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Journal articles on the topic 'WiMAX'

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Published: 4 June 2021

Last updated: 4 May 2024

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1

Suharlin. "Sistem Keamanan pada Teknologi WiMAX." Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik 7, no. 1 (September 1, 2020): 24–30. http://dx.doi.org/10.26874/jt.vol7no1.278.

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Worldwide Interoperability for Microwave Access (WIMAX / IEEE 802.16) adalah teknologi wireless, yang merupakan perkembangan dari teknologi Wireless Fidelity (WiFi) yang saat ini telah banyak digunakan masyarakat. Wireless fidelitv (WiFi) menggunakan sistem keamanan sebesar 64 bit dan maksimum 128 bit. Sedangkan sistem keamanan yang dipakai pada WiIMAX adalah Advanced Eneryption Standard (AES) yang dapat mengenkripsi data mulai 128 bit, 192 bitdan 256 bit. Sistem keamanan yang digunakan dalam WiIMAX (IEEE 802.16) berupa duthentication, authorization dan encryption. Tingkat keamanan yang dihasilkan mencapai dua kali lipat dibandingkan dengan sistem keamanan yang dihasilkan dalam Wireless Fidelity (WiFi). Dengan demikian sistem keamanan pada WIMAX dapat diandalkan oleh para pengguna yang memerlukan tingkat keamanan tinggi dan handal dalam penggunaan internet.

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Rafsyam, Yenniwarti, Milda Yuliza, and Lifwarda Lifwarda. "Aplikasi WiMAX." Elektron : Jurnal Ilmiah 1, no. 1 (September 10, 2009): 67–74. http://dx.doi.org/10.30630/eji.1.1.11.

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WiMAX is Broadband Wireless Acces (BWA) technology evolution with interactive fitur. WiMAX not only have issue about data speed problem but also about open standard. It means, communications between WiMax instruments between some different vendors are not proprietary. WimAX orientations are not only for fixed market, but also for portable and mobile market. WiMAX with high speed data (up to 70 MBps) is suitable to apply in last mile broadband connections, backhaul and high speed enterprise.

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3

Padia, Zarana C., Pranav S. Doshi, and Bhavika B. Ghariya. "Wimax Technology." Indian Journal of Applied Research 3, no. 8 (October 1, 2011): 136–37. http://dx.doi.org/10.15373/2249555x/aug2013/44.

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4

Bohnert, Thomas Michael, Marco Castrucci, Nicola Ciulli, Giada Landi, Ilaria Marchetti, Cristina Nardini, Bruno Sousa, Pedro Neves, and Paulo Simoes. "QoS Management and Control for an All-IP WiMAX Network Architecture: Design, Implementation and Evaluation." Mobile Information Systems 4, no. 4 (2008): 253–71. http://dx.doi.org/10.1155/2008/407565.

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The IEEE 802.16 standard provides a specification for a fixed and mobile broadband wireless access system, offering high data rate transmission of multimedia services with different Quality-of-Service (QoS) requirements through the air interface. The WiMAX Forum, going beyond the air interface, defined an end-to-end WiMAX network architecture, based on an all-IP platform in order to complete the standards required for a commercial rollout of WiMAX as broadband wireless access solution. As the WiMAX network architecture is only a functional specification, this paper focuses on an innovative solution for an end-to-end WiMAX network architecture offering in compliance with the WiMAX Forum specification. To our best knowledge, this is the first WiMAX architecture built by a research consortium globally and was performed within the framework of the European IST project WEIRD (WiMAX Extension to Isolated Research Data networks). One of the principal features of our architecture is support for end-to-end QoS achieved by the integration of resource control in the WiMAX wireless link and the resource management in the wired domains in the network core. In this paper we present the architectural design of these QoS features in the overall WiMAX all-IP framework and their functional as well as performance evaluation. The presented results can safely be considered as unique and timely for any WiMAX system integrator.

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5

AbhinashSingla, Shikha and Meenakshi Sharma. "To Design An Efficient Scheme For Mobility Of Nodes In Dynamic WSAN Based Upon Optimized Ad-ATMA." International Journal for Modern Trends in Science and Technology 7, no. 07 (February 20, 2022): 39–46. http://dx.doi.org/10.46501/ijmtst050330.

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Worldwide Interoperability for Microwave Access (referred to as WiMAX) is a MAC and physical layer wireless communications technology for outdoor broadband wireless coverage. The WiMAX standard leaves key areas of the protocol, including packet scheduling, frame packing, and modulation/coding adaptation, unspecified. In order to accurately model and analyze WiMAX, realistic assumptions must be used. Because WiMAX systems have not been widely studied, there is a disconnect between theoretical WiMAX systems and real-world deployed systems. In this paper we are mixing up the WLAN and Wimax protocols to make it more useful for various applications.

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6

Mohamadwasel, Noorulden Basil, and Mohammed Ahmed Abdala. "Design of WiMAX Network for Istanbul Universities With OPNET." Informatica : Journal of Applied Machines Electrical Electronics Computer Science and Communication Systems 01, no. 01 (December 1, 2020): 1–9. http://dx.doi.org/10.47812/ijamecs2010101.

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WiMAX- Worldwide Interoperability for Microwave Access-is an innovation standard for long-separation extend remote systems that incorporate both portable WiMAX 802.16e and fixed WiMAX 802.16d associations. WiMAX hardware exists in two essential structures base stations, WiMAX base station can give an inclusion region to an exceptionally enormous zone up to a span of 6 miles, WiMAX Receiver is likewise called client premise gear like a collector hub in Antenna. Right now, Istanbul colleges are associated with utilizing WiMAX innovation that improves the system bit rate and inclusion zone. Explicit qualities for WiMAX parameters have been picked that improve the greater part of the WiMAX organize parameters, for example, the general system delay, Packet End-to-End Delay, Throughput, Load, Traffic handset, and Packet Delay Variation. In Istanbul, specialized college hub has explicit parameters, for example, in cell sweep 3km and bearer recurrence 3 GHz and Channel Bandwidth 4.5 MHZ and the quantity of subcarriers 1024 and different colleges that not quite the same as college to college this relying upon the number of parameters which every college is diverse in parameters however it has a similar receiving wire increase and transmission power.

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7

Sedoyeka, Eliamani, and Ziad Hunaiti. "WiMAX Networks." International Journal of Handheld Computing Research 3, no. 4 (October 2012): 72–86. http://dx.doi.org/10.4018/jhcr.2012100105.

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Every new technology comes with its challenges and lessons to be learnt. With a number of unknowns, deploying a new technology becomes a challenge. Worldwide Interoperability for Microwave Access (WiMAX) is one of these new technologies currently on the rise. This paper presents the finding of the research conducted to investigate technical and non technical aspects of network operators in Tanzania. The research looked into WiMAX network operational challenges faced by the network owners as well as the level of services experienced by the end users. This paper is suitable researchers, network operators and investors interested in WiMAX technology. It is mostly usefully for those looking into solutions to problem facing rural and remote areas of the world. The research is discussed in detail throughout of the article.

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8

Tsagkaris, Kostas, and Panagiotis Demestichas. "WiMax network." IEEE Vehicular Technology Magazine 4, no. 2 (June 2009): 24–35. http://dx.doi.org/10.1109/mvt.2009.932549.

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9

Yum, Peter. "WiMax update." IEEE Communications Magazine 47, no. 10 (October 2009): 82. http://dx.doi.org/10.1109/mcom.2009.5273812.

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10

Kennedy, Steve. "WiMAX – WiNOT?" ITNOW 48, no. 1 (January 1, 2006): 18. http://dx.doi.org/10.1093/itnow/bwi138.

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11

Sufyan, Ali, Yasir Salam, and Sundas Amin. "Handover Comparisons of WiMAX and WiMAX Release 2." International Journal of Computer Network and Information Security 9, no. 8 (August 8, 2017): 41–47. http://dx.doi.org/10.5815/ijcnis.2017.08.06.

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12

Bhattacharyya, Budhaditya, Ipsita Deb, and Nalini Sharma. "Design and analysis of physical layer security aspects in MIMO-OFDM based WiMAX network." International Journal of Engineering & Technology 7, no. 4 (September 24, 2018): 2558. http://dx.doi.org/10.14419/ijet.v7i4.14993.

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The protocol 802.16 of the IEEE proposed a technology of wireless broadband called WiMAX which overcomes the limitations of other wireless technologies that came prior to WiMAX. WiMAX has acquired significant attention owing to its mobility support, longer trans-mission range and higher transmission rate. In order to ensure usability and reliability, a number of security concerns are required to be addressed in WiMAX. The first part of this work is to analyze the performance of a MIMO-OFDM based WiMAX under Rayleigh fading channel using SIMULINK environment under diverse encoding algorithms and adaptive modulation schemes in terms of throughput and bit-error-rates. The second objective being its performance analysis using various standard cryptographic algorithms such as Rivest-Shamir-Adleman (RSA), Data Encryption Standard (DES) and Advanced Encryption Standard (AES), which enhances the security and efficiency of a WiMAX networks.

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13

Al-Adwany, Maan. "Performance Evaluation of Downlink WiMAX System in Vicinity of UWB System." Iraqi Journal for Electrical and Electronic Engineering 7, no. 2 (December 1, 2011): 120–24. http://dx.doi.org/10.37917/ijeee.7.2.6.

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In this paper, we evaluate the performance of WiMAX downlink system in vicinity of UWB system. The study is achieved via simulating a scenario of an office building which utilizes from both WiMAX and UWB appliances. From the simulation results, we found that WiMAX system is largely affected by the UWB interference. However, in order to overcome the interference problem and achieve reasonable BER (Bit Error Rate) of 10-4, we found that it is very necessary to raise the WiMAX transmitted power in relative to that of UWB interferer. So, the minimum requirements for WiMAX system to overcome UWB interference are stated here in this work.

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14

Susilawati, Hesti, Widhiatmoko Widhiatmoko, and Dimass Noly Mardhiko. "Perencanaan Jaringan Akses Mobile Wimax (Worldwide Interoperability For Microwave Access) 2,5 Ghz Untuk Wilayah DKI Jakarta." JURNAL INFOTEL - Informatika Telekomunikasi Elektronika 3, no. 1 (May 10, 2011): 37. http://dx.doi.org/10.20895/infotel.v3i1.87.

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Standar IEEE 802.16e yang dikenal dengan mobile WiMAX adalah standar broadband wireless access (BWA) yang beroperasi pada frekuensi 2 - 6 GHz. Standar ini merupakan pengembangan dari standar WiMAX sebelumnya untuk mendukung mobilitas pengguna. Pada penelitian ini, penulis melakukan perhitungan untuk memprediksi kebutuhan bandwidth untuk pelanggan mobile WiMAX di wilayah DKI Jakarta untuk jangka waktu tiga tahun sejak WiMAX diimplementasikan. Kebutuhan bandwidth ini akan digunakan untuk menentukan jumlah base station yang dibutuhkan dari sisi kapasitas. Penulis juga melakukan perhitungan jumlah base station dari sisi coverage menggunakan persamaan Erceg. Dari hasil perhitungan tersebut, dapat disimpulkan bahwa pada tiga tahun pertama penetrasi WiMAX di Jakarta, kebutuhan jumlah base station dari sisi coverage lebih besar dari pada perhitungan dari sisi kapasitas.

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15

Azizah, Andi. "PERKEMBANGAN TEKNOLOGI 4G (LTE & WiMAX)." MUSTEK ANIM HA 5, no. 2 (August 2, 2016): 157–67. http://dx.doi.org/10.35724/mustek.v5i2.621.

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WiMAX (Worldwide Interoperability for Microwave Access) adalah sebuah forum industri yang mensertifikasi dan menstandarisasi produk-produk yang mengimplementasikan standar IEEE 802.16 WirelessMAN. WiMAX merupakan teknologi nirkabel yang dapat mengatasi berbagai aplikasi dengan cakupan MAN (Metropolitan Area Network), Penggunaan WiMAX untuk koneksi backhaul secara teknis dapat dilakukan karena kehadiran WiMAX dapat mengatasi permasalahan pada koneksi backhaul WiFi. Teknologi Long Term Evolution (LTE) merupakan standar terbaru teknologi jaringan bergerak, sebagai kembangan dari GSM (Global System for Mobile Communication)/ EDGE (Enhanced Data Rate for GSM Evolution) dan UMTS (Universal Mobile Telephone Standard)/HSDPA (High Speed Downlink Packet Access). LTE (Long Term Evolution)Â mampu memberikan kecepatan downlink hingga 100 Mbps dan uplink hingga 50 Mbps.Â Telkom dan First Media yang paling potensial mengembangkan WiMAX. Telkom dapat memanfaatkan teknologi WiMAX untuk meng-upgrade jaringan Speedy maupun Flexi. Namun sepertinya Telkom punya pilihan lain. Mungkin Telkom memilih GPON (Gigabit Possive Optical Network) untuk Speedy dan EVDO (Evolution Data Optimized)-LTE untuk Flexi. Berca baru melakukan komersial pada Februari 2011 dengan merk dagang WiGO. Jaringan WiGO tergelar di delapan kota yaitu Medan, Balikpapan, Batam, Denpasar, Makassar, Pekanbaru, Palembang, dan Pontianak. Sampai akhir tahun 2012 WiGO merencanakan 400 BTS WiMAX.

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Karthik, C., K. Damodar, P. Pragathi, S. Pavithra, and SK Jasmin. "Spike Shaped AMC Backed Patch Antenna for X Band Applications." International Journal of Innovative Research in Engineering and Management 9, no. 2 (April 27, 2022): 639–43. http://dx.doi.org/10.55524/ijirem.2022.9.2.101.

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In This paper, a single pole broken spike shaped antenna is there. The main objective is for the application of WiMAX band. For the required band, we carried out the proposed antenna into different iteration models. The proposed antenna which is heart shape works in WiMAX Frequency (3.2GHz-4,1GHz). To Increase the band width(900MHz), and gain (3dB), A two Slotted ring resonator in heart shape is done in them last iteration. In this design the parameters like VSWR is almost less than the WiMAX band and impedance will be 89% has been noted. Finallly the monopole antenna which in broken heart shape works at WiMAX band having medium gain, high efficiency, reduce in size that are useful for WiMAX band applications.

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17

Mahjabeen, D., M. A. Rashid, and S. B. Mohamed. "Notice of Retraction Performace Analysis of WiMAX Traffic Based on WiMAX Traffic Parameters." APTIKOM Journal on Computer Science and Information Technologies 4, no. 1 (March 1, 2019): 19–26. http://dx.doi.org/10.11591/aptikom.j.csit.132.

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Notice of Retraction-----------------------------------------------------------------------After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of APTIKOM's Publication Principles.We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.The presenting author of this paper has the option to appeal this decision by contacting ij.aptikom@gmail.com.----------------------------------------------------------------------- WiMAX is a broadband wireless technology for high speed direct access to internet. This broadband technology offers a rich set of features like better coverage area, bandwidth, flexibilities and many other new applications than contemporary wireless technologies. Here traffic engineering becomes a great issue for the better performance of WiMAX technology. This paper mainly focuses on traffic analysis of WiMAX. Based on different WiMAX traffic parameters, traffic analysis of WiMAX is performed depending on data, graph for various conditions in real world application like Bangladesh. Comparative analysis with other countries of the world for the same WiMAX provider is also presented to give a clear picture of traffic flow in a WiMAX network in Bangladesh. From the discussion, it is found that performance of WiMAX in our country is up to satisfaction and proves itself as a better competent. Some suggestions are also mentioned to make it more effective and best candidate to offer better throughput broadband wireless connectivity at a much lower cost with the help of existing architecture and available resources.

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18

Fu, I.-kang, Yih-shen Chen, Paul Cheng, Youngsoo Yuk, Ronny Kim, and Jin Kwak. "Multicarrier technology for 4G WiMax system [WiMAX/LTE Update." IEEE Communications Magazine 48, no. 8 (August 2010): 50–58. http://dx.doi.org/10.1109/mcom.2010.5534587.

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19

Israr, Imran, Mahmood Ashraf Khan, Shahzad A. Malik, Shahid A. Khan, and Mustafa Shakir. "Path Loss Modeling of WLAN and WiMAX Systems." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 5 (October 1, 2015): 1083. http://dx.doi.org/10.11591/ijece.v5i5.pp1083-1091.

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<p>With the advancement in technology, there was need for efficient and high speed internet through which we could have access to multiple networks as per the user requirement. WLAN met this need to some extent but, due to its low range it was not recommended commercially. With the introduction of WiMAX there was an emerging need to select the best network amongst WiMAX or WLAN depending upon the user location. Pathloss with respect to these particular networks also needs to be compared. In this paper we compare the pathloss modelling for WiMAX and WLAN systems. Different Models have been compared with each other to know which model performs better by keeping same simulation environment. Path Loss models used for WLAN are Okumura, Hata, Cost-231 and Free Space Path Loss whereas models used for WiMAX are Free Space Path Loss, Okumura-Hata, Cost231-Hata and Stanford University Interim. In case of WiMAX three different scenarios Urban, Sub-Urban and Rural is considered where as in case of WLAN only outdoor environment is considered. With the Path Loss comparison, power received for these two technologies; WiMAX, and WLAN is also simulated. MATLAB is the tool used for simulations. Antenna Specifications for WiMAX and WLAN is kept same for all simulation environments.</p>

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20

Feng, Xian Jie. "Wireless Backhaul Technology in Monitoring System for Subway OTN+WiMax." Advanced Materials Research 846-847 (November 2013): 680–83. http://dx.doi.org/10.4028/www.scientific.net/amr.846-847.680.

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In the OTN+WiMax control system of Metro, the use of wireless backhaul can reduce costs and increase security. This paper presented a variety of OTN+WiMax hardware solution for Metro monitoring systems for wireless backhaul system by comparing the variety of chips; For WiMAX, Wi-Fi coexisting wireless backhaul situation, we put forward the hardware design using low-power high-speed chip of Infineon's SMARTi hardware design,, and pointed out that the design programme belongs to energy-saving green environmental. Also we used Intel WiMAX Connection 2,400 chip design hardware programme of wireless backhaul system for monitoring. At last, The software radio technology is applied to wireless backhaul system.

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21

Al-Adwany, Maan. "A Performance Study of Wireless Broadband Access (WiMAX)." Iraqi Journal for Electrical and Electronic Engineering 7, no. 2 (December 1, 2011): 125–29. http://dx.doi.org/10.37917/ijeee.7.2.7.

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WiMAX (worldwide interoperability for microwave access) is one of the wireless broadband access technologies which supplies broadband services to clients, but it surpasses other technologies by its coverage area, where one base station can cover a small city. In this paper, WiMAX technology is studied by exploring its basic concepts, applications, and advantages / disadvantages. Also a MATLAB simulator is used to verify the operation of the WiMAX system under various channel impairments and for variety of modulation schemes. From the simulation results, we found that WiMAX system works well in both AWGN and multipath fading channels, but under certain constraints that are addressed in this paper.

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22

Ni, Zhen Tao, Ying Zhong, and Lei Huang. "Research on Secure Model in WiFi/WiMAX Mixed Networks Based on Pre-Authentication." Applied Mechanics and Materials 644-650 (September 2014): 2988–91. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.2988.

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The integrated WiFi and WiMAX network is of great potential for the future due to the high data transport capacity of WiFi and the wider coverage of WiMAX. According to the requirements for real-time service in the wireless network, a fast secure authentication model in the WiFi/WiMAX mixed networks is proposed. It is based on the EAP-TLS protocol and its authentication procedure is divided into two stages: pre-authentication and re-authentication. By the utilization of the pre-authentication the authentication delay is reduced significantly when a MS roams between WiFi and WiMAX networks, which can be used to support real-time service in the mixed wireless network to some extent.

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23

R Shankar, Arathi, Raghavendra G, and V. Sambasiva Rao. "HARQ Implementation for Efficient MAC to MAC Video Streaming over Mobile WiMAX." INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY 5, no. 1 (August 15, 2013): 455–69. http://dx.doi.org/10.24297/ijmit.v5i1.4489.

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IEEE 802.16e is the standard for Mobile WiMAX which was introduced by the IEEE committee to provide broadband access in rural and urban areas over fixed wireless channels. Mobile WiMAX is an enhanced version of IEEE 802.16 standard with mobility support. There are lots of challenges involved in the service provided by the Mobile WiMAX. Efficient data transfer between different layers of mobile WiMAX is one of the major research issues. In this work HARQ (Hybrid Automatic Repeat Request) technique is implemented in Qualnet environment for an efficient transmission of video streaming across PHY(Physical) and MAC(Medium Access Control) layer of mobile WiMAX (Worldwide Interoperability for Microwave Access). HARQ utilizes both FEC (Forward Error Correction) an d ARQ (Automatic Repeat Request) techniques to reduce the delay, jitter and to increase throughput efficiently under prescribed quality of service constraint. Different Scheduling schemes and cross layer approaches that support mobile WiMAX are analysed. mmSIR scheduler is used in this work since it allocates resources priority wise. Diffferent network quality parameters like end to end delay,average jitter,and average throughput have been analysed by using existing ARQ and implemented HARQ techniques.Both ARQ and HARQ techniques are compared for a video application.

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Aguado, M., O. Onandi, P. S. Agustin, M. Higuero, and E. Jacob Taquet. "WiMax on Rails." IEEE Vehicular Technology Magazine 3, no. 3 (September 2008): 47–56. http://dx.doi.org/10.1109/mvt.2008.927489.

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Yoon, Wonyong. "WiMAX and Bluetooth." IEEE Vehicular Technology Magazine 6, no. 4 (December 2011): 60–67. http://dx.doi.org/10.1109/mvt.2011.942810.

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26

Karanasios, Stan, and David Allen. "WiMAX for development." Information Technology for Development 16, no. 4 (October 2010): 320–28. http://dx.doi.org/10.1080/02681102.2010.487046.

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27

Harris, S. "WiMAX is coming." Communications Engineer 2, no. 4 (August 1, 2004): 8. http://dx.doi.org/10.1049/ce:20040412.

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Gierłowski, Krzysztof, Józef Woźniak, and Krzysztof Nowicki. "A hybrid-mesh solution for coverage issues in WiMAX metropolitan area networks." Journal of Telecommunications and Information Technology, no. 1 (June 25, 2023): 20–28. http://dx.doi.org/10.26636/jtit.2008.1.859.

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The new WiMAX technology offers several advantages over the currently available (GSMor UMTS-based) solutions. It is a cost effective, evolving, and robust technology providing quality of service guarantees, high reliability, wide cov- erage and non-line-of-sight (NLOS) transmission capabilities. All these features make it particularly suitable for densely populated urban environments. In this paper we discuss the design and implementation difficulties concerning network coverage discovered in a test-bed implementation of WiMAX. We point out the presence of unexpected “white spots” in the coverage, which are not inherently characteristic of the WiMAX concept. As a possible remedy to this significant drawback of the otherwise very promising technology, we consider reconfigurable mesh organization of WiMAX base stations. We also suggest directions for further development of this kind of network operation, partly based on our practical experience. Despite the clear advantages of the mesh mode in WiMAX networks, its development is currently at an early stage, due to the high complexity of the necessary mechanisms. In this situation, we propose an original, much simpler solution: the so-called support-mesh mode.

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Li, Na, Xian Jun Gao, and Xue Hao. "Analysis of the Comparison of OFDM and WPM in the Communication System." Applied Mechanics and Materials 198-199 (September 2012): 1794–99. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.1794.

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The fundamental theories of OFDM and WPM have many similarities in their functions and performance but there are some significant differences which give two systems to be distinctive. OFDM signals only overlap in the frequency domain while the wavelet signals overlap in both time and frequency domain. In the paper, WPM instead of conventional OFDM is used in WIMAX system. The simulation results show the WPM on WIMAX has lower bit error rate compare to conventional OFDM WIMAX.

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Naveena, A., and Udataneni Divya. "A Survey on Physical Layer Performance of MIMO-WiMAX." E3S Web of Conferences 491 (2024): 03021. http://dx.doi.org/10.1051/e3sconf/202449103021.

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The IEEE 802.16 WiMAX standard for BWA (Broadband Wireless Access) was designed to offer end users high transmission data rates across wider regions.Wireless communication requires MIMO systems because they enable data to be sent and received through multiple antennas. This study examines how the MIMO-WiMAX physical layer performs while using different modulation techniques and channel coding approaches the BER performance of WiMAX systems, the Alamouti Space Time Block Code method for MIMO is being investigated.

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Aliu, Daniel, and Muyideen Omuya Momoh. "Optimal Resource Scheduling Algorithm for OFDMA-based Multicast Traffic Delivery over WIMAX Networks using Particle Swarm Optimization." International Journal of Software Engineering and Computer Systems 7, no. 2 (August 30, 2021): 50–63. http://dx.doi.org/10.15282/ijsecs.7.2.2021.6.0089.

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Researchers are yet to entirely mapped out the difficulty in allocating optimal resources to mobile Worldwide Interoperability for Microwave Access (WiMAX) subscribers. This research presents an optimal scheduling algorithm for WiMAX resource allocation based on an Particle Swarm Optimization (PSO). In this work, sub-group creation is used to offer a PSO-based technique for allocating subcarriers and Orthogonal Frequency Division Multiplexing (OFDM) symbols to mobile WiMAX customers. The WiMAX network environment is organized into seven layers, with seven different modulation and coding algorithms proposed for sending packets to subscribers within each layer. By adopting an improved PSO-based WiMAX resource allocation method, an enhanced model for throughput maximization and channel data rate was implemented. The Aggregate Data Rate (ADR) and Channel Data Rate (CDR) for each scenario were obtained by simulating several scenarios of WiMAX multicast service to mobile users. Based on the performance evaluation of the enhanced algorithm for ADR and CDR, the results for the various layers and uniform distribution of users over the full layers were 350Mbps, 525Mbps, 700Mbps, 1050Mbps, 1050Mbps, 1400Mbps, 1575Mbps, and 1398Mbps. 6.98Mbps, 10.48Mbps, 13.97Mbps, 20.95Mbps, 20.95Mbps, 27.94Mbps, 31.5Mbps, and 28Mbps were also achieved for CDR. The significance of optimal resource allocation is to achieved a maximum ADR and CDR. The results showed a fair distribution of resources within the coverage area of the network.

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Mokeresete, Malebogo, and Bukohwo Michael Esiefarienrhe. "Can the WiMAX IEEE 802.16 Standard Be Used to Resolve Last-Mile Connectivity Issues in Botswana?" Telecom 3, no. 1 (February 8, 2022): 150–62. http://dx.doi.org/10.3390/telecom3010010.

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Some of the advantages of using Worldwide Interoperability Microwave Access (WiMAX) technology at the last-mile level as an access technology include an extensive range of 50 km Line of Sight (LOS), 5 to 15 km Non-Line of Sight, and fewer infrastructure installations compared to other wireless broadband access technologies. Despite positive investments in ICT fiber infrastructure by developing countries, including Botswana, servicing end-users is subjected to high prices and service disparities. The alternative, the Wi-Fi hotspot initiative by the Botswana government, falls short as a solution for last-mile connectivity and access. This study used OPNET simulation Modeler 14.5 to investigate whether Botswana’s national broadband project could adopt WiMAX IEEE 802.16e as an access technology. Therefore, using the experimental method, the simulation evaluated the WiMAX IEEE 802.16e/m over three subscriber locations in Botswana. The results obtained indicate that the deployment of the WiMAX IEEE 802.16e standard can solve most of the deployment issues and access at the last-mile level. Although the findings suggest that WiMAX IEEE 802.16e is more suitable for high-density areas, it could also solve rural areas’ infrastructure development challenges and provide the required high-speed connectivity access. However, unlike the Wi-Fi initiative, which requires more infrastructure deployment and relies less on institutional and regulatory frameworks, the deployment of WiMAX IEEE 802.16e necessitates institutional and regulatory standards.

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TENG, HUNG-YI, HUNG-CHI LAI, and REN-HUNG HWANG. "ENERGY EFFICIENCY POWER CONTROL OF CELL BREATHING IN EPON-WIMAX HYBRID ACCESS NETWORK." Journal of Interconnection Networks 13, no. 03n04 (September 2012): 1250012. http://dx.doi.org/10.1142/s0219265912500120.

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In this paper, a load balancing mechanism based on cell breathing was proposed for the hybrid EPON-WiMAX network. The hybrid EPON-WiMAX network integrates the emerging Ethernet Passive Optical Network (EPON) and Worldwide Interoperability for Microwave Access (WiMAX) technologies to support high bandwidth, broadband access, mobility, and Quality of Service (QoS) guarantee. Load balancing is required due to uneven distribution of traffic among different WiMAX base stations (BS) as well as mobility of WiMAX Subscriber Station (SS). Cell breathing is a well-known load balancing technique adopted in wireless networks. By changing the transmission powers of the base stations, the cell breathing technique is able to adjust the traffic, both uplink and downlink, load of base stations. In the integrated EPON-WiMAX network, transmission powers of WiMAX base stations can be optimally allocated at the EPON optical networking unit (ONU). In this paper, we formulate the cell breathing-based load balancing problem into a linear programming problem. Our goal is to find the best power adjustment that maximizes system throughput. To alleviate the time complexity of solving the linear programming problem, we propose a Heaviest Load First Algorithm (HLFA) to obtain the near optimal solution. The solution obtained by the HLFA algorithm will not waste any transmission power to make the entire system energy-efficiency. We demonstrate the performance of HLFA via extensive simulations. The simulation results show that the HLFA can provide the best solution to achieve load balancing and enhance the system throughput as compared to existing solutions. Furthermore, HLFA maintains good performance even when the system has multiple overloaded ONU-BSs.

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Tari, Gunawan, Muhammad Rahmadi, Muhammad Iqra. B, Ady Rasidin, Muh Fajrin, Zaim Uchrowi, Fardi M. Siregar, and Muh Annur Jimran. "Desain Simulasi Antena Mikrostrip 2,3 Ghz untuk Aplikasi WiMAX 802.16e." Dewantara Journal of Technology 3, no. 1 (May 30, 2022): 31–36. http://dx.doi.org/10.59563/djtech.v3i1.147.

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Antena Mikrostrip Patch dirancang dalam 2,3 GHz dengan kemampuan pangarah berkas sehingga sesuai dengan aplikasi WiMAX. Microstrip patches antenna untuk standard IEEE 802.16-2004 bagi kegunaan mikrogelombang dan WiMax. Penelitian ini membahas tentang antena mikrostrip monopole patch gabungan persegi untuk aplikasi WiMAX. Antena mikrostrip monopole patch gabungan persegi ini dirancang dengan menggunakan feed line sebagai metode pencatuannya. Dimensi antena diperoleh melalui perhitungan dan optimasi serta dilakukan simulasi dengan menggunakan software HFSS AnsoftTM versi 11. Hasil simulasi antena mikrostrip monopole patch gabungan persegi menunjukan frekuensi kerja 2500 MHz dengan frekuensi aman untuk WiMAX yaitu 2500-2690 MHz, juga memiliki polarisasi lingkaran, jenis pola radiasi omnidireksional, dan nilai gain sebesar 4.3 dBi pada frekuensi 2500 MHZ. Bermacam variasi dalam dimensi dan slot pada antena mikrostrip ini dapat mempengaruhi nilai frekuensi kerja dan gain antena itu sendiri.

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Risty, Ammatia, Rendy Munadi, and Ridha Muldina Negara. "Analisis Unjuk Kerja Horizontal Handover Mobile Wimax Mendukung Layanan Mobile TV." JURNAL INFOTEL - Informatika Telekomunikasi Elektronika 8, no. 1 (May 10, 2016): 47. http://dx.doi.org/10.20895/infotel.v8i1.51.

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IEEE 802.16e-2005 teknologi mobile WiMAX merupakan salah satu alternatif yang dapat memberikan datarate 15 Mbps yang lebih baik daripada teknologi 3G, WLAN, dan lain-lain. Mobile WiMAX juga memberikan cakupan area yang luas. Oleh karena itu, WiMAX mampu memberikan layanan berbagai macam aplikasi multimedia seperti VoIP, IPTV, Video conferencing. dan aplikasi real-time lainnya. Selain itu, Mobile WiMAX juga mendukung mobility secara portable, mobile, dan nomadic. Saat ini IPTV muncul pada mobile phone, yang dinamakan mobile TV dimana layanan IPTV akan dapat diakses dalam keadaan bergerak. Hal itu membutuhkan suatu teknologi yang mendukung mobility namun tetap dapat menerima layanan IPTV dengan baik. Teknologi mobile WiMAX adalah teknologi yang cocok untuk mendukung layanan IPTV khususnya untuk user yang sedang bergerak. Akibat dari user yang bergerak maka memungkinkan user tersebut melakukan handover. Penelitian ini menganalisis parameter unjuk kerja yang mempengaruhi pada mobile TV saat user melakukan handover pada jaringan mobile WiMAX seperti jitter, end to end delay, throughput, handover delay dengan skenario perbedaan kecepatan dan perubahan jumlah user dalam satu cakupan area. Berdasarkan hasil simulasi untuk skenario perbedaan kecepatan (maksimum 100 km/jam) diperoleh nilai end to end delay sebesar 23.234 ms, jitter sebesar 0.047 ms, throughput sebesar 637.723 Kbps. Sedangkan skenario jumlah user diperoleh nilai end to end delay 27.218 ms, jitter sebesar 0.057 ms, throughput sebesar 558.881 Kbps. Hasil dari kedua skenario menunjukkan bahwa saat kecepatan dan jumlah user naik maka parameter kualitas layanan turun namun masih memenuhi syarat kualitas layanan Mobile TV (IPTV).

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Kansal, Lavish, Gurjot Singh Gaba, Ashutosh Sharma, Gaurav Dhiman, Mohammed Baz, and Mehedi Masud. "Performance Analysis of WOFDM-WiMAX Integrating Diverse Wavelets for 5G Applications." Wireless Communications and Mobile Computing 2021 (November 1, 2021): 1–14. http://dx.doi.org/10.1155/2021/5835806.

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In the 5th generation (5G) and 6th generation (6G) of wireless mobile telecommunication networks, the requests for an elevated data rate with access to stationary as well as portable customers are going to be overwhelming. Mobile worldwide interoperability for microwave access (WiMAX) comes out as a favourable alternative that is intelligibly developed and more matured than wireless fidelity (Wi-Fi). Mobile WiMAX makes use of the orthogonal frequency division multiple access (OFDMA) technology for its two-way communication to enhance the system performance in fading environments making it more suitable for 5G applications. The diverse OFDM forms deliberated here are the fast Fourier transform- (FFT-) based WiMAX and discrete wavelet transform- (DWT-) based WiMAX. The suggested study exhibits the bit error rate (BER) and peak to average power ratio (PAPR) reduction by integrating different wavelet families, i.e., Haar, symlet, coiflet, and reverse biorthogonal over Rayleigh fading channel. The simulation results obtained by MATLAB depicts an improvement in PAPR reduction, and signal to noise ratio (SNR) requirement is also reduced by 6-12 dB by using DWT-incorporated WiMAX at a BER of 10-4.

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Manohar, M. S., K. Srinivasa Rao, V. Sasi Kiran, N. Manogna, and N. V. Pardhasaradhi. "Triangular Srr Based Triple Band Amc Backed Antenna for High Gain Sub6ghz Application." International Journal of Innovative Research in Engineering and Management 9, no. 3 (June 25, 2022): 183–87. http://dx.doi.org/10.55524/ijirem.2022.9.3.29.

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This article describes a triple band monopole antenna. t has been assumed that the WiMAX band application is objective. In order to attain the required band, various iterations of the proposed antenna design are carried out. The proposed antenna in the shape of broken hearts operates in the frequency range of 3.2GHz to 4.1GHz. In the final iteration, the heart-shaped double slotted ring resonator (SRR) with two different radii is seen to improve the bandwidth (900MHz) and gain (3dB). In this design, additional parameters like VSWR (approximately 2 at the WiMAX band), impedance (real and imaginary), and efficiency (approximately 89%) have been observed. As a result, the proposed monopole antenna in the shape of a broken heart that operates in the WiMAX band exhibits high efficiency, reduced size, and moderate gain. which play a crucial role in the WIMAX application band.

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Kim, Woonsub. "Mobile WiMax, the leader of the mobile Internet era [WiMAX Report]." IEEE Communications Magazine 47, no. 6 (June 2009): 10–12. http://dx.doi.org/10.1109/mcom.2009.5116792.

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Edward, N., Z. Zakaria, and N. A. Shairi. "Reconfigurable Feeding Network with Dual-band Filter for WiMAX Application." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 5 (October 1, 2017): 2411. http://dx.doi.org/10.11591/ijece.v7i5.pp2411-2419.

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<span lang="EN-US">Design and simulation for reconfigurable Wilkinson Power Divider (WPD) related to WiMAX application is proposed in this paper. This proposed design relates to dual band WiMAX frequencies at 2.5 GHz and 3.5 GHz. The main purpose of this design is to design a switchable feeding network that can cover the WiMAX standards by reconfiguring the microstrip line length using PIN diode switches. Besides, the power divider also can be design and develop as power combiner due to the passive component structure and hence reciprocal. In this proposed Wilkinson power divider, different band of frequencies for WiMAX application are obtained by using PIN diode. By turning ‘ON’ and ‘OFF’ the PIN diode, different frequencies are achieved between 2.5 and 3.5 GHz. This proposed design used Rogers RO4350 (er = 3.48, h = 0.508mm) as a substrate material and copper (thickness = 0.002 mm) related to patch of design. This simulation results showed that the S11 is less than -15dB; and S12 and S13 are better than -5dB. Based on these simulation results, the proposed WPD design using dual-band filter was well applied where it has better return loss (S11) with less than -15 dB for both WiMAX frequencies.</span>

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Minhas, Abid Ali, Ahmed Qaddus, Muhammad Saeed Khan, Mohsin Iftikhar, Tanveer Zia, Abdulaziz Almazyad, and Naveen Chilamkurti. "Towards the Elimination of White Spots in Mobile WiMAX Grids through Time Efficient Cognitive Vertical Handoff Algorithm." Mobile Information Systems 2016 (2016): 1–17. http://dx.doi.org/10.1155/2016/6254028.

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During the past two decades particularly, there has been incredible growth in the telecommunication industry which evolved the demand for real time applications. Mobile grids and internet service providers are offering competitive real time services to customers in order to fulfil their daily demands. Nowadays, WiMAX has become a key player in telecommunication industry for providing cost effective communication solutions to customers residing in developed and underdeveloped regions. Moreover, a significant role of WiMAX technology is to fill the gap between the first-world and third-world countries. WiMAX technology offers affordable low cost wireless multimedia services to its customers by using point to multipoint propagation methods. Over the past few years, the problem of white spots in WiMAX grids has been reported in the literature extensively. Consequently, this issue has got a lot of attention from researchers. In order to disentangle the phenomenon of white spots, a novel algorithm based on time efficient cognitive vertical handoff scheme has been presented in this paper. The proposed algorithm is based upon principles of cognitive heterogeneous wireless grids. The simulation results have shown that the proposed algorithm is a promising candidate to overcome the problem of white spots in mobile WiMAX grids.

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Tsiknas, Konstantinos, and George Stamatelos. "Comparative Performance Evaluation of TCP Variants in WiMAX (and WLANs) Network Configurations." Journal of Computer Networks and Communications 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/806272.

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An important application for the IEEE 802.16 technology (also called WiMAX) is to provide high-speed access to the Internet where the transmission control protocol (TCP) is the core transport protocol. In this paper we study through extensive simulation scenarios the performance characteristics of five representative TCP schemes, namely, TCP New Reno, Vegas, Veno, Westwood, and BIC, in WiMAX (and WLANs) networks, under the conditions of correlated wireless errors, asymmetric end-to-end capabilities, and link congestion. The target is to evaluate how the above conditions would affect the TCP congestion control and suggest the best schemes to be employed in WiMAX networks.

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ARYANTA, DWI. "Analisis Kinerja Subscriber Station WiMAX di Urban Area Bandung." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 1, no. 2 (July 1, 2013): 128. http://dx.doi.org/10.26760/elkomika.v1i2.128.

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ABSTRAKTeknologi komunikasi wireless semakin pesat mengalami perkembangan. WiMAX merupakan suatu teknologi broadband yang didukung oleh standar IEEE 802.16d (802.16-2004) yang mampu memberikan layanan data berkecepatan tinggi hingga 75 Mbps dalam radius maksimal 40-50 km pada bandwidth 20 MHz. Alokasi frekuensi yang dipakai Indonesia untuk jaringan WiMAX ini ialah 3,3 – 3,4 GHz. Penelitian ini dilakukan dengan melakukan proses pengukuran kinerja perangkat radio WiMAX yaitu HiMax 331-SS. Proses pengukuran dilakukan antara CPE dan base station dengan antenna sektoral 1200 pada ketinggian 45 m. Lokasi pengukuran dilakukan di beberapa area kota Bandung yang telah ditentukan sebelumnya. Hasil pengukuran memperlihatkan nilai CINR tertinggi adalah 31 dB dengan modulasi 64 QAM – ¾ dan terendah nilai 10 dB dengan modulasi BPSK 1/2. Nilai RSSI tertinggi -54 dBm berada dan nilai RSSI terendah -89 dBm. Nilai throughput tertinggi untuk layanan streaming video sebesar 1000,8 kbps (downlink) dengan modulasi 64 QAM – ¾. Nilai delay terendah sebesar 56,247 ms pada kondisi LOS dan tertinggi sebesar 139,5 ms pada kondisi NLOS. Nilai terbesar packet loss sebesar 20% yaitu pada lokasi pengukuran terjauh 14,3 km.Kata Kunci: delay, packet loss, RSSI, CINR, throughput, CPE, WiMAX . ABSTRACTWireless communication technologies have evolved more rapidly. WiMAX is a broadband technology that is supported by the IEEE standard 802.16-2004/d which is able to provide high speed data services of up to 75 Mbps within a radius of 40-50 km at a maximum bandwidth of 20 MHz. Indonesia frequency allocation used for the WiMAX network is 3.3 to 3.4 GHz. This study was conducted with the performance measurement process that is Himax 331 WiMAX radio - SS. Process measurement is made between the CPE and base station sector antennas at a height of 45 m in 1200. Locations measurements performed in several areas of Bandung predetermined. The measurement results show the highest CINR value is 31 dB with 64 QAM modulation - ¾ and the lowest value of 10 dB with BPSK modulation half. The highest RSSI value of -54 dBm being the lowest and -89 dBm RSSI value. The highest throughput for streaming video services by 1000.8 kbps ( downlink ) with 64 QAM modulation - ¾. The lowest value was 56.247 ms delay in LOS conditions and the highest was 139.5 ms in NLOS conditions. The greatest value by 20 % packet loss is the farthest measurement locations 14.3 km.Keywords: delay, packet loss, RSSI, CINR, throughput, CPE, WiMAX .

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Abbas, Muthanna Jaafar, and Abeer Abd Al Hameed Mahmood. "Efficiency and effectiveness video on demand over worldwide interoperability for microwave access." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 3 (June 1, 2019): 1919. http://dx.doi.org/10.11591/ijece.v9i3.pp1919-1923.

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<p>(WiMAX) is another solution for readiness broadband networks inside the region, covered or not, by alternative technologies like (ADSL) or cable through this paper by deploying many mobility patterns such as static, random and path for Video on Demand (VoD) over (WiMAX) Network. The performance of varied (QPSK) and (QAM) modulation techniques, by applying the (OPNET) simulator version 17.5. This work is finished in terms of the transmitted traffic and received traffic. Simulation result indicates that once nodes are moving by (SVC) code schema in (WiMAX). The result is an effective and attainable overall performance of (QPSK) which is better than (QAM) modulation technique.</p>

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Lwin, Zaw Myo, and Thae Su Aye. "A Dual-band Circularly-polarized Printed Monopole Antenna for Wi-Fi and WiMAX Applications." Journal of Telecommunications and Information Technology 4, no. 2019 (December 30, 2019): 50–54. http://dx.doi.org/10.26636/jtit.2019.136719.

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This paper presents a rectangular-shaped printed monopole antenna with circular polarization for Wi-Fi (2.4–2.484 GHz) and WiMAX (3.3-3.7 GHz) bands. The antenna relies on asymmetric arrangement of the patch with respect to the microstrip feed, in order to generate circular polarization. Dual-band (Wi-Fi and WiMAX) operation is enabled by inserting a slit in the corner of the ground plane. Simulation results show a bandwidth increase of 15.9% (2.2–2.58 GHz) for Wi-Fi, and of 24.16% (3.13–3.99 GHz) for WiMAX applications. Furthermore, beamwidths at the axial ratio of 3 dB equal 48˚ and 51˚ for the x-z plane and y-z planes, respectively.

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M, Alzaabi, Ranjeeth K D, Alukaidey T, and Salman K. "Security Algorithms for WIMAX." International Journal of Network Security & Its Applications 5, no. 3 (May 31, 2013): 31–44. http://dx.doi.org/10.5121/ijnsa.2013.5304.

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Robinson, Teri. "WiMAX to the world?" netWorker 9, no. 4 (December 2005): 28–34. http://dx.doi.org/10.1145/1103940.1103942.

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Etemad, Kamran, and Ming Lai. "Mobile WiMAX [Guest Editorial]." IEEE Communications Magazine 47, no. 6 (June 2009): 82–83. http://dx.doi.org/10.1109/mcom.2009.5116804.

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Anderson, Mark. "WiMax for smart grids." IEEE Spectrum 47, no. 7 (July 2010): 14. http://dx.doi.org/10.1109/mspec.2010.5490999.

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Blaschke, V., C. Kloeck, J. Weiss, T. Renk, and F. K. Jondral. "Opportunistic WiMAX–GSM coexistence." IET Communications 2, no. 6 (2008): 837. http://dx.doi.org/10.1049/iet-com:20070487.

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Hwang, Ren-Hung, Wu-Hsiao Hsu, and Whai-En Chen. "Editorial: WiMAX integrated communications." IET Communications 4, no. 9 (2010): 1037. http://dx.doi.org/10.1049/iet-com.2010.9049.

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