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Journal articles on the topic 'Broadband and LTE'

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Author: Grafiati

Published: 14 March 2023

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1

WAHYUDIN, ADE, MUNTAQO ALFIN AMANAF, and ITA KUSMIASIH RATNASARI. "Perancangan dan Analisis LTE Advanced 850 Mhz untuk Meningkatkan Penetrasi Mobile Broadband di Indonesia." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 7, no. 1 (January 24, 2019): 57. http://dx.doi.org/10.26760/elkomika.v7i1.57.

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ABSTRAKLayanan mobile broadband LTE telah berkembang di Indonesia, namun penyebarannya belum merata. Selain itu, sumber daya frekuensi semakin terbatas seiring dengan meningkatnya trafik layanan broadband. Maka untuk mengatasi hal tersebut, spektrum frekuensi 850 MHz dapat diterapkan pada teknologi LTE advance untuk meningkatkan penetrasi mobile broadband. Maka, untuk mengukur tingkat penetrasi, sehingga dilakukan perancangan LTE Advance 850 MHz yang dibandingkan dengan LTE 1800 MHz eksisting berdasarkan pedekatan cakupan dan kapasitas jaringan. Perhitungan dan simulasi menghasilkan peningkatan penetrasi cakupan wilayah hingga 65% ketika menerapkan LTE Advanced 850 MHz. Sedangkan pendekatan kapasitas, pada parameter active user, jumlah connected user pada frekuensi 850 MHz mencapai 98% jauh dibandingkan frekuensi 1800 Mhz yang mencapai 91%, serta kualitas sinyal RSRP meningkat 37%-46%Kata kunci: LTE Advanced, 850MHz, Effective Throughput, Active User, Penetrasi, Broadband ABSTRACTLTE mobile broadband services is growing rapidly in Indonesia, however the deployment does not spread evenly, especially in remote area. Moreover, resource of frequency spectrum is limited because of the growth of broadband traffic. Thus, frequency spectrum 850 MHz can be implemented for LTE Advanced to increase mobile broadband penetration. So, to measure LTE penetration level, LTE Advanced 850 MHz design is compared to the existing LTE 1800 MHz by coverage and capacity approachment. According to calculation and simulation, coverage penetration increase up to 65% as LTE Advanecd 850 MHz implemetation. While, the connected user of LTE 850 MHz reach 98% when compared to LTE Advanced 1800 MHz that only reach up to 91% and also signal quality increase up to 37%-46%.Keywords: LTE Advanced, 850MHz, Effective throughput, Active user, Penetration, Broadband

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2

Astely, D., E. Dahlman, A. Furuskar, Y. Jading, M. Lindstrom, and S. Parkvall. "LTE: the evolution of mobile broadband." IEEE Communications Magazine 47, no. 4 (April 2009): 44–51. http://dx.doi.org/10.1109/mcom.2009.4907406.

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Chaudhry, Aizaz U., and Roshdy H. M. Hafez. "LMR and LTE for Public Safety in 700 MHz Spectrum." Wireless Communications and Mobile Computing 2019 (June 10, 2019): 1–17. http://dx.doi.org/10.1155/2019/7810546.

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This paper presents a concise overview of current public safety communication networks known as LMR (Land Mobile Radio) and emerging LTE- (Long-Term Evolution-) based broadband public safety networks to be deployed in the 700 MHz band. A broadband nationwide network for public safety based on LTE is inevitable where shared or dedicated types of LTE-based public safety networks are possible. Current LTE services do not meet mission-critical requirements and several enhancements have been defined by 3GPP to address this in Releases 12 and 13. First responders are familiar with LMR and consider it to be a reliable technology with massive deployment everywhere. Therefore, it is expected that LMR will continue to exist alongside any new LTE-based broadband public safety network. Recent LTE releases (particularly Release 15) addressed the LMR-LTE interoperability issue and described comprehensive interworking facilities. New and upcoming features and services of LTE in Releases 14 and 15, such as mission-critical data, mission-critical video, and aerial user equipments, are also directly applicable to public safety. The paper endeavours to provide a quick yet meaningful review of all these issues. It also offers a look ahead at the new and rapidly advancing virtualization technologies, such as software-defined radio access network, and radio access network slicing, as enablers for future public safety networks.

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Parikh, Jolly, and Anuradha Basu. "LTE Advanced The 4G Mobile Broadband Technology." International Journal of Computer Applications 13, no. 5 (January 12, 2011): 17–21. http://dx.doi.org/10.5120/1776-2449.

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Kumar, Amit, Jyotsna Sengupta, and Yun-fei Liu. "3GPP LTE: The Future of Mobile Broadband." Wireless Personal Communications 62, no. 3 (July 20, 2010): 671–86. http://dx.doi.org/10.1007/s11277-010-0088-3.

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ARYANTA, DWI. "Analisis Penggunaan Frequency Band 400 MHz dan 700 MHz untuk Layanan Broadband PPDR di Indonesia." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 6, no. 1 (April 23, 2018): 35. http://dx.doi.org/10.26760/elkomika.v6i1.35.

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ABSTRAKLayanan komunikasi Public Protection and Disaster Relief (PPDR) di Indonesia saat ini bekerja pada frequency band 400 MHz melalui teknologi narrowband. Semakin beragamnya layanan dan kebutuhan informasi membutuhkan pengembangan ke arah penerapan teknologi broadband. Adanya wacana Analog Switch Off (ASO), memungkinan frequency band 700 MHz dapat dimanfaatkan layanan komunikasi PPDR dengan penerapan teknologi LTE. Melalui kajian penggunaan frequency band 400 MHz dan 700 MHz, layanan broadband PPDR kejadian PP1 membutuhkan lebar band sebesar 10 MHz untuk baik pada arah uplink maupun downlink. Jumlah sel yang diperlukan pada penggunaan frequency band 400 MHz adalah 6482 sel pada tahun 2017 dan meningkat menjadi 6744 sel pada tahun 2021, sedangkan frequency band 700 MHz dari 12901 sel menjadi 13510 sel.Kata kunci: PPDR, broadband, ASO, PP1, LTE ABSTRACTThe Public Protection and Disaster Relief (PPDR) communication service in Indonesia is currently working on a 400 MHz frequency band through narrowband technology. Increasingly diverse services and information needs require development towards the application of broadband technology. The discourse of Analog Switch Off (ASO), allows the 700 MHz frequency band can be utilized PPDR communication services with the application of LTE technology. Through the study of the use of 400 MHz and 700 MHz frequency bands, PPDR broadband service incident PP1 requires bandwidth of 10 MHz for both uplink and downlink. The number of cells required on the use of the 400 MHz frequency band is 6482 cells by 2017 and increases to 6744 cells by 2021, while the 700 MHz frequency band from 12901 cells becomes 13510 cells.Keywords: PPDR, broadband, ASO, PP1, LTE

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7

Espinoza, David, and David Reed. "Wireless technologies and policies for connecting rural areas in emerging countries: a case study in rural Peru." Digital Policy, Regulation and Governance 20, no. 5 (August 13, 2018): 479–511. http://dx.doi.org/10.1108/dprg-03-2018-0009.

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Purpose This paper aims to compare the costs of deploying different wireless terrestrial broadband technologies in the Andes and Amazon Regions of Peru. These areas are representatives of different and challenging geographic regions throughout the globe that currently are severely underserved or unserved for vital broadband services necessary to bridge the “Digital Divide”. Design/methodology/approach The broadband technologies studied include Wi-Fi, Worldwide Interoperability for Microwave Access (WiMAX), long term evolution (LTE), TVWS and new stratospheric platforms (super-pressure balloons). This study conducts a technical analysis (design and simulation) of wireless broadband networks, and a bottom-up engineering cost analysis to estimate and compare the deployment and operating costs of the networks over a 10-year period. The analysis also identifies potential regulatory barriers to deployment associated with spectrum allocation licenses and overbooking requirements intended to improve quality of service. Findings Comparison of the capital and operating expenses of these options over a 10-year period finds that LTE and Wi-Fi can be the lowest cost alternatives, though significantly, stratospheric balloons have the lowest initial costs for the first few years and can factor as a low-cost broadband catalyst early in deployment. Finally, the lowest cost technology broadband roadmap for the 10-year period is presented, which includes using stratospheric balloons (carrying micro-LTE base stations) for the first years and deploying complementary terrestrial LTE networks for the rest of the 10-year period. Originality/value This study presents detailed technical and engineering cost analysis results of wireless access network deployments, including advanced wireless technologies and new unmanned aerial systems, to expand broadband services to rural areas in mountainous (Andes Region) and rainforest (Amazon Region) geographies to reduce the digital divide in emerging countries. Results aim to aid governments, regulators, internet service providers (incumbents and competitive) and content providers to assess current alternatives to expand broadband service in these rural areas.

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BRISO-RODRÍGUEZ, César, Carlos F. LÓPEZ, Jean R.O. FERNÁNDEZ, Sergio PÉREZ, Drasko DRASKOVIC, Jaime CALLE-SÁNCHEZ, Mariano MOLINA-GARCIA, et al. "Broadband Access in Complex Environments: LTE on Railway." IEICE Transactions on Communications E97.B, no. 8 (2014): 1514–27. http://dx.doi.org/10.1587/transcom.e97.b.1514.

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S, Pradeep. "A Novel HWRR-SJF Scheduling Algorithm for Optimal Performance Improvement in LTE System." International Journal of Engineering Education 1, no. 1 (June 15, 2019): 1–8. http://dx.doi.org/10.14710/ijee.1.1.1-8.

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In currently, the revolution in a high-speed broadband network is the requirement and also endless demand for high data rate and mobility. To achieve above requirement, the 3rd Generation Partnership Project (3GPP) has been established the Long Time Evolution (LTE). LTE has established an improved LTE radio interface named LTE-Advanced (LTE-A) and it is a promising technology for providing broadband, mobile Internet access. But, better Quality of Service (QoS) to provide for customers is the main issue in LTE-A. To reduce the above issue, the packets should be utilized by using one of the most significant function of packet scheduling to upgrading system performance via determines the throughput performance. In existing scheme, the user with poor Channel Quality Indicator (CQI) has smaller throughput issue is not focused. In this paper, a Hybrid Weighted Round Robin with Shortest Job First (HWRR-SJF) Scheduling technique is proposed to enhance efficient throughput and fairness in LTE system for stationary and mobile users. In this proposed scheduling, to schedule users according to a different criterion like fairness and CQI. HWRR-SJF Scheduling has been proposed for scheduling of the users and it produces increased throughput for various SNR values simulated alongside Pedestrian and Vehicular moving models. The proposed method also uses a 4G-LTE filter or Digital Dividend (DD) in order to align the incoming signal. The digital dividend is used to remove white spaces, which refer to frequencies assigned to a broadcasting service but not used locally. The proposed model is very effective for users in terms of the performance metrics like packet loss, throughput, packet delay, spectral efficiency, fairness and it has been verified through MATLAB simulations.

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de C. Neto, José M., Sildolfo F. G. Neto, Pedro M. de Santana, and Vicente A. de Sousa. "Multi-Cell LTE-U/Wi-Fi Coexistence Evaluation Using a Reinforcement Learning Framework." Sensors 20, no. 7 (March 27, 2020): 1855. http://dx.doi.org/10.3390/s20071855.

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Cellular broadband Internet of Things (IoT) applications are expected to keep growing year-by-year, generating demands from high throughput services. Since some of these applications are deployed over licensed mobile networks, as long term evolution (LTE), one already common problem is faced: the scarcity of licensed spectrum to cope with the increasing demand for data rate. The LTE-Unlicensed (LTE-U) forum, aiming to tackle this problem, proposed LTE-U to operate in the 5 GHz unlicensed spectrum. However, Wi-Fi is already the consolidated technology operating in this portion of the spectrum, besides the fact that new technologies for unlicensed band need mechanisms to promote fair coexistence with the legacy ones. In this work, we extend the literature by analyzing a multi-cell LTE-U/Wi-Fi coexistence scenario, with a high interference profile and data rates targeting a cellular broadband IoT deployment. Then, we propose a centralized, coordinated reinforcement learning framework to improve LTE-U/Wi-Fi aggregate data rates. The added value of the proposed solution is assessed by a ns-3 simulator, showing improvements not only in the overall system data rate but also in average user data rate, even with the high interference of a multi-cell environment.

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Ferrus, Ramon, and Oriol Sallent. "Extending the LTE\/LTE-A Business Case: Mission- and Business-Critical Mobile Broadband Communications." IEEE Vehicular Technology Magazine 9, no. 3 (September 2014): 47–55. http://dx.doi.org/10.1109/mvt.2014.2333695.

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Hakim, Teten Dian. "Strategi Alternatif Manajemen Spektrum Dan Penataan Alokasi Pita Frekuensi 1800 MHz Untuk Penerapan Teknologi LTE." Jurnal Telekomunikasi dan Komputer 5, no. 1 (February 27, 2017): 45. http://dx.doi.org/10.22441/incomtech.v5i1.1133.

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Trafik pengguna mobile data untuk layanan akses internet senantiasa mengalami peningkatan dari tahun ke tahun terutama untuk penggunaan layanan mobile broadband dibanding dengan layanan fixed broadband. Kenaikan trafik mobile broadband secara eksponensial ini dipicu dengan munculnya berbagai macam aplikasi, android, jejaring sosial dan media content yang ditambah lagi dengan pertumbuhan berbagai macam perangkat smartphone, tablet, dan mobile PC yang menawarkan beraneka ragam fitur dan teknologi terkini. Teknologi LTE (Long Term Evolution) yang di-standarisasi oleh 3GPP (Third Generation Partnership Project) sebagai organisasi standar internasional merupakan teknologi yang memberikan kecepatan data dan kapasitas yang besar. Dengan akses DL 100 Mbps dan UL 50 Mbps untuk standar teknologi LTE release 8. Sehingga menjadi salah satu solusi untuk mengatasi kenaikan trafik dari pengguna layanan mobile broadband. Dengan menggunakan metodologi dalam tahapan-tahapan pada proses RIA (Regulatory Impact Analysis), hal ini digunakan untuk memilih dan menentukan stategi alternatif tool spectrum management yang dipergunakan dan juga opsi refarming yang paling efektif termasuk dampak dari setiap masing-masing opsi tersebut. Metoda pendekatan voluntary spectrum redeployment dan penerapan netral teknologi yang dilakukan secara transparan dan terbuka melalui konsultasi publik dengan melibatkan stakeholder merupakan strategi alternatif spectrum management yang bisa diterapkan untuk melakukan proses refarming di pita frekuensi 1800 MHz di Indoensia. Dan instrumen spectrum management ini juga digunakan untuk melakukan penataan menyeluruh pita frekuensi 1800 MHz sehingga didapatkan jumlah total lebar bandwidth yang ideal dan kanal alokasi frekuensi yang berdekatan atau contiguous sehingga dapat digunakan dalam penerapan teknologi LTE.

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13

Habaebi, Mohamed Hadi, and T. Padmapriya. "LTE Relocation towards Broadband PPDR System in TETRA Network." International Innovative Research Journal of Engineering and Technology 4, no. 4 (June 30, 2019): EC—29—EC—38. http://dx.doi.org/10.32595/iirjet.org/v4i4.2019.92.

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14

Ghosh, Amitava, Rapeepat Ratasuk, Bishwarup Mondal, Nitin Mangalvedhe, and Tim Thomas. "LTE-advanced: next-generation wireless broadband technology [Invited Paper." IEEE Wireless Communications 17, no. 3 (June 2010): 10–22. http://dx.doi.org/10.1109/mwc.2010.5490974.

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15

Chang, Shih-Hsun, and Wen-Jiao Liao. "A Broadband LTE/WWAN Antenna Design for Tablet PC." IEEE Transactions on Antennas and Propagation 60, no. 9 (September 2012): 4354–59. http://dx.doi.org/10.1109/tap.2012.2207075.

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16

Elfergani, Issa Tamer E., Abubakar Sadiq Hussaini, Jonathan Rodriguez, Ammar H. Ali, Chan H. See, and Raed A. Abd-Alhameed. "A COMPACT AND BROADBAND BALUN DESIGN FOR LTE APPLICATIONS." Progress In Electromagnetics Research C 67 (2016): 85–95. http://dx.doi.org/10.2528/pierc16071805.

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17

Fang, Yanfeng, and Yijiang Zhang. "A broadband 23.1 ∼ 27.2 GHz doherty power amplifier with peak output power of 24.3 dBm." Circuit World 46, no. 1 (September 23, 2019): 1–5. http://dx.doi.org/10.1108/cw-05-2019-0048.

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Purpose This paper aims to implement a new high output power fully integrated 23.1 to 27.2 GHz gallium arsenide heterojunction bipolar transistor power amplifier (PA) to meet the stringent linearity requirements of LTE systems. Design/methodology/approach The direct input power dividing technique is used on the chip. Broadband input and output matching techniques are used for broadband Doherty operation. Findings The PA achieves a small-signal gain of 22.8 dB at 25.1 GHz and a saturated output power of 24.3 dBm at 25.1 GHz with a maximum power added efficiency of 31.7%. The PA occupies 1.56 mm2 (including pads) and consumes a maximum current of 79.91 mA from a 9 V supply. Originality/value In this paper, the author proposed a novel direct input dividing technique with broadband matching circuits using a low Q output matching technique, and demonstrated a fully-integrated Doherty PA across frequencies of 23.1∼27.2 GHz for long term evolution-license auxiliary access (LTE-LAA) handset applications.

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Tampouratzis, Manolis G., Demosthenes Vouyioukas, Dimitrios Stratakis, and Traianos Yioultsis. "Use Ultra-Wideband Discone Rectenna for Broadband RF Energy Harvesting Applications." Technologies 8, no. 2 (April 23, 2020): 21. http://dx.doi.org/10.3390/technologies8020021.

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In this study, a broadband Radio Frequency (RF) energy harvester implementation is presented. The system uses a broadband discone antenna, which can operate efficiently in a broad frequency spectrum, including LTE, DCS 1800 and UMTS 2100 cellular frequency bands. The system is able to harvest energy from various electromagnetic field sources, thus has the potential to efficiently charge a storage energy element in a short time. The prototype broadband RF energy harvester was tested in the laboratory and also in a typical urban environment.

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Frank, Ibikunle, Dike Ike, Ajayi Jimi, and Onasoga Kayode. "MULTIPLE-ACCESS TECHNOLOGY OF CHOICE IN 3GPP LTE." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 6, no. 2 (May 20, 2013): 321–28. http://dx.doi.org/10.24297/ijct.v6i2.3497.

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Third-Generation Partnership Project (3GPP) standardizes an Evolved UMTS Terrestrial Radio Access Network (EUTRAN)as air interface in its release 8 LTE. Orthogonal Frequency Division Multiple Access(OFDMA) and Single Carrier-Frequency Division Multiple Access(SC-FDMA)are key technologies for the air interface of mobile broadband systems.It isÂ evident that mobile broadband access technologies are reaching a commonality in the air interface and networkingÂ architecture; they are being converged to an IP-based network architecture with OFDMA based air interface technology.Â The air interface of E-UTRAN is based on OFDMA in downlink and SC-FDMA in the uplink, making it possible to efficientlÂ utilize bandwidth due to the orthogonally between sub-carriers and by assigning subsets of sub-carriers to individual usersÂ which allows for simultaneous data rate transmission from several users and differentiated quality of service for each user.Â In this paper, wehighlight the technologies behindOFDMA and SC-FDMA and also carry out performance comparison ofÂ the two air interface technologies. We brieflydescribe the 3GPP LTE standard, and its implementation using OFDMA andÂ SC-FDMA technology.

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Dai, Jian Mei, Hua Fang Geng, and Zuo Xue Liu. "The Application Research on the TD-LTE Technology in Military." Applied Mechanics and Materials 631-632 (September 2014): 843–46. http://dx.doi.org/10.4028/www.scientific.net/amm.631-632.843.

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TD-LTE technology can be introduced to improve the performance of military wireless communication system greatly for its better capability of broadband transmission while existing military wireless communication network cannot meet with the increase and further requirements of military task types. The technical characteristics and advantages of TD-LTE are analyzed, the problem of security, anti-jamming and mobility which are to be solved if TD-LTE technology applied in military are mainly studied, and the technical solutions are given.

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21

Song, Jae-Yeol, Kyung-Hoon Lee, and Seong-Mo Park. "0.11μm CMOS Low Power Broadband LNA design for 3G/4G LTE Environment." Journal of the Korea institute of electronic communication sciences 9, no. 9 (September 30, 2014): 1027–34. http://dx.doi.org/10.13067/jkiecs.2014.9.9.1027.

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22

Ariansyah, Kasmad, and Chaikal Nuryakin. "FAKTOR-FAKTOR SOSIAL EKONOMI PENENTU ADOPSI LONG TERM EVOLUTION (LTE) DI INDONESIA." Jurnal Sosioteknologi 18, no. 1 (May 1, 2019): 29–42. http://dx.doi.org/10.5614/sostek.itbj.2019.18.1.3.

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Penelitian-penelitian sebelumnya telah membuktikan dampak positif adopsi layanan pitalebar terhadap perubahan sosial dan pertumbuhan ekonomi. Hal tersebut mendorong pemerintah Indonesia untuk menyusun dan menetapkan rencana pitalebar Indonesia (RPI) yang berisi panduan dan arah pembangunan pitalebar nasional. Namun demikian, upaya-upaya yang dilakukan lebih banyak kepada strategi pencapaian dari sisi suplai, sedangkan upaya untuk meningkatkan dan memetakan permintaan kurang mendapat perhatian. Oleh sebab itu, penelitian ini bertujuan untuk mengetahui faktor-faktor sosial ekonomi yang dapat menjelaskan adopsi LTE, sebagai salah satu teknologi pitalebar, di Indonesia. Penelitian ini juga menyertakan variabel konsumsi paket data dan tipe berlangganan sebagai variabel penjelas ke dalam model yang diusulkan. Pengumpulan data dilakukan melalui survei yang dilaksanakan Pusat Penelitian dan Pengembangan Sumber Daya, Perangkat, dan Penyelanggaraan Pos dan Informatika, Kementerian Komunikasi dan Informatika pada tahun 2016. Kami menggunakan analisis statistik deskriptif untuk menggambarkan profil responden dan analisis logistik biner untuk menguji signifikansi statistik perbedaan sosial ekonomi dalam kaitannya dengan adopsi layanan berbasis teknologi LTE di Indonesia. Hasil analisis menunjukkan jenis kelamin, tingkat pendidikan, tingkat perekonomian, dan tipe berlangganan memiliki peran penting dalam menjelaskan adopsi layanan pitalebar bergerak, khususnya adopsi layanan berbasis teknologi LTE.Â Â Some previous studies have found that there are positive impacts of the broadband adoption on social change and economic growth. Those findings have prompted the Indonesian government to develop and stipulate the Indonesian Broadband Plan which contains guidelines and directions for national broadband development. However, the efforts are more devoted to the achievement strategy of supply side. Meanwhile, demand side gets insufficient attention. This paper seeks to fulfill this gap by investigating the socioeconomic attributes that explain the LTE adoption, as one of the broadband technologies, among Indonesian society. We also include monthly data consumption and subscription type as explanatory variables to the proposed model. Data collection was carried out through a survey by the Research and Development Center for Post and Informatics, Ministry of Communication and Information Technology in 2016. We utilize descriptive statistical analysis to describe respondentsâ€™ profile, and binary logistic regression analysis to examine the statistical significance of independent variables against the dependent variable. The study confirmed that gender, education, economic level, and subscription type have a significant role in explaining the adoption of the new emerging mobile broadband service, especially the adoption of LTE based service in Indonesia.

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Kumaran, M. "Broadband Antenna for LTE Operation: A Novel Design Approach Using Meandered Strip Line." International Journal of Advances in Applied Sciences 4, no. 2 (June 1, 2015): 50. http://dx.doi.org/10.11591/ijaas.v4.i2.pp50-54.

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The broadband performance of an antenna for the LTE operation is presented in this paper. A novel design approach used to design the antenna using meandered strip line can be treated as a simplest and a cost effective approach. Due to the requirement of the bandwidth hungry applications, there is a smooth migration of the mobile technology from the existing services like GSM; UMTS to LTE is in progress. Thus a compact radiating structure can be preferred in many applications to improve the throughput performance of the multimedia service. The proposed antenna operates in the LTE 42 band. It shows the broadband performance centred at 3533 MHz with 112 MHz bandwidth. Bandwidth performance at this frequency is also found to be well suited to operate in the downlink frequency band at LTE 22. To determine the optimal performance of the antenna, a suitable threshold (S<sub>11 </sub>< 10 dB) is imposed. Gain and directivity of the antenna are 6.6 dB and 7.8 dBi respectively. Efficiency is achieved to 74%. Radiation pattern shows the best performance of the antenna. With the best performance achieved at this frequency, the antenna is advantageous to exploit in small cell coverage, LTE Hotspot and Indoor enhancement solutions. CST Microwave Studio Suite software is used to design the antenna. An ordinary 50 Ω transmission line is fed to the antenna. Other antenana parameters are also discussed for its performance.

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Luo, Qiuqiang, Meng Li, Jiaming Xia, and Hao Zou. "A Broadband Dual-Polarized Antenna for LTE Base Stations Applications." International Journal of Computer Applications Technology and Research 8, no. 7 (June 19, 2019): 272–75. http://dx.doi.org/10.7753/ijcatr0807.1001.

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DAHLMAN, Erik, Ylva JADING, Stefan PARKVALL, and Hideshi MURAI. "3G Radio Access Evolution — HSPA and LTE for Mobile Broadband —." IEICE Transactions on Communications E92-B, no. 5 (2009): 1432–40. http://dx.doi.org/10.1587/transcom.e92.b.1432.

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Mopidevi, H., D. Rodrigo, O. Kaynar, L. Jofre, and B. A. Cetiner. "Compact and Broadband Antenna for LTE and Public Safety Applications." IEEE Antennas and Wireless Propagation Letters 10 (2011): 1224–27. http://dx.doi.org/10.1109/lawp.2011.2174023.

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27

Peyrusse, O. "A superconfiguration model for broadband spectroscopy of non-LTE plasmas." Journal of Physics B: Atomic, Molecular and Optical Physics 33, no. 20 (September 20, 2000): 4303–21. http://dx.doi.org/10.1088/0953-4075/33/20/308.

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Thiyagarajan, Krishnan, Thangavelu Kesavamurthy, Karuppaiah Alagar Banupriya, and Raja Sindhuja. "Miniaturised broadband branch line coupler for WiMAX and LTE applications." International Journal of Wireless and Mobile Computing 8, no. 1 (2015): 66. http://dx.doi.org/10.1504/ijwmc.2015.066748.

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Wu, Beijun, and Quanyuan Feng. "A NOVEL COMPACT BROADBAND ANTENNA FOR LTE/WLAN/WIMAX APPLICATIONS." Progress In Electromagnetics Research Letters 59 (2016): 129–35. http://dx.doi.org/10.2528/pierl16030403.

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30

Chang, Morris J., Zakhia Abichar, and Chau-Yun Hsu. "WiMAX or LTE: Who will Lead the Broadband Mobile Internet?" IT Professional 12, no. 3 (May 2010): 26–32. http://dx.doi.org/10.1109/mitp.2010.47.

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31

Wang, Ben, Feng Jie Sun, Meng Yang, Xiang Zhen Li, and Ling Kang Zeng. "Application Research on TD-LTE Technology in Communication System of Power Distribution and Utilization Network." Advanced Materials Research 614-615 (December 2012): 1666–71. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.1666.

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Firstly the current situation and demand of power wireless communication was analyzed, and the technical characteristics of a variety of wireless communication applicated in the area of distribution were summarized, then, Considering strict requirement for QoS, high data rate, mass uplink data, and a large number of users, a solution based on TD-LTE Technology is purposed for 230MHz broadband wireless transmission. Therefore, MIMO, OFDMA and Carrier Aggregation Technology are all improved to realize the broadband wireless transmission of power communication under the condition of discrete, narrowband carrier.

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Parvez, Imtiaz, M. G. S. Sriyananda, İsmail Güvenç, Mehdi Bennis, and Arif Sarwat. "CBRS Spectrum Sharing between LTE-U and WiFi: A Multiarmed Bandit Approach." Mobile Information Systems 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/5909801.

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The surge of mobile devices such as smartphone and tablets requires additional capacity. To achieve ubiquitous and high data rate Internet connectivity, effective spectrum sharing and utilization of the wireless spectrum carry critical importance. In this paper, we consider the use of unlicensed LTE (LTE-U) technology in the 3.5 GHz Citizens Broadband Radio Service (CBRS) band and develop a multiarmed bandit (MAB) based spectrum sharing technique for a smooth coexistence with WiFi. In particular, we consider LTE-U to operate as a General Authorized Access (GAA) user; hereby MAB is used to adaptively optimize the transmission duty cycle of LTE-U transmissions. Additionally, we incorporate downlink power control which yields a high energy efficiency and interference suppression. Simulation results demonstrate a significant improvement in the aggregate capacity (approximately 33%) and cell-edge throughput of coexisting LTE-U and WiFi networks for different base station densities and user densities.

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Wang, Bin, Congcong Zhu, Chenyang Liao, Wei Luo, Bo Yin, and Ping Wang. "Broadband dual-polarized dipole antenna for LTE/5G base station applications." Electromagnetics 40, no. 1 (November 20, 2019): 13–22. http://dx.doi.org/10.1080/02726343.2019.1695087.

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Vishnevskiy, V. M., K. E. Samouylov, and N. V. Yarkina. "Mathematical Model of LTE Cells with Machine-Type and Broadband Communications." Automation and Remote Control 81, no. 4 (April 2020): 622–36. http://dx.doi.org/10.1134/s0005117920040050.

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Huang, He, Ying Liu, and Shuxi Gong. "Broadband Dual-Polarized Omnidirectional Antenna for 2G/3G/LTE/WiFi Applications." IEEE Antennas and Wireless Propagation Letters 15 (2016): 576–79. http://dx.doi.org/10.1109/lawp.2015.2458981.

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Wu, Rui, and Qing‐Xin Chu. "Multi‐mode broadband antenna for 2G/3G/LTE/5G wireless communication." Electronics Letters 54, no. 10 (May 2018): 614–16. http://dx.doi.org/10.1049/el.2018.0491.

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Cui, YueHui, RongLin Li, and Peng Wang. "A Novel Broadband Planar Antenna for 2G/3G/LTE Base Stations." IEEE Transactions on Antennas and Propagation 61, no. 5 (May 2013): 2767–74. http://dx.doi.org/10.1109/tap.2013.2244837.

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Yu, Yiqiang, Hongmei Zhang, and Zhizhang Chen. "A BROADBAND DUAL-POLARIZED OMNIDIRECTIONAL MIMO ANTENNA FOR 4G LTE APPLICATIONS." Progress In Electromagnetics Research Letters 57 (2015): 91–96. http://dx.doi.org/10.2528/pierl15083102.

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Rao, Anil M., Andreas Weber, Sridhar Gollamudi, and Robert Soni. "LTE and HSPA+: Revolutionary and evolutionary solutions for global mobile broadband." Bell Labs Technical Journal 13, no. 4 (February 25, 2009): 7–34. http://dx.doi.org/10.1002/bltj.20334.

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Kuboye, Bamidele Moses. "Long Term Evolution (LTE) Network Evaluation in the South-West Region of Nigeria." European Journal of Engineering Research and Science 4, no. 3 (March 15, 2019): 86–92. http://dx.doi.org/10.24018/ejers.2019.4.3.1160.

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The LTE broadband evolved from an earlier Third Generation Partnership Project system which is known as the Universal Mobile Telecommunication System (UMTS), which evolved from the Global System for Mobile Communications (GSM). The network architecture of this system has been designed with the aim to support a packet-switched traffic with seamless mobility and great quality of service. The main goal of the LTE is to provide a high data rate with low latency and a packet optimized radio access technology that supports deployment of bandwidth. Hence, this study is based on the evaluation of the LTE network in the south-west region of Nigeria. This study evaluates the LTE network strength in the South-West region of Nigeria. Questionnaires were administered among users in these areas randomly. Thereafter, data were analyzed and research questions were answered from the analyzed results. The results showed that 9Mobile and MTN has the best quality of service of LTE network in South-West, Nigeria, also that the LTE network has not really been active in Osun and Ekiti states.

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Kuboye, Bamidele Moses. "Long Term Evolution (LTE) Network Evaluation in the South-West Region of Nigeria." European Journal of Engineering and Technology Research 4, no. 3 (March 15, 2019): 86–92. http://dx.doi.org/10.24018/ejeng.2019.4.3.1160.

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The LTE broadband evolved from an earlier Third Generation Partnership Project system which is known as the Universal Mobile Telecommunication System (UMTS), which evolved from the Global System for Mobile Communications (GSM). The network architecture of this system has been designed with the aim to support a packet-switched traffic with seamless mobility and great quality of service. The main goal of the LTE is to provide a high data rate with low latency and a packet optimized radio access technology that supports deployment of bandwidth. Hence, this study is based on the evaluation of the LTE network in the south-west region of Nigeria. This study evaluates the LTE network strength in the South-West region of Nigeria. Questionnaires were administered among users in these areas randomly. Thereafter, data were analyzed and research questions were answered from the analyzed results. The results showed that 9Mobile and MTN has the best quality of service of LTE network in South-West, Nigeria, also that the LTE network has not really been active in Osun and Ekiti states.

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Perov, Sergey Yu, and Olga V. Belaya. "Instrumental assessment of mobile communication base station electromagnetic field exposure." Russian Journal of Occupational Health and Industrial Ecology 60, no. 11 (December 3, 2020): 853–56. http://dx.doi.org/10.31089/1026-9428-2020-60-11-853-856.

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Introduction. Monitoring and ensuring safe operating conditions of modern base stations for occupational and general public exposure is relevant with the use of methods for measuring electromagnetic fields, which allow to assess the contribution of different sources to the overall level of the electromagnetic background, taking into account the dynamic features of base stations and the spectral electromagnetic characteristics. The aim of study is the levels of electromagnetic fields assessment from modern base stations using broadband and selective measurement methods, as well as the possibility of predicting the worst exposure conditions. Materials and methods. The levels of electromagnetic fields from base stations according to the LTE2600 standard were evaluated at the maximum transmission traffic (laboratory mearements) and at real variable traffic (field measurements). For broadband measurements, the power density (PD) was estimated, for selective measurements, the PD level in the LTE frequency channel (frequency-selective measurements) and the PD level of the reference signal (code-selective measurements) were evaluated. The theoretical maximum PD level was calculated from the maximum value of the reference signal. Results. When simulating the maximum intensity of data traffic, the PD level in the LTE channel was 94.51-101.39% of the calculated maximum value. According to field measurements, the values of electromagnetic field levels obtained from frequency-selective measurements in the LTE frequency channel were less than the corresponding values estimated from the results of broadband measurements, and were no more than 25% of the theoretical maximum. Conclusions. The use of selective approach and measurement methods made it possible to estimate the maximum possible contribution of a single source to the overall level of the electromagnetic background and to predict the worst conditions for human exposure.

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Ding, Jianwen, Lei Zhang, Jingya Yang, Bin Sun, and Jiying Huang. "Broadband Wireless Channel in Composite High-Speed Railway Scenario: Measurements, Simulation, and Analysis." Wireless Communications and Mobile Computing 2017 (2017): 1–15. http://dx.doi.org/10.1155/2017/2897636.

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The rapid development of high-speed railway (HSR) and train-ground communications with high reliability, safety, and capacity promotes the evolution of railway dedicated mobile communication systems from Global System for Mobile Communications-Railway (GSM-R) to Long Term Evolution-Railway (LTE-R). The main challenges for LTE-R network planning are the rapidly time-varying channel and high mobility, because HSR lines consist of a variety of complex terrains, especially the composite scenarios where tunnels, cuttings, and viaducts are connected together within a short distance. Existing researches mainly focus on the path loss and delay spread for the individual HSR scenarios. In this paper, the broadband measurements are performed using a channel sounder at 950 MHz and 2150 MHz in a typical HSR composite scenario. Based on the measurements, the pivotal characteristics are analyzed for path loss exponent, power delay profile, and tap delay line model. Then, the deterministic channel model in which the 3D ray-tracing algorithm is applied in the composite scenario is presented and validated by the measurement data. Based on the ray-tracing simulations, statistical analysis of channel characteristics in delay and Doppler domain is carried out for the HSR composite scenario. The research results can be useful for radio interface design and optimization of LTE-R system.

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He, Qing Su, Da Wei Huo, Jin Hong He, Yan Jiang Xiao, and Bin Yu. "Carrier Aggregation and its Application in 230MHz Power Industry Spectrum." Applied Mechanics and Materials 427-429 (September 2013): 1003–8. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.1003.

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Carrier aggregation technology is a key technology of LTE-Advanced,which is proposed by 3GPP organization as a 4G technology. This paper describes its application within 230MHz power industry existing authorized spectrum, aggregate the discrete narrowband, combine with some other technologies, such as OFDM, to build an innovative 230MHz power radio broadband communication system to achieve broadband transmission of power data. The laboratory theoretical simulation and pilot project verify that this application effectively take advantage of the power existing spectrum, can fully meet the bandwidth needs of power data transmission, presents a thought to solve the status of existing discrete authorized spectrum and its restriction on power radio data transmission.

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45

Madiawati, Hanny, and Asep Barnas Simanjuntak. "Desain dan Realisasi Antena Mikrostrip Patch Rectangular Array dengan Slit pada Frekuensi 2620-2690 MHz untuk Aplikasi LTE." Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik 19, no. 2 (December 31, 2020): 110–19. http://dx.doi.org/10.26874/jt.vol19no02.232.

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LTE (Long Term Evolution) adalah teknologi komunikasi wireless generasi keempat yang digunakan oleh mayoritas masyarakat. Untuk mendukung implementasi LTE ini dibutuhkan sebuah perangkat antena yang handal dan memiliki bandwidth yang lebar. Dalam beberapa tahun terakhir, permintaan untuk antena compact, low profile, dan broadband antena telah meningkat secara signifikan. Antena mikrotrsip merupakan jenis antena yang digunakan. Antena mikrostrip ini dapat dibuat lebih kecil dengan menggunakan teknik miniaturisasi, seperti memodifikasi geometri antena dengan menggunakan slot. Antena mikrostrip dengan slot memiliki potensi memiliki bandwidth yang lebar dan teknik array antena untuk meningkatkan gain yang menunjang untuk kebutuhan aplikasi LTE. Oleh sebab itu, tujuan dari penelitian ini adalah dilakukan desain dan realisasi antena mikrostrip array 4 patch dengan slot yang digunakan pada aplikasi LTE. Pada penelitian ini telah menghasilkan antena yang bekerja pada band frekuensi 2608-2701 MHz, bandwidth 93 MHz dan gain sebesar 7,24 dB. Antena ini pun mengalami peningkatan gain sebesar 4.826 dB dari single element dan mengalami reduksi antena sebesar 0,12%.

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Sirait, Fadli, Akhmad Wahyu Dani, Yuliza Yuliza, and Ulil Albab. "OPTIMIZATION IN QUALITY OF SERVICE FOR LTE NETWORK USING BANDWIDTH EXPANSION." SINERGI 23, no. 1 (February 27, 2019): 47. http://dx.doi.org/10.22441/sinergi.2019.1.007.

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QoS (Quality of Service) of LTE networks can bring the providers to provide broadband services with high performance to end user. Furthermore, the expected data rate transfer is up to 300 Mbit/s per user while the range of bandwidth varies from 1.4 MHz to 20 MHz. The network worked in 1800 MHz bands, 64 QAM modulation technique and used 10 MHz and 15 MHz channel bandwidth. There is a congestion problem for LTE network with 10 MHz channel bandwidth due to high utilization. The paper tries to analyze the QoS parameters, named Key Performance Indicators (KPI) for LTE Networks to solve the problem using bandwidth expansion. The KPIs parameter that is measured by drive test is accessibility, retainability, PRB downlink utilization, and user number. Based on the KPIs measurements results, it is showed that the proposed method to expand the bandwidth from 10 MHz to 15 MHz can avoid congestion problem and impact on improving the performance of LTE network.

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Cui, YueHui, XiaoNa Gao, and RongLin Li. "Broadband Vertically/Horizontally Dual-Polarized Antenna for Base Stations." International Journal of Antennas and Propagation 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/6912074.

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A broadband vertically/horizontally (V/H) dual-polarized antenna is proposed for mobile communication base stations. The antenna consists of two perpendicularly placed broadband planar antenna elements. By shaping the reflector for V/H dual-polarized antenna, a half-power beam width of 65±8° is achieved for both vertical and horizontal polarization. The V/H dual-polarized antenna has a bandwidth of 48% (1.7–2.75 GHz) for return loss >15 dB, an isolation of 30 dB, and an antenna gain of 9 dBi. An 8-element V/H dual-polarized antenna array is developed, which achieves a bandwidth of 45% (1.7–2.7 GHz) and an antenna gain of 16 dBi, suitable for GSM/UMTS/LTE base stations.

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Iskandar, Iskandar, I. Setyawan, and H. Nuraini. "Inter-cell Interference Management Technique for Multi-Cell LTE-A Network." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 5 (October 1, 2017): 2696. http://dx.doi.org/10.11591/ijece.v7i5.pp2696-2705.

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In modern cellular system such as LTE Advanced (LTE-A), frequency reuse scheme is targeted to be applied to fulfill the requirement of high capacity broadband access and high spectrum efficiency. But this kind of frequency planning may lead to the worse inter-cell interference (ICI) level experienced especially by a user located at the cell edge. Soft Frequency Reuse (SFR) is considered as an effective way to mitigate inter-cell interference and maintain capacity. We propose a power division SFR, known as multi level SFR technique to minimize ICI in a designed LTE-A network for sub-urban environment. Service area of LTE-A network was first developed to deploy particular number of eNB by using LTE network planning tools in the frequency of 1800 MHz with the use of SISO (Single Input Single Output) antennas. Coverage dimensioning and propagation consideration determine LTE-A parameters which were used in the simulation. Monte carlo simulation is executed to examine the performance of SFR for LTE-A downlink transmission to address different power ratio and traffic loads problem. Both performance of cell edge users and overall cell performance are evaluated in terms of CINR, BLER, and throughput. Performance with SFR is also compared with the classical frequency reuse one and three.

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Aryaguna, Priambada, and Iskandar Iskandar. "Demand Forecast of 700 MHz Frequency Spectrum for LTE Mobile Broadband Services." Buletin Pos dan Telekomunikasi 15, no. 2 (December 18, 2017): 77. http://dx.doi.org/10.17933/bpostel.2017.150202.

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Shi, Yanyan, Yue Fan, Yan Li, Lan Yang, and Meng Wang. "An Efficient Broadband Slotted Rectenna for Wireless Power Transfer at LTE Band." IEEE Transactions on Antennas and Propagation 67, no. 2 (February 2019): 814–22. http://dx.doi.org/10.1109/tap.2018.2882632.

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