Relevant bibliographies by topics / Multipath fading

Academic literature on the topic 'Multipath fading'

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Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Multipath fading"

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KRSTIĆ, DRAGANA, SUAD SULJOVIĆ, MIHAJLO STEFANOVIĆ, MUNEER MASADEH BANI YASSEIN, and DANIJELA ALEKSIĆ. "New Results and Applications about the Level Crossing Rate of SC Receiver output Signal in the Presence of Gamma Shadowing and k-μ or Rician Multipath Fading." WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS 20 (June 28, 2021): 118–27. http://dx.doi.org/10.37394/23201.2021.20.15.

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In this paper,the wireless communication system with dual SC receiver operating over shadowed multipath fading channel is considered. The multipath fadingis k-μor Rician.The received signal experiences the short term fading which is resulting in SC receiver envelope variation and Gamma long term fading resulting in SC receiver envelope power variation. The closed form expressions for joint probability density functions of SC receiver output signal envelope and their first derivative of SC receiver output signal envelope are calculated for both, k-μand Rician fading. These expressions are used for evaluation of average level crossing rate of SC receiver output signal envelopes. The numerical expressions are plotted to show the effect of Rician fading severity parameter and Gamma shadowing severity parameter on the average level crossing rate of SC receiver output signal envelope.
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Zhang, Ping Hua, Xiu Liang Huang, and Zhong Yue He. "Research of Anti-Multipath Interference Capability in Direct Sequence Spread Spectrum Communication System by Simulation." Advanced Materials Research 846-847 (November 2013): 592–95. http://dx.doi.org/10.4028/www.scientific.net/amr.846-847.592.

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The effects of multipath fading with time delay longer or shorter than one chip interval on DSSS system are mathematically and experimentally researched. Simulation results indicate that DSSS system can efficiently overcome multipath fading in multipath Rayleigh Fading channels. And the spreading gain is not the higher the better, it must be chosen reasonably.
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Gajanada, I. Gede Arya Gangga, Nyoman Pramaita, and I. Gusti Agung Komang Diafari Djuni Hartawan. "Design of Orthogonal Variable Spreading Factor (OVSF) Performance Simulation Program in Multipath Fading Channels." Journal of Electrical, Electronics and Informatics 4, no. 2 (August 31, 2020): 64. http://dx.doi.org/10.24843/jeei.2020.v04.i02.p05.

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The characteristics of wireless channel are determined by multipath propagation. The transmitted signal will be scattered so that it produces fading. Fading influenced by multipath component will cause delay spread which damages the signal. Thus, spread spectrum technology is used by using a bandwidth that is greater than the original signal. The objective of this study was to determine the effect of the number of multipath components on orthogonal variable spreading factor (OVSF) codes on multipath fading channels viewed from values and Bit Error Rate (BER) graphs versus Energy Bits per Noise (Eb/No). This study would compare the performance of OVSF code communication system on multipath channels by varying multipath components of 4, 8, 12, 16 and the length of OVSF codes used of 16, 8 and 4. The simulation results showed an increase in BER values when the number of multipath components was added. The more the number of multipath components used, the more the number of reflected signals that will interfere with the desired signal in the receiver. The length of the OVSF code influences the performance of the OVSF code on the multipath fading channel, because each code has a different processing gain value that is affected by the length of the code used
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Wang, Jin Peng, Qi Ming Zhu, Fan Cao, Ping Li, and Nian Yu Zou. "A Study on Turbo Codes and Rake Received Mixed Algorithm in Multipath Fading Environment." Applied Mechanics and Materials 321-324 (June 2013): 2877–82. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.2877.

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In this paper, a Turbo codes and Rake received mixed algorithm in multipath fading environment is proposed to solve the problems in signal reception in a fading environment of the mobile communication system. Compared to the traditional multi-path reception methods, the advantage of the algorithm can significantly improve system performance; reduce the system error rate by approximately 2.5dB. Moreover, the performance of the system will be improved a lot if the antenna power is equal. Firstly a mixed algorithm in AWGN channel and multipath fading channel is introduced and derived theoretically and then a computer simulation is carried out and the impact of various parameters on network performance is anglicized. The results show that the algorithm can effectively reduce the effects of multipath fading environment on the transmission power attenuation, lower bit error rate, and improve the effectiveness to resistance to multipath fading significantly.
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Njemčević, Pamela, Adriana Lipovac, and Vlatko Lipovac. "Improved Model for Estimation of Spatial Averaging Path Length." Wireless Communications and Mobile Computing 2018 (July 12, 2018): 1–13. http://dx.doi.org/10.1155/2018/4704218.

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In mobile communication systems, the transmitted RF signal is subject to mutually independent deterministic path loss and stochastic multipath and shadow fading. As at each spatial location mostly the composite signal samples are measured, their components are distinguished by averaging out the multipath-caused signal level variations, while preserving just the ones due to shadowing. The prerequisite for this is the appropriateness of the local area averaging path length that enables obtaining the local mean (composed of mean path loss and shadow fading) and the multipath fading as difference between the composite signal sample and the local mean. However, the so far reported analytical approaches to estimation of the averaging path length are based on considering either the multipath or just the shadow fading, with applicability limited to only specific topologies and frequencies. Therefore, in this paper, the most widely used Lee analytical method is generalized and improved by considering multipath and shadowing concurrently, so providing the general closed-form elementary-function based estimation of the optimal averaging path length as a function of common multipath and shadow fading parameters characterizing particular propagation environment. The model enables recommendations for the optimal averaging length for all propagation conditions facing the mobile receiver.
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Yu, Xiao Lei, Yin Shan Yu, Yu Yu Ji, and Dong Hua Wang. "Communication Performance of RFID System and Anti-Interference in the Multipath Rayleigh Fading Channel." Applied Mechanics and Materials 239-240 (December 2012): 1022–26. http://dx.doi.org/10.4028/www.scientific.net/amm.239-240.1022.

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With the communication environment of RFID system developing from near field communication to long distance communication, Rayleigh fading with Doppler frequency shift emerges from multipath effect between the readers and electronic tags. A systemic study was focused on modeling and analysis of channel transmission for Type A tag signals in the multipath Rayleigh fading channel. Furthermore, the OFDM system was added to the RFID tag signals to improve the sensitivity of SNR in the Rayleigh fading channel. The SNR of tag signal is not sensitive in the multipath Rayleigh fading channel. However, the sensitivity increases after OFDM is added to the RFID system and the anti-interference ability is highly improved.
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Widi Adnyana, Komang Gede, Nyoman Pramaita, and I. Made Oka Widyantara. "UNJUK KERJA KODE ORTHOGONAL M-SEQUENCE DALAM SISTEM DIRECT SEQUENCE SPREAD SPECTRUM MELALUI KANAL MULTIPATH FA." Jurnal SPEKTRUM 9, no. 4 (December 19, 2022): 1. http://dx.doi.org/10.24843/spektrum.2022.v09.i04.p1.

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Multipath and multi-user interference are the main challenges in wireless communication systems. This has become a driving force for the development of data transmission technology that is focused to overcome these problems, one of which is spread spectrum. Spread spectrum is applied to CDMA technology which has the limitations of MAI, so a spreading code is required with specifications that have a very low cross-correlation value as in the orthogonal m-sequence code. In this study, simulate the orthogonal m-sequence code with a length of 8 chips on a multipath fading channel using the Direct Sequence Spread Spectrum system with aims of assessing the performance of the orthogonal m-sequence code on a multipath fading channel, based on the effect of changes in the number of multipath components. The research method used is a Monte Carlo simulation on simulink with the output data in the form of a graph of the comparison value of BER with Eb/No. The results show that on the flat fading channel with the number of components multipath 1, the BER value of the simulation results is in accordance with the BER theory so that the simulation is valid and can be applied to frequency selective fading channels. In the frequency selective fading channel with the number of multipath components 4,6, and 8, the best performance was shown in the multipath 4 component with the smallest BER value, this was influenced by the ACF and CCF values so that the multipath 4 component had the lowest ISI and interference between users.
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Mohammed, Hasan Fadhil, and Ghanim Abdulkareem Mughir. "Performance evaluation of 4-quadrature amplitude modulation over orthogonal frequency division multiplexing system in different fading channels scenarios." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 5 (October 1, 2022): 5123. http://dx.doi.org/10.11591/ijece.v12i5.pp5123-5135.

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<p>Orthogonal frequency division multiplexing (OFDM) is a multicarrier modulation (MCM) technique that divides the wide bandwidth into parallel narrow bands, each of which is modulated by orthogonal subcarriers. Currently, OFDM is a high-spectral efficiency modulation technique that is used in a variety of wired and wireless applications. The transmitted signal in a wireless communication channel spreads from transmitter to receiver through multiple reflective paths. This triggers multipath fading, which causes variations in the received signal's amplitude and phase. Slow/fast and frequency-selective/frequency-nonselective are the main types of multipath fading channels. Therefore, in this paper, we proposed new models for modeling multipath fading channels, such as the exponential fading channel and the Gamma fading channel. In addition, new bit-error-rate (BER) derivations have been derived. The performance of the OFDM system over proposed channel models has been evaluated using Monte-Carlo simulation and compared to the Rayleigh fading channel model. The obtained results via simulations show that the exponential fading channel at a rate parameter (λ=0.5) outperforms the Rayleigh fading channel by 6 dB for all values of Eb/No, while the Gamma fading channel at (α=2) outperforms the Rayleigh fading channel by 3 dB for all values of Eb/No.</p>
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Adi Wiguna Sanjaya, I. Kadek, Nyoman Pramaita, and I. Made Oka Widyantara. "DESAIN SIMULASI UNJUK KERJA KODE SMALL KASAMI PADA KANAL MULTIPATH FADING." Jurnal SPEKTRUM 8, no. 3 (October 1, 2021): 29. http://dx.doi.org/10.24843/spektrum.2021.v08.i03.p4.

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Telecommunication capable of handling interference, fading and no less importantissues regarding the confidentiality of user information is very much needed in the currenttechnological era, to overcome this spread spectrum technology is quite developed in theadvancement of telecommunication technology. In this study, the small kasami code was usedas the spreading code. The purpose of this study is to determine the performance of the smallkasami code with changes in the number of multipath components using multipath fadingchannels. The modulation technique uses digital modulation, namely binary phase shift keying(BPSK) with a small kasami code with a code length of 15 in the spreading and spreadingprocess. Analyzed based on BER (Bit Error Rate) versus EB/No (Energy Bit per Noise). In thesimulation of flat fading performance using 1 multipath component, flat fading serves as an idealreference where the simulation BER should resemble the theoretical BER as simulationvalidation so that it can be used on selective fading channels. Variation of multipathcomponents in frequency selective fading channel produces different BER because there isinterference of multipath signal to the desired signal. The number of multipath components asmany as 11 have the most interference signals resulting in the worst performance. The value ofcross correlation between users has poor performance, where the correlation value of user 1with 2, 3, and 4 is more than 0, this value shows that many signal levels experience interferencebetween users.
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Samosir, Pebri Yeni, Nyoman Pramaita, I. Gst A. Komang Diafari Djuni Hartawan, and Ni Made Ary Esta Dewi Wirastuti. "Performance Analysis of MIMO STBC System in Flat Fading and Frequency Selective Fading Channels." Journal of Electrical, Electronics and Informatics 3, no. 1 (June 18, 2019): 19. http://dx.doi.org/10.24843/jeei.2019.v03.i01.p04.

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Multiple Input Multiple Output (MIMO) technology is a technique that can be used to overcome multipath fading. The multipath fading is caused by signals coming from several paths that experience different attenuations, delays and phases. In a multipath condition, an impulse that sent by the transmitter, will be received by the recipient not as an impulse but as a pulse with a spread width that called delay spread. Delay spread can cause intersymbol interference (ISI) and bit translation errors from the information received. To determine the effect of delay spread on the MIMO system, then MIMO system performance research was performed on flat fading and frequency selective fading channels using the Space Time Block Code (STBC) coding technique. This research was conducted using MatLab 2018a software. The simulation results show that the MIMO STBC system performance on flat fading channels is better than the MIMO STBC system performance on the frequency selective fading channel. This result is analyzed based on the value of BER vs. Eb/No and eye diagram.
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Dissertations / Theses on the topic "Multipath fading"

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Menemenlis, Nickie. "Stochastic models for multipath fading channels." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38505.

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The main contribution of this work is to extend the present multi-path fading channel (MFC) models in two directions.
First, the wireless communication system is viewed as a dynamical system where the channel constitutes the main plant of such a system. The random variables characterizing the magnitude of each multi-path component are generalized to random processes with time-varying statistics. It is claimed that the dynamics of both the log-normal shadowing and short-term fading channels is captured by the use of stochastic diffusion processes which emerge from mean-reverting Ornstein-Uhlenbeck processes, implying that signal envelope variations can be modeled using stochastic differential equations. Explicit expressions for signal envelope distributions and second order statistics of the received signal are derived.
Further, the short-term dynamical model is cast into a state-space representation and a nominal model is derived, based on which robust analysis and design can be performed in order to capture additional channel uncertainties.
The dynamical channel models introduced here are in accordance of the physical principles of electromagnetic wave propagation, they are parametric and able to describe diverse propagation environments.
Second, a unified statistical analysis framework is introduced in order to compute the various statistics, second-order properties and densities of the overall received signal of the MFC's. To this end, the MFC model is formulated as a general shot-noise process brought forward by Rice. By extending and adapting the shot-noise analysis to complex signals the statistics of the overall received signal are derived, with explicit computations of the various moments and second-order statistics. The analysis includes the case of moving scatters (i.e. rain droplets) which it is shown to affect the dynamical temporal characteristics of the channel. It is also shown here that samples of the received signal approach a jointly Gaussian density, as certain parameters tend to their limits. Further, when the density of the received signal does not approach the Gaussian density, the Edgeworth series expansion is employed to compute the non-Gaussian density. This analysis brings forward the parameters responsible for Gaussianity of the received signal, parameters which designers can use in order to tailor their transmitter/receiver design. (Abstract shortened by UMI.)
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Jefferis, Robert. "IN-SERVICE DETECTION OF MULTIPATH FADING." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/605607.

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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California
Multipath (MP) fading is the dominant channel impairment in many aeronautical telemetry links. One product of a recent multipath mitigation study is the discovery of a simple technique for detecting its presence over a useful range of conditions. The technique also detects significant random noise levels in the channel. This paper describes the “Signal Degradation Indicator” (SDI) and its application to FQPSK-B and SOQPSK [2] modulation. Laboratory emulation data is presented and implementation considerations are discussed.
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Zhou, Bin. "Mobile velocity estimation in multipath fading channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0005/MQ42710.pdf.

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Lei, Qiang, and Michael Rice. "Iterative Equalization for SOQPSK in Multipath Fading." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606195.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California
This paper investigates the application of iterative equalization techniques to overcome multipath fading for shaped offset QPSK (SOQPSK) in aeronautical telemetry. Two iterative equalization techniques for turbo encoded SOQPSK are presented. The first is the optimal-MAP turbo equalizer for OQPSK. The second equalizer is the adaptive decision feedback equalizer. Simulation shows that in the presence of frequency selective multipath typically encountered in aeronautical telemetry, both of these equalizers exhibit impressive performance.
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Samuel, Rajkumar. "Modeling of multipath fading channels for network simulation." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1293.

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Chang, Ihn Kiel. "Antijam spread-spectrum communications over multipath-fading channels." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/15453.

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Zhang, Tingting. "Space time transceiver design over multipath fading channels." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/11964.

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The objective of the study is to develop novel space-time transceivers for OS-COMA (DirectSequence Code Division Multiple Access) arrayed MIMO (Multiple-Input Multiple-Output) systems operating in multiple-access multipath fading channels. The ever increasing demand for performance and capacity in cellular wireless systems has prompted the development of OS-COMA MIMO systems. Unlike other reported research on MIMO systems which often .assumes the use of multiple antennas, in this thesis, arrayed MIMO system frameworks are proposed, which, by harnessing the geometrical information of the antenna arrays and received signals, provide a richer description of the channel characteristics and additional degrees offreedom in designing communication systems. Firstly, the framework of MIMO arrayed system in a OS-COMA system is developed. Subspace type blind channel estimator and receiver based on Doppler Spatial-Temporal Array (Doppler-STAR) are developed for time varying frequency selective fading channels, providing the system with more accurate channel estimation, higher resolution and superior interference cancellation capabilities. Secondly, joint transmitter and receiver optimisation in multipath and multiple access downlink system is studied. The two dimensional Spatio-Temporal Array manifold matrix (STAR matrix) is introduced. An iterative and a closed-form solution are proposed to solve the optimisation problem of minimising the MSE over the entire network. The proposed schemes offer a performance advantage over transmitter only (Tx-beamforming) and receiver only (Rx-beamforming) beamforming techniques under the system framework. Finally, the framework of an OFOM-CDMA arrayed system is developed. With the aid of Circular Spatial-Temporal ARray (C-STAR) manifold vector, two types of receivers (Le. preFFT and post.;FFT) are proposed-to eliminate the effect of multiple access interference (MAl) and inter-symbol interference (lSI) in a comp,letely blind way.
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Xiao, Heng. "On Modeling of a Mobile Multipath Fading Channel." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/5054.

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Multipath fading is one of the major practical concerns in wireless communications. A multipath transmission takes place when a transmitted signal arrives at a receiver by two or more paths of different delay. Such multiple paths may be due to atmospheric reflection or refraction, or reflections from buildings or other objects. A multipath fading channel is usually modeled as a time-variant tapped delay system. RAKE receiver can be used to detect the signal from the multipath fading channel. However, the number of delay taps, the time delay of each path, and the tap weight for each delay path need to be determined. The objective of this thesis is to explore the possibility of using the advance signal processing algorithms to estimate the number of delays, the time delay of each path, and the tap weight for each delay path in multipath channels and to investigate the performance of the RAKE receiver based on chip rate channel estimates in a realistic mobile environment. Simulations show that the new approach outperforms the existing approaches.
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吳萬雄 and Man-hung Ng. "Bandwidth-efficient pilot-symbol-aided techniques for fading estimation in multipath fading channels." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31242212.

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Ng, Man-hung. "Bandwidth-efficient pilot-symbol-aided techniques for fading estimation in multipath fading channels." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22582174.

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Books on the topic "Multipath fading"

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P, Osborne William, Fan Yping, and United States. National Aeronautics and Space Administration., eds. Advanced S-band studies using the TDRSS communication satellite: Final report. Las Cruces, N.M: New Mexico State University, Dept. of Electrical and Computer Programming, 1994.

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P, Osborne William, Fan Yping, and United States. National Aeronautics and Space Administration., eds. Advanced S-band studies using the TDRSS communication satellite: Final report. Las Cruces, N.M: New Mexico State University, Dept. of Electrical and Computer Programming, 1994.

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Abdel-Ghaffar, Hisham Saad. Detection-estimation structures for wideband orthogonal signaling over multipath fading channels. 1995.

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Soft Decision Diversity Coded DS/DPSK Systems in Pulse-Jammed Multipath-Fading Channels. Storming Media, 1999.

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Advanced S-band studies using the TDRSS communication satellite: Final report. Las Cruces, N.M: New Mexico State University, Dept. of Electrical and Computer Programming, 1994.

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Hamamreh, Jehad M. Novel Transceiver Architecture for Making Polar Codes Work over Multipath Fading Channels As They Do over Awgn Channels. Independently Published, 2019.

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Yang, Hong-Chuan. Introduction to Digital Wireless Communications. Institution of Engineering & Technology, 2017.

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Book chapters on the topic "Multipath fading"

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Weik, Martin H. "multipath fading." In Computer Science and Communications Dictionary, 1058. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_11929.

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Yu, Shengchang, Zhongliang Deng, Jichao Jiao, Shu Jiang, Jun Mo, and Fuhai Xu. "The Multipath Fading Channel Simulation for Indoor Positioning." In China Satellite Navigation Conference (CSNC) 2016 Proceedings: Volume II, 341–47. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0937-2_29.

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Gallager, R. G. "Residual Noise After Interference Cancellation on Fading Multipath Channels." In Communications, Computation, Control, and Signal Processing, 67–77. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6281-8_3.

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Sayeed, Akbar M., and Behnaam Aazhang. "Communication over Multipath Fading Channels: A Time-Frequency Perspective." In Wireless Communications, 73–98. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4757-2604-6_4.

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Liu, Jing, Kun Han, Wenhua Wu, Shu Wang, and Xiao Yu. "Blind Estimation Algorithm Over Fast-Fading Multipath OFDM Channels." In Algorithms and Architectures for Parallel Processing, 249–56. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-05057-3_20.

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Fan, Peirong, Xiaowei Cui, and Mingquan Lu. "Monitoring and Mitigation of GNSS Multipath Fading Utilizing Diversity Reception." In China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume III, 322–35. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3715-8_30.

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Hamamreh, Jehad M. "An Effective Design for Polar Codes over Multipath Fading Channels." In Smart Cities Performability, Cognition, & Security, 1–15. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14718-1_1.

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Karasawa, Yoshio, Takayasu Shiokawa, and Matsuichi Yamada. "Radio Probing of Ocean Surface by Observing Multipath Fading Signal." In The Ocean Surface, 329–34. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-015-7717-5_44.

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Padilha, Reinaldo, Yuzo Iano, Ana Carolina Borges Monteiro, Rangel Arthur, and Vânia Vieira Estrela. "Betterment Proposal to Multipath Fading Channels Potential to MIMO Systems." In Proceedings of the 4th Brazilian Technology Symposium (BTSym'18), 115–30. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16053-1_11.

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Susan, R. J., and Sakuntala S. Pillai. "Frequency Domain Equalisation for OFDMA System in Multipath Fading Channels." In Communications in Computer and Information Science, 369–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14493-6_38.

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Conference papers on the topic "Multipath fading"

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Silva, Bruno S. da, and Iury da S. Batalha. "Measurement Study on 5G NSA Architecture over Fading Channel." In 11th International Conference on Signal & Image Processing (SIP 2022). Academy and Industry Research Collaboration Center (AIRCC), 2022. http://dx.doi.org/10.5121/csit.2022.121703.

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The 5G NR network with the Non-Standalone (NSA) architecture aims to advance with regard to throughput. When compared to fourth-generation mobile communication (4G LTE), the 5G has a higher data exchange capability through the gNB and the UE (User Equipment). For evaluation and optimization, it is necessary to carry out practical studies on the behaviour of the system in different environmental conditions, subject to attenuation processes, such as large-scale fading (Shading) and small-scale fading (Multipath propagation). This work has analysed the effect of the MCS (Modulation and Coding Scheme) variation on Throughput/BLER for, initially, a channel degraded by default AWGN, then the analysis extends to the multipath fading effect, which emulates more realistically a mobile communication network. The analysis confirmed the need for robust decision process algorithms in terms of MCS switching to maintain adequate data rates according to the requirement of each scenario with specific QoS (Quality of service), considering both 64 QAM and 256 QAM. The throughput degradation effect was more evident in higher-order modulations due to the higher probability of error inherent in the symbol arrangement. This study can be a key for understanding and developing huge modulation and coding schemes for fifth generation communications.
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Puccinelli, Daniele, and Martin Haenggi. "Multipath fading in wireless sensor networks." In Proceeding of the 2006 international conference. New York, New York, USA: ACM Press, 2006. http://dx.doi.org/10.1145/1143549.1143757.

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Yang, Lin, Zhi Ji, Xiaodong Xu, Xuchu Dai, and Peixia Xu. "Modulation Classification In Multipath Fading Environments." In 2007 4th International Symposium on Wireless Communication Systems. IEEE, 2007. http://dx.doi.org/10.1109/iswcs.2007.4392324.

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Patzold, Matthias, and Neji Youssef. "Spectrogram analysis of multipath fading channels." In 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). IEEE, 2015. http://dx.doi.org/10.1109/pimrc.2015.7343665.

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Li, Chunfu, Min Wei, and Guangjun Wen. "A DCSK in multipath fading channels." In 2013 International Conference on Communications, Circuits and Systems (ICCCAS). IEEE, 2013. http://dx.doi.org/10.1109/icccas.2013.6765287.

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Makino, Issei, and Nobuhiko Miki. "Three-dimensional Scanner for Multipath Fading Measurement." In 2020 International Conference on Information and Communication Technology Convergence (ICTC). IEEE, 2020. http://dx.doi.org/10.1109/ictc49870.2020.9289489.

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Pham, Tri, Philippa A. Martin, Desmond P. Taylor, and Clive Horn. "Soft Detection of CPM in Multipath Fading." In 2013 IEEE 77th Vehicular Technology Conference (VTC Spring). IEEE, 2013. http://dx.doi.org/10.1109/vtcspring.2013.6692758.

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Joshi, Alok, and Davinder S. Saini. "Coded-OFDM in various multipath fading environments." In 2nd International Conference on Computer and Automation Engineering (ICCAE 2010). IEEE, 2010. http://dx.doi.org/10.1109/iccae.2010.5452071.

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Roufarshbaf, Hossein, and Jill K. Nelson. "Bayesian MLSD for multipath Rayleigh fading channels." In ICASSP 2008 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2008. http://dx.doi.org/10.1109/icassp.2008.4518242.

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Koch, Tobias, and Amos Lapidoth. "On multipath fading channels at high SNR." In 2008 IEEE International Symposium on Information Theory - ISIT. IEEE, 2008. http://dx.doi.org/10.1109/isit.2008.4595252.

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Reports on the topic "Multipath fading"

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Xiao, Heng. On Modeling of a Mobile Multipath Fading Channel. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6930.

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Xia, Xiang-Gen. Modulated Coding for Digital Communication Systems under ISI/Multipath Fading and Jamming. Fort Belvoir, VA: Defense Technical Information Center, March 2002. http://dx.doi.org/10.21236/ada400123.

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Xia, Xiang-Gen. Modulated Coding for Digital Communication Systems Under ISI/Multipath Fading and Jamming. Fort Belvoir, VA: Defense Technical Information Center, March 2000. http://dx.doi.org/10.21236/ada375853.

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Weitzen, Jay A. The Multipath and Fading Profile of the High Latitude Meteor Burst Communication Channel. Fort Belvoir, VA: Defense Technical Information Center, October 1986. http://dx.doi.org/10.21236/ada174718.

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Wilson, D., Matthew Kamrath, Caitlin Haedrich, Daniel Breton, and Carl Hart. Urban noise distributions and the influence of geometric spreading on skewness. Engineer Research and Development Center (U.S.), November 2021. http://dx.doi.org/10.21079/11681/42483.

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Abstract:
Statistical distributions of urban noise levels are influenced by many complex phenomena, including spatial and temporal variations in the source level, multisource mixtures, propagation losses, and random fading from multipath reflections. This article provides a broad perspective on the varying impacts of these phenomena. Distributions incorporating random fading and averaging (e.g., gamma and noncentral Erlang) tend to be negatively skewed on logarithmic (decibel) axes but can be positively skewed if the fading process is strongly modulated by source power variations (e.g., compound gamma). In contrast, distributions incorporating randomly positioned sources and explicit geometric spreading [e.g., exponentially modified Gaussian (EMG)] tend to be positively skewed with exponential tails on logarithmic axes. To evaluate the suitability of the various distributions, one-third octave band sound-level data were measured at 37 locations in the North End of Boston, MA. Based on the Kullback-Leibler divergence as calculated across all of the locations and frequencies, the EMG provides the most consistently good agreement with the data, which were generally positively skewed. The compound gamma also fits the data well and even outperforms the EMG for the small minority of cases exhibiting negative skew. The lognormal provides a suitable fit in cases in which particular non-traffic noise sources dominate.
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