Search Results - "Modulation and coding methods"

Analysis of spectral efficiency for OFDM cooperative cognitive networks with non‐linear relay by Hadavi, Samira, Hosseini, Seyyed Saleh, Talebi, Siamak

“…‐division multiplexing (OFDM) cooperative cognitive network with a non‐linear relay. The analysis is carried out subject to the power amplifier's (PA) non…”
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Adaptive power allocation in cooperative OFDM transmission with three-hop DF relaying by Wang, Jun, Chai, Xiaomeng, Zhang, Xu, Zhang, Zhongshan, Long, Keping

“…Adaptive power allocation subject to the total power constraint in an end-to-end cooperative orthogonal frequency Division multiplexing (OFDM…”
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Performance analysis of multiuser MIMO system with adaptive modulation and imperfect CSI by Yin, Xin, Yu, Xiangbin, Liu, Yan, Tan, Wei, Chen, Xiaomin

“…) under imperfect CSI, the variable switching thresholds (ST) subject to a target BER constraint are derived…”
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Dynamic resource allocation in relay-aided celluar OFDMA systems [celluar read cellular] by Song, Gaojun, Liu, Hongwu

“… The resource allocation problem is formulated as a power minimization problem, subject to meeting the target rates of all users in the network…”
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Performance analysis of rate-adaptive modulation with imperfect estimation in OFDM systems by Tan, Wenting, Yin, Xin, Yu, Xiangbin, Wei, Xiaojie, Tan, Wei

“…) and imperfect estimation in Rayleigh fading channels is presented. Subject to a target bit error rate (BER…”
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Comparison of coherent and non-coherent modulation schemes for low-data rate hand-held satellite terminals subject to high phase noise by Hussain, S, Barton, S.K

“…The object of this paper is to compare the performance degradation of coherent and non-coherent modulation schemes for low data rate transmissions in the…”
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Joint time-frequency micro-Doppler analysis of electromagnetic backscattering from micro-motion object by Daopu Xiang, Dongming Zhou, Jianguo He

“…) backscattering is subjects to modulations simultaneously in amplitude and phase that result in asymmetric Doppler spectra about the carrier frequency…”
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Synchronization technology for OFDM system and its FPGA design by Xiao-kun Zheng, Cai-xia Li, Hai-nan Long, Shuang-li Geng, Zhi-qiang Liu

“… synchronization signal . In our subject study, algorithm is researched based on MATLAB language…”
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Sidelobe suppression of LPI phase-coded radar signal by Xiongjun Fu, Liyu Tian, Meiguo Gao

“…Sidelobe suppression is one of the major subjects in LPI phase-coded signal processing…”
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A comparison of adaptive equalization methods for multiuser detection in OFDM-SS systems by Liu, R, Chester, E.G, Sharif, B.S, Yi, S.J

“…Data transmission over HF channels is subject to phenomena of dispersion, absorption and multiple paths…”
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RESEARCH AND ANALYSIS MATHEMATICAL MODEL OF THE DEMODULATOR FOR ASSESSING THE INDICATORS NOISE IMMUNITY TELECOMMUNICATION SYSTEMS by Ibrahimov, Bayram, Hashimov, Elshan, Ismayılov, Togrul

“… traffic messages is proposed. The developed mathematical model takes into account the demodulator synthesis algorithm, effective modulation and coding methods in the detector receiver…”
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