Hybrid beamforming for single carrier mmWave MIMO systems
Hybrid analog and digital beamforming (HBF) has been recognized as an attractive technique offering a tradeoff between hardware implementation limitation and system performance for future broadband millimeter wave (mmWave) communications.
Cong, Jiaqi, Lin, Tian, Zhu, Yu
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Harnessing machine learning for fiber-induced nonlinearity mitigation in long-haul coherent optical OFDM [PDF]
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).Coherent optical
Aldaya, Ivan +5 more
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Piecewise-linear companding transform for peak-to-average power ratio reduction of OFDM signals
In order to reduce the peak-to-average power ratio(PAPR) of orthogonal frequency division multiplexing(OFDM) signals,a piecewise-linear companding transform was proposed.Small amplitudes were multiplied by a scale factor,while large ones were not only ...
YANG Pin-lu, HU Ai-qun
doaj +2 more sources
Partial transmit sequence (PTS) scheme has been well applied to reduce the high peak-to-average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) signal.
Siying Lv +3 more
doaj +1 more source
The Noncoherent Rician Fading Channel -- Part II : Spectral Efficiency in the Low-Power Regime [PDF]
Transmission of information over a discrete-time memoryless Rician fading channel is considered where neither the receiver nor the transmitter knows the fading coefficients.
Gursoy, Mustafa Cenk +2 more
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Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems
A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming ...
Svantesson Thomas +3 more
doaj
Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems [PDF]
Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems.
Guo, P, Jiang, T, Qu, D, Song, Y, Yao, W
core +1 more source
Nowadays, the sensor community has become wireless, increasing their potential and applications. In particular, these emerging technologies are promising for vehicles’ communications (V2V) to dramatically reduce the number of fatal roadway ...
Abdelhamid Louliej +3 more
doaj +1 more source
Peak to Average Power Ratio Reduction and Bit Error Rate Improvement in Wireless Orthogonal Frequency Division Multiplexing Communication Systems [PDF]
Orthogonal frequency division multiplexing (OFDM) offers high data rate transmission with high spectral efficiency, immunity to multipath fading, and simple implementation using fast Fourier transform (FFT).
Al-Azzo, Wisam Fahmi
core
Crest Factor Reduction in MC-CDMA Employing Carrier Interferometry Codes
This paper addresses signal compactness issues in MC-CDMA employing carrier interferometry codes using the measure of crest factor (CF). Carrier interferometry codes, applied to -carrier MC-CDMA systems, enable users to simultaneously share the system ...
Nassar Carl R, Natarajan Balasubramaniam
doaj +2 more sources

