NDLI: Effect of composite channel aging on the spectral efficiency of multi-pair massive multiple-input multiple-output amplify-and-forward relay networks

Content Provider	IET Digital Library
Author	Chen, Yuanyuan Liu, Chen Wang, Hairong Zhu, Wei Ping
Abstract	This study investigates the spectral efficiency of multi-pair massive multiple-input multiple-output amplify-and-forward relay networks by considering the composite channel aging effect. The rational of this work is that the channel aging effect caused by phase noise and node movements is an inevitable practical channel impairment in time-varying fading channels and substantially degrades the performance. The proposed model comprises multiple sources and multiple destinations, each equipped with a single antenna, which communication via a relay equipped with a very large number of antennas by employing maximal-ratio combining/maximum-ratio transmission. Based on this model, the authors first derive a closed-form lower bound expression for the achievable rate of per source–destination pair. Then, by using the derived expression, they study how the transmitted powers of each source and the relay can be reduced without compromising the spectral efficiency when the number of relay antennas approaches infinity. They also discuss the effect of channel aging coefficients, including Doppler shift and phase noise increment variance, on the asymptotic spectral efficiency under different power scaling laws. Both theoretical analysis and Monte Carlo simulations disclose that the channel aging effect does not affect the power scaling laws but degrades the spectral efficiency.
Starting Page	1313
Ending Page	1324
Page Count	12
ISSN	17518628
Volume Number	11
e-ISSN	17518636
Issue Number	Issue 8, Jun (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/11/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.1356
Journal	IET Communications
Publisher Date	2017-02-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplify And Forward Communication Antenna Array Asymptotic Spectral Efficiency Closed-form Lower Bound Expression Composite Channel Aging Effect Diversity Reception Doppler Shift Fading Channel Inevitable Practical Channel Impairment Maximal-ratio Combining Maximal-ratio Transmission MIMO Communication Monte Carlo Method Monte Carlo Simulation Multipair Massive MIMO Amplify-and- Forward Relay Network Multiple-input Multiple-output System Node Movement Phase Noise Phase Noise Increment Variance Power Scaling Law Radio Link And Equipment Relay Antenna Relay Network Single Antenna Source-destination Pair Telecommunication Time-varying Fading Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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