Title
On Impact of Imperfect CSI Over Hexagonal QAM for TAS/MRC-MIMO Cooperative Relay Network
Abstract
In this letter, we investigate the effect of imperfect channel state information (CSI) on quadrature amplitude modulation (QAM) schemes for a multi-input and multi-output (MIMO) variable gain non-regenerative cooperative network over the generalized Nakagami-m fading channel. Energy-efficient and standardized transmit antenna selection strategy is employed, to evaluate the system performance by considering the antenna link, which maximizes the received signal power. Framework for the upper-bound outage probability (OP), asymptotic OP and the average symbol error rate for hexagonal QAM, rectangular QAM, and 32-cross QAM are provided. Useful insights are drawn from comparative ASER analysis of various QAM schemes by considering the impact of both the fading parameter and the imperfect CSI for MIMO channels. Finally, the derived analytical results are validated through Monte-Carlo simulations.
Year
DOI
Venue
2019
10.1109/LCOMM.2019.2931433
IEEE Communications Letters
Keywords
Field
DocType
Quadrature amplitude modulation,MIMO communication,Transmitting antennas,Power system reliability,Probability,Receiving antennas
Topology,Quadrature amplitude modulation,Imperfect,Fading,Computer science,Hexagonal crystal system,QAM,MIMO,Real-time computing,Nakagami distribution,Relay network
Journal
Volume
Issue
ISSN
23
10
1089-7798
Citations 
PageRank 
References 
2
0.37
0
Authors
3
Name
Order
Citations
PageRank
Parvez Shaik120.37
Praveen Kumar Singya2266.69
Vimal Bhatia313445.36