Paper Info
Title
A peak power aware linear-precoding scheme for MIMO-SDM systems
Abstract
In MIMO space division multiplexing (SDM) systems, the peak power of the transmit signal at each antenna element is increased by the precoder and hence it causes the power efficiency degradation and/or nonlinear distortion at the power amplifier. To solve this problem, this paper present a peak power aware precoding scheme for MIMO-SDM systems, where the precoder is designed to mitigate the peak output power at each antenna element so that peak amplitude of the transmit signal at each antenna is reduced while minimizing the performance degradation caused by the peak power restriction. The proposed system employs an alternative iterative optimization algorithm that determines the precoding matrix so that the precoding and virtual post-coding matrices are alternatively optimized under the constraint of peak output at each antenna element. Simulation results show that the proposed method is effective in restricting the peak transmission power at each antenna within a permissible level while mitigating performance degradation in bit error rate (BER) performance of the precoded SDM systems.
Year
DOI
Venue
2014
10.1109/PIMRC.2014.7136197
2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC)
Keywords
Field
DocType
Space division multiplexing,MIMO,Peak power,Precoding,Iterative algorithm
Electrical efficiency,3G MIMO,Control theory,Computer science,MIMO,Nonlinear distortion,Spatial multiplexing,Precoding,Bit error rate,Amplifier
Conference
ISSN
Citations 
PageRank 
2166-9570
0
0.34
References 
Authors
8
3
Name
Order
Citations
PageRank
Satoshi Takabatake100.34
Osamu Muta212029.21
Hiroshi Furukawa321131.32