Optimal power allocation with limited feedback of channel state information in multi-user MIMO systems

2020 ◽  
Vol 17 (2) ◽  
pp. 163-175
Author(s):  
Kusi Ankrah Bonsu ◽  
Weiwei Zhou ◽  
Su Pan ◽  
Yan Yan
Keyword(s):  
Power Allocation ◽  
Channel State Information ◽  
Mimo Systems ◽  
Limited Feedback ◽  
Optimal Power Allocation ◽  
Channel State ◽  
State Information ◽  
Optimal Power

Iterative Detection Scheme for Turbo-BLAST System with Adaptive Power Allocation in the Presence of Channel State Information Imperfection

2013 ◽  
Vol 646 ◽  
pp. 120-125
Author(s):  
Xiao Min Chen ◽  
Xiao Dan Yu ◽  
Wei Tan ◽  
Xiang Bin Yu
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Channel State Information ◽  
Iterative Detection ◽  
Channel State ◽  
Estimation Errors ◽  
Detection Scheme ◽  
State Information ◽  
Channel Estimation Errors ◽  
Optimal Power

We propose an iterative detection scheme for Turbo-BLAST system with optimal power allocation in the presence of channel state information imperfection. The proposed scheme uses the channel estimation matrix for detection and treats the interference caused by channel estimation errors and additive white Gaussian noise as equivalent noise where the channel estimation matrix and the statistical characteristic of channel estimation errors are necessitated. Simulation results show the proposed algorithm is effective to improve bit error rate (BER) performance through iterative detection for modified Turbo-BLAST system with optimal power allocation in the presence of imperfect channel state information.

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