Channel estimation errors and pilot power allocation for wireless systems with antenna arrays

2003 ◽  
Vol 14 (4) ◽  
pp. 373-381 ◽  
Author(s):  
John S. Thompson ◽  
Rudolf Tanner ◽  
Damian Bevan
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Antenna Arrays ◽  
Wireless Systems ◽  
Estimation Errors ◽  
Channel Estimation Errors ◽  
Pilot 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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