Title :
Power Control of V-BLAST System with Per-Antenna Power Constraints
Author :
Gao, Qiubin ; Zhang, Xian-Da ; Li, Jian
Author_Institution :
Tsinghua Univ., Beijing
fDate :
11/1/2007 12:00:00 AM
Abstract :
This letter considers power control for the V- BLAST system with successive interference cancellation (SIC) receiver. In addition to a conventional sum-power constraint across the transmit antennas, this letter adopts a per-antenna power constraint, which is more realistic in practice. Average uncoded BER of all detection stages is minimized under the given constraints. Simulation results are presented to illustrate the effect of the additional per-antenna power constraint.
Keywords :
MIMO communication; antennas; interference suppression; power control; V-BLAST system; per-antenna power constraints; power control; successive interference cancellation receiver; sum-power constraint; vertical Bell Laboratories layered space-time architecture; Bit error rate; Feedback; Interference cancellation; Interference constraints; MIMO; Power control; Signal to noise ratio; Silicon carbide; Transmitters; Transmitting antennas;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.071233
