Title :
An Optimal Closed-Loop Transmit Antenna Diversity With Average and Peak Power Constraints
Author :
Lee, Ye Hoon ; Kim, Nam-Soo
Author_Institution :
Seoul Nat. Univ. of Technol., Seoul
Abstract :
In a closed-loop transmit-antenna-diversity system, a closed-form expression for the optimal transmitter weights that minimize the average bit error rate (BER) is derived with fixed average and peak transmit power constraints. It is shown that the peak-power limitation degrades the average BER performance more significantly as the available average power and/or the number of transmit antennas increase.
Keywords :
closed loop systems; diversity reception; error statistics; transmitting antennas; BER; average-peak power constraint; bit error rate; closed-form expression; closed-loop transmit antenna diversity; optimal transmitter; Peak transmit power; peak transmit power; transmit antenna diversity; transmit antenna diversity (TAD); transmitter weights;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2007.898400
