Title :
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; bit error rate; closed-form expression; closed-loop transmit antenna diversity system; power constraints; Adaptive arrays; Array signal processing; Bit error rate; Degradation; Diversity reception; Power control; Receiving antennas; Transmitters; Transmitting antennas; Wireless communication;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on
Conference_Location :
Helsinki
Print_ISBN :
978-1-4244-0955-6
Electronic_ISBN :
978-1-4244-0955-6
DOI :
10.1109/SPAWC.2007.4401408
