Title :
Power adaptation for transmit antenna diversity in Rayleigh fading channels
Author :
Lee, Ye Hoon ; Kim, Nam-Soo
Author_Institution :
i-Networking Lab., Samsung Adv. Inst. of Technol., Suwon, South Korea
Abstract :
In this paper, power adaptation for a transmit antenna diversity system is considered in Rayleigh fading channels. The optimal space-time domain power adaptation that minimizes the average bit error rate is analytically derived subject to a fixed average power constraint. Our results show that the proposed space-time domain power adaptation scheme has a significant performance gain over the conventional power adaptation in the space domain only.
Keywords :
Rayleigh channels; antenna arrays; diversity reception; error statistics; mobile radio; power control; transmitting antennas; BER; Rayleigh fading channels; minimal average bit error rate; mobile radio communication; optimal space-time domain power adaptation scheme; power adaptation; transmit antenna diversity; Adaptive arrays; Bit error rate; Downlink; Fading; Performance gain; Power system modeling; Rayleigh channels; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on
Print_ISBN :
0-7803-7858-X
DOI :
10.1109/SPAWC.2003.1318992
