Title :
Water-filling power allocation scheme for Turbo-BLAST system with imperfect channel state information
Author :
Chen, Xiao-min ; Yu, Xiang-Bin ; Zhu, Qiu-ming ; Xu, Da-zhuan
Author_Institution :
Coll. of Electron. & Inf. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
We propose a water-filling power allocation scheme for Turbo-BLAST system in the presence of channel state information imperfection. Subjected to the total transmit power constraint, the water-filling rule is used to allocate proper power for every sub-channel in order to improve channel capacity performance based on the imperfect channel state information. Simulation results show that the proposed algorithm is effective for Turbo-BLAST system to improve channel capacity performance especially in the lower signal noise ratio region and/or large antenna systems in the presence of channel state information imperfection.
Keywords :
MIMO communication; antennas; channel capacity; Turbo-BLAST system; antenna system; channel capacity performance; imperfect channel state information; multiple-input multiple-output system; signal noise ratio region; subchannel; total transmit power constraint; water-filling power allocation; water-filling rule; Antennas; Channel capacity; Channel estimation; Channel state information; MIMO; Noise; Resource management; Imperfect Channel State Information; Multiple-Input Multiple-Output; Turbo-BLAST; Water-filling Power Allocation;
Conference_Titel :
Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications (MAPE), 2011 IEEE 4th International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8265-8
DOI :
10.1109/MAPE.2011.6156194
