Title :
Joint optimization of power allocation and training duration for uplink multiuser MIMO communications
Author :
Songtao Lu ; Zhengdao Wang
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
In this paper, we consider a multiuser multiple-input multiple-output (MU-MIMO) communication system between a base station equipped with multiple antennas and multiple mobile users each equipped with a single antenna. The uplink scenario is considered. The uplink channels are acquired by the base station through a training phase. Two linear processing schemes are considered, namely maximum-ratio combining (MRC) and zero-forcing (ZF). We optimize the training period and optimal training energy under the average and peak power constraint so that an achievable sum rate is maximized.
Keywords :
MIMO communication; diversity reception; optimisation; MRC; joint optimization; linear processing schemes; maximum-ratio combining; multiuser multiple-input multiple-output communication system; power allocation; training duration; uplink channels; uplink multiuser MIMO communications; zero-forcing; Base stations; MIMO; Receivers; Resource management; Signal to noise ratio; Training; Uplink; Power allocation; multiuser MIMO; rate maximization; training; uplink;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2015 IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/WCNC.2015.7127490
