Title :
Enhanced limited-coordination strategies for multi-user MIMO sytems
Author :
Aluko, Obadamilola ; Clerckx, Bruno ; Love, David J. ; Krogmeier, James V.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Advanced cooperation strategies in multi-user multi-input multi-output (MU-MIMO) wireless communication systems could be facilitated by knowledge of global channel state information (CSI). Obtaining global knowledge of CSI in such MU-MIMO systems, where each user knows the CSI between every pair of users, would enhance cooperation amongst users and also improve the performance of such systems. In this paper, we utilize network coding strategies proposed in to reduce the feedback overhead required to obtain limited-rate global CSI knowledge in a MU-MIMO system. We then utilize the limited-rate global CSI to enhance MU-MIMO performance through proposed limited-coordination strategies.
Keywords :
MIMO communication; multi-access systems; multiuser channels; network coding; advanced cooperation strategy; enhanced limited-coordination strategy; feedback overhead; global channel state information; multiuser MIMO system; multiuser multi-input multi-output wireless communication; network coding; Array signal processing; Bit error rate; Decoding; Downlink; Knowledge engineering; MIMO; Quantization;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2010 Conference Record of the Forty Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-9722-5
DOI :
10.1109/ACSSC.2010.5757717
