Newly-Built Iterative Receiver and Hardware Implementation for V-BLAST

Rong CHEN  Xun FAN  Youyun XU  Haibin ZHANG  

Publication
IEICE TRANSACTIONS on Communications   Vol.E90-B   No.2   pp.377-380
Publication Date: 2007/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.2.377
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
iterative receiver,  V-BLAST,  numerical stability,  hardware implementation,  

Full Text: PDF>>
Buy this Article




Summary: 
Iterative receivers, which perform MMSE detection and decoding iteratively, can provide significant performance improvement compared with noniterative method. However, due to the high computational cost and numerical instability, conventional MMSE detection using a priori information can not be implemented in hardware. In this letter, we propose a newly-built iterative receiver which is division-free and numerically stable, and then we analyze the results of a fixed-point simulation and present the hardware implementation architecture.