Title
Fast Algorithm For Decision Feedback Equalization In Multiple Input Multiple Output Channel
Abstract
In this paper, we propose a new algorithm for zero-forcing decision feedback equalization (ZF-DFE) in multiple input multiple output flat Rayleigh fading channel. The basic idea is to separates the layer ordering and the filter construction operations, thus making both operations tractable and efficient. The new layer ordering strategy approximates the optimal ordering rule (VBLAST) from a geometrical perspective, and the filters in proposed ZF-DFE are constructed using a matrix Cholesky decomposition aided QR decomposition. Compared to the conventional ZF-DFE detectors utilizing optimal and suboptimal ordering rules (SQRD), the proposal is complexity efficient. Additionally, the bit error rate performance of the new algorithm significantly approximates that of the optimal ordering ZF-DFE. Thus a practical signal detection scheme for the vector channel is found.
Year
DOI
Venue
2006
10.1109/VETECS.2006.1683292
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6
Keywords
Field
DocType
bit error rate,qr decomposition,fading,cholesky decomposition,signal detection,detectors,mimo,zero forcing
Rayleigh fading,Equalization (audio),Detection theory,Matrix (mathematics),Computer science,Communication channel,Algorithm,Electronic engineering,QR decomposition,Cholesky decomposition,Bit error rate
Conference
ISSN
Citations 
PageRank 
1550-2252
6
0.65
References 
Authors
2
4
Name
Order
Citations
PageRank
Wenjie Jiang125626.60
Yusuke Asai25415.85
Takeshi Onizawa33911.20
Satoru Aikawa4359.39