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A V-BLAST Detector Based on Modified Householder QRD over the Spatially Correlated Fading Channel

Xiaorong JING, Zhengzhong ZHOU, Tianqi ZHANG

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Summary :

We propose a feasible V-BLAST detector based on modified Householder QRD (M-H-QRD) over spatially correlated fading channel, which can almost match the performance of the V-BLAST algorithm with much lower complexity and better numerical stability. Compared to the sorted QRD (S-QRD) detector, the proposed detector requires a smaller minimum word-length to reach the same value of error floor for fixed-point (FP) numerical precision despite no significant performance difference for floating-point machine precision. All these advantages make it attractive when implemented using FP arithmetic.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.11 pp.3727-3731
Publication Date
2008/11/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.11.3727
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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