An efficient QRD-M algorithm using partial decision feedback detection

被引：13
|
作者：
Jeon, Kihwan [1 ]
Kim, Hyounkuk [1 ]
Park, Hyuncheol [1 ]
机构：
[1] Informat & Commun Univ, Sch Engn, 119 Munjiro, Taejon 305732, South Korea
来源：
2006 FORTIETH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, VOLS 1-5 | 2006年
关键词：
D O I：
10.1109/ACSSC.2006.355041
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a reduced-complexity QRD-M algorithm using partial decision feedback (DF) detection. Adaptive QRD-M algorithm obtains the threshold value through the simulation to prune off paths at each stage. However, the proposed algorithm efficiently acquires the threshold value using partial DF detection at each stage. In 4 x 4 V-BLAST system with 16-QAM, the complexity of the proposed algorithm is approximately 50 % lower than that of adaptive QRD-M algorithm at E-b/N-0 = 16 dB. Moreover, the effectiveness of complexity reduction is especially predominant at low signal-to-noise ratio (SNR).
引用
收藏
页码：1658 / +
页数：2
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