An Improved Fixed Sphere Decoder Employing Soft Decision for the Detection of Non-orthogonal Signals

被引：73

作者：

Xu, Tongyang ^{[1
]}

Grammenos, Ryan C. ^{[1
]}

Marvasti, Farokh ^{[1
]}

Darwazeh, Izzat ^{[1
]}

机构：

[1] UCL, Dept Elect & Elect Engn, London, England

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 10期

关键词：

Multicarrier communications; spectral efficiency; OFDM; SEFDM; soft decision; iterative detection; fixed sphere decoder; SPECTRAL EFFICIENCY; FASTER;

D O I：

10.1109/LCOMM.2013.090213.131573

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter proposes a hybrid soft iterative method together with Fixed Sphere Decoding (FSD) concurrently optimize performance and complexity. We show that for bandwidth compression factors of up to 25 percent, we can achieve the same performance as Orthogonal Frequency Division Multiplexing (OFDM). For systems with bandwidth compression higher than 25 percent, the complexity/performance trade-offs of the hybrid method are better than those of Truncated Singular Value Decomposition-FSD (TSVD-FSD).

引用

页码：1964 / 1967

页数：4

共 15 条

[1] Faster-Than-Nyquist Signaling [J].