A fast sphere decoding framework for space-frequency block codes

被引：2

作者：

Safar, Z ^{[1
]}

Su, WF ^{[1
]}

Liu, KJR ^{[1
]}

机构：

[1] Univ Copenhagen, IT, Dept Innovat, Copenhagen, Denmark

来源：

2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7 | 2004年

关键词：

D O I：

10.1109/ICC.2004.1313000

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In order to make multi-antenna OFDM systems an attractive choice for practical applications, implementation issues such as decoding complexity must be addressed successfully. In this paper, we propose a computationally efficient decoding algorithm for space-frequency block codes. The central part of the algorithm is a complex-domain, modulation-independent sphere decoding framework. The simulation results demonstrate that the proposed algorithm can significantly reduce the decoding complexity. For 64 QAM modulation, we observe up to about 73% reduction in the required FLOP count per code block compared to previously proposed methods without noticeable performance degradation.

引用

页码：2591 / 2595

页数：5

共 12 条

[1] Closest point search in lattices [J].