Iterative multiuser detection for CDMA with FEC: Near-single-user performance

被引：226

作者：

Reed, MC

Schlegel, CB

Alexander, PD

Asenstorfer, JA

机构：

[1] Univ S Australia, Mobile Commun Res Ctr, Inst Telecommun Res, Mawson Lakes, SA 5095, Australia

[2] Univ Utah, Dept Elect Engn, Salt Lake City, UT 84112 USA

[3] Natl Univ Singapore, Ctr Wireless Commun, Singapore 117674, Singapore

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 1998年 / 46卷 / 12期

关键词：

code-division multiaccess; decoding; multiuser channels; random codes; turbo codes;

D O I：

10.1109/26.737408

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 introduces an iterative multiuser receiver for direct sequence code-division multiple access (DS-CDMA) with forward error control (FEC) coding. The receiver is derived from the maximum a posteriori (MAP) criterion for the joint received signal, but uses only single-user decoders. Iterations of the system are used to improve performance, with dramatic effects. Single-user turbo code decoders are utilized as the FEC system and a complexity study is presented. Simulation results show that the performance approaches single-user performance even for moderate signal-to-noise ratios.

引用

页码：1693 / 1699

页数：7

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