A low complexity branch-and-bound-based decoder for V-BLAST systems with PSK signals

被引：4

作者：

Minh-Tuan Le ^{[2
]}

Van-Su Pham ^{[1
]}

Mai, Linh ^{[1
]}

Yoon, Giwan ^{[1
]}

机构：

[1] Informat & Commun Univ, Sch Engn, Taejon 305732, South Korea

[2] 1 Posts & Telecommun Inst Technol, Fac Elect, Ha Dong City, Ha Tay, Vietnam

来源：

SIGNAL PROCESSING | 2009年 / 89卷 / 02期

关键词：

Space-time coding; Multiple-input multiple-output; Maximum likelihood detection; Diversity; Wireless communication; LATTICE CODE DECODER; ALGORITHM;

D O I：

10.1016/j.sigpro.2008.08.005

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：

In this paper, a fist sphere decoder is proposed for the joint detection of phase-shift keying (PSK) signals in uncoded Vertical Bell Laboratories Layered Space Time (V-BLAST) systems. The proposed decoder consists of preprocessing stage and search stage. The preprocessing stage is based oil the enhancement of the ordering mean square error decision feedback equalizer (MMSE-DFE). Its role is to generate a tree structure Suitable for the search stage. The search stage relies on the depth-first brand-and-bound (BB) algorithm with "best-first" orders stored in lookup tables. Simulation results show that the proposed decoder is able to provide the system with the maximum likelihood (ML) performance at low complexity. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：197 / 205

页数：9

共 16 条

[1] Closest point search in lattices
Agrell, E
Eriksson, T
Vardy, A
Zeger, K
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2002, 48 (08) : 2201 - 2214
[2] A new reduced-complexity sphere decoder for multiple antenna systems
Chan, AM
Lee, IK
[J]. 2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS, 2002, : 460 - 464
[3] Cui T, 2004, GLOB TELECOMM CONF, P3656
[4] DAMEN MO, 2003, IEEE T INF THEORY, V49
[5] Lattice code decoder for space-time codes
Damen, O
Chkeif, A
Belfiore, JC
[J]. IEEE COMMUNICATIONS LETTERS, 2000, 4 (05) : 161 - 163
[6] On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas
Foschini G.J.
Gans M.J.
[J]. Wireless Personal Communications, 1998, 6 (3) : 311 - 335
[7] Detection algorithm and initial laboratory results using V-BLAST space-time communication architecture
Golden, GD
Foschini, CJ
Valenzuela, RA
Wolniansky, PW
[J]. ELECTRONICS LETTERS, 1999, 35 (01) : 14 - 16
[8] On the sphere-decoding algorithm I. Expected complexity
Hassibi, B
Vikalo, H
[J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2005, 53 (08) : 2806 - 2818
[9] HOCHWALD BM, 2003, IEEE T COMMON, V51
[10] Rate-one full-diversity quasi-orthogonal STBCs with low decoding complexity
Le, Minh-Tuan
Pham, Van-Su
Mai, Linh
Yoon, Giwan
[J]. IEICE TRANSACTIONS ON COMMUNICATIONS, 2006, E89B (12) : 3376 - 3385

← 1 2 →