LDPC coded OFDM with Alamouti/SVD diversity technique

被引：19

作者：

Ha, J ^{[1
]}

Mody, AN ^{[1
]}

Sung, JH ^{[1
]}

Barry, JR ^{[1
]}

McLaughlin, SW ^{[1
]}

Stüber, GL ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2002年 / 23卷 / 01期

关键词：

orthogonal frequency division multiplexing; singular-value decomposition; Alamouti diversity scheme; low-density parity-check codes;

D O I：

10.1023/A:1020965726887

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Two transmit two receive space-time processing with LDPC coding is evaluated for OFDM transmission. The two methods for space-time processing are Alamouti's combining and the SVD technique. The channel estimates are calculated and provided to the diversity combiner, the SVD filters and LDPC decoder. Noise variance estimates are provided to the LDPC decoder. Using the proposed scheme we can obtain a BER of 10(-5) at an SNR of 2.6 dB with spectral efficiency of 0.4 bits/sec/Hz and 14.5 dB with a spectral efficiency of 4.2 bits/sec/Hz.

引用

页码：183 / 194

页数：12