학술논문
LDPC Coded OFDM with Alamouti/SVD Diversity Technique
Document Type
Article
Source
Wireless Personal Communications; October 2002, Vol. 23 Issue: 1 p183-194, 12p
Subject
Language
ISSN
09296212; 1572834X
Abstract
Two transmit two receive space-time processingwith LDPC coding is evaluated for OFDM transmission.The two methodsfor space-time processing are Alamouti's combining and the SVD technique.The channel estimates are calculated and provided tothe diversity combiner, the SVD filters and LDPC decoder.Noise variance estimates areprovided to the LDPC decoder. Using the proposed schemewe can obtain a BER of 10−5at an SNR of 2.6 dB withspectral efficiency of0.4 bits/sec/Hz and 14.5 dB with a spectral efficiency of 4.2 bits/sec/Hz.