Compress-forward coding with N-PSK modulation for the half-duplex gaussian relay channel
Abstract
Systems and methods that implement compress-forward (CF) coding with N-PSK modulation for the relay channel are disclosed, where N is greater than or equal to two. In the CF scheme, Wyner-Ziv coding is applied at the relay to exploit the joint statistics between signals at the relay and the destination. Quantizer design and selection of channel code parameters are discussed. Low-density parity check (LDPC) codes are used for error protection at the source, and nested scalar quantization (NSQ) and irregular repeat accumulate (IRA) codes for Wyner Ziv coding (or more precisely, distributed joint source-channel coding) at the relay. The destination system decodes original message information using (a) a first signal received from the source in a first interval and (b) a second signal that represents a mixture of transmissions from the source and relay in the second interval.
Subject
375/279714/755
H03M 7/30
H04L 27/2053
H04L 27/186
H03M 13/658
H04L 1/0057
H03M 13/3746
H04L 1/005
H04L 27/183
H03M 13/6312
H03M 13/6306
H04L 1/0041
H04L 2001/0097
H03M 13/1197
H03M 13/1102
Collections
Citation
Liu, Zhixin; Stankovic, Vladimir M.; Xiong, Zixiang (2013). Compress-forward coding with N-PSK modulation for the half-duplex gaussian relay channel. United States. Patent and Trademark Office; Texas A&M University. Libraries. Available electronically from https : / /hdl .handle .net /1969 .1 /177021.