TY - PAT
T1 - Compress-forward coding with N-PSK modulation for the half-duplex Gaussian relay channel
AU - Liu, Z.
AU - Stankovic, V.
AU - Xiong, Zixiang
N1 - Also published under the following patent numbers: US7912147, US8363747, US20110161776
PY - 2011/3
Y1 - 2011/3
N2 - 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.
AB - 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.
KW - compress-forward coding
KW - Gaussian relay channel
KW - N-PSK modulation
UR - http://dx.doi.org/10.1109/ISIT.2008.4595420
UR - http://assignments.uspto.gov/assignments/q?db=pat&pub=20070217541
M3 - Patent
M1 - US20070217541
ER -