Title :
Robust Diversity-Combing Receivers for LDPC Coded FFH-SS with Partial-Band Interference
Author :
Wu, Xiaofu ; Zhao, Chunming ; You, Xiaohu ; Li, Shaoqian
Author_Institution :
Southeast Univ., Nanjing
fDate :
7/1/2007 12:00:00 AM
Abstract :
Diversity-combining followed by min-sum decoding is proposed for mitigating partial-band interference in low-density parity-check (LDPC) coded frequency-hopping systems with diversity transmission. A new robust diversity-combining technique is derived based on the generalized maximum-likelihood ratio test (GMLRT). Simulations show that, among various diversity-combining techniques, the GMLRT, envelope self-normalizing and clipped-linear combining schemes are appealing for use in practice.
Keywords :
diversity reception; frequency hop communication; parity check codes; radiofrequency interference; spread spectrum communication; clipped-linear combining schemes; diversity transmission; diversity-combining techniques; frequency-hopping systems; generalized maximum-likelihood ratio test; low- density parity-check; min-sum decoding; partial-band interference; robust diversity-combining receivers; Diversity reception; Envelope detectors; Frequency shift keying; Interference; Maximum likelihood decoding; Maximum likelihood detection; Parity check codes; Reed-Solomon codes; Robustness; Testing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.070305
