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

Volume

11

Issue

7

fYear

2007

fDate

7/1/2007 12:00:00 AM

Firstpage

613

Lastpage

615

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;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2007.070305

Filename

4273778