Performance of low-density parity-check coded FFH/BFSK systems under band multitone jamming

Authors:
Li-Der Jeng;Jen-Hou Huang;Chung-Hsuan Wang
Affiliations:
Chung Yuan Christian University, Chung-Li, Taiwan Roc;Chung Yuan Christian University, Chung-Li, Taiwan Roc;National Chiao Tung University, Hsin-Chu, Taiwan Roc
Venue:
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Year:
2007

Citing 2
Cited 0

Low-density parity-check codes for FFH/BFSK systems with partial-band noise jamming

Proceedings of the 2006 international conference on Wireless communications and mobile computing
Iterative decoding of binary block and convolutional codes

IEEE Transactions on Information Theory

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Abstract

Frequency-hopping spread-spectrum (FH-SS) is an efficient technique to combat jamming. Previous works in jamming channels pay more attention to partial band noise jamming (PBNJ). In this paper, Low-Density Parity-Check (LDPC) coded fast frequency hopping binary frequency shift keying (FFH/BFSK) spread-spectrum (SS) systems are investigated under band multitone noise jamming (BMTJ). We take the advantage of both diversity gain and coding gain for enhancing the system performance. We consider maximum-likelihood (ML) diversity combing and square-law with equal gain combing schemes which are used to compute the codeword bit decision reliability. The sum-product algorithm (SPA) based on belief propagation is exploited for iterative decoding. Simulation results reveal that our proposed system provides excellent performance against band multitone noise jamming.