Title :
A BICM-MD-ID scheme in FFH system for combatting partial-band interference
Author :
Dai, Jingke ; Guo, Daoxing ; Zhang, Bangning
Author_Institution :
Satellite Commun. Dept., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
An iterative decoding scheme with diversity is proposed for LDPC coded FFH/MFSK system under partial-band interference. The performance gain is obtained by soft-information exchange between demodulator and decoder. Extrinsic information transfer (EXIT) chart is employed to study the iterative procedure, which indicates that the convergence speed of the system is fast. The simulation results show the presented scheme outperforms traditional FFH/BFSK system, and the gain increases as the jamming probability increases. In addition, a moderate modulation order should be chose carefully in practical system.
Keywords :
frequency shift keying; iterative decoding; jamming; parity check codes; BICM MD ID scheme; FFH system; LDPC code; MFSK; decoder; demodulator; extrinsic information transfer chart; iterative decoding scheme; jamming probability; partial band interference; soft information exchange; Bit error rate; Decoding; Demodulation; Iterative decoding; Jamming; extrinsic information transfer (EXIT) chart; fast frequency hopping; iteration times; low density parity check (LDPC) codes; modulation order;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2010 International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-1-4244-7556-8
Electronic_ISBN :
978-1-4244-7554-4
DOI :
10.1109/WCSP.2010.5632008
