论文信息 - High capacity synchronous FH/SSMA networks with turbo coding

High capacity synchronous FH/SSMA networks with turbo coding

In this paper, the performance of turbo codes is investigated in a high capacity synchronous FH/SSMA cellular network. A new iterative scheme for updating the branch metrics of the turbo decoder is proposed. The performance of turbo codes is also compared with that of RS codes with parallel decoding. It is argued that, for this network architecture, turbo codes, with soft-input decoding, can achieve superior performance to the RS codes which are commonly used in asynchronous frequency hopping networks.

H. El Gamal | E. Geraniotis

[1] Evaggelos Geraniotis,et al. Noncoherent Hybrid DS-SFH Spread-Spectrum Multiple-Access Communications , 1986, IEEE Trans. Commun..

[2] M. B. Pursley,et al. Error Probabilities for Slow-Frequency-Hopped Spread-Spectrum Multiple-Access Communications Over Fading Channels , 1982, IEEE Trans. Commun..

[3] Dariush Divsalar,et al. A soft-input soft-output APP module for iterative decoding of concatenated codes , 1997, IEEE Communications Letters.

[4] H. El Gamal,et al. Turbo codes for time varying AWGN channels with application to FH/SSMA , 1998, Proceedings. 1998 IEEE International Symposium on Information Theory (Cat. No.98CH36252).

[5] Evaggelos Geraniotis. Coherent Hybrid DS-SFH Spread-Spectrum Multiple-Access Communications , 1985, IEEE J. Sel. Areas Commun..

[6] Evaggelos Geraniotis,et al. Coded FH/SS Communications in the Presence of Combined Partial-Band Noise Jamming, Rician Nonselective Fading, and Multiuser Interference , 1987, IEEE J. Sel. Areas Commun..

[7] Evaggelos Geraniotis. Multiple-access capability of frequency-hopped spread-spectrum revisited: an analysis of the effect of unequal power levels , 1990, IEEE Trans. Commun..

[8] A. Glavieux,et al. Near Shannon limit error-correcting coding and decoding: Turbo-codes. 1 , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[9] Jean Conan. The Weight Spectra of Some Short Low-Rate Convolutional Codes , 1984, IEEE Trans. Commun..