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A hybrid ARQ scheme with adaptive forward error correction for satellite communications

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4 Author(s)
Shiozaki, A. ; Fac. of Eng., Osaka Electro-Commun. Univ., Neyagawa, Japan ; Okuno, K. ; Suzuki, K. ; Segawa, T.

A hybrid automatic-repeat-request system combined with adaptive forward error correction (ARQ/AFEC) which adaptively alters the error-correcting capability according to channel state using a nonsystematic Reed-Solomon code is presented. lt is shown that the system can alter the error-correcting capability by varying the number of information symbols fed to the decoder only, and not change the hardware of the encoder. Performance evaluations indicate that the ARQ/AFEC system has much higher frame efficiency than ARQ without AFEC for low-bit error rate and has high frame efficiency in a wide range of bit error rates

Published in:

Communications, IEEE Transactions on  (Volume:39 ,  Issue: 4 )

Date of Publication:

Apr 1991

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