Turbo-coded hybrid ARQ using various segment selective repeat

Author

Shi, Tao ; Cao, Lei

Author_Institution

Dept. of Electr. Eng., Mississippi Univ., MS, USA

Volume

1

fYear

2004

fDate

31 May-2 June 2004

Firstpage

81

Abstract

In this paper, segment selective repeat (SSR) is proposed as a novel retransmission strategy for turbo-coded hybrid automatic repeat request (TC-HARQ). Two SSR strategies based on mean log-likelihood ratio (M-LLR) and sign change of log-likelihood ratio (SC-LLR) are compared. Simulation demonstrates that SSR outperforms type-I HARQ in throughput while having similar bit error rate (BER) under Rayleigh fading channel. M-LLR based SSR also performs better than Type-II HARQ under block fading channel.

Keywords

Rayleigh channels; automatic repeat request; error statistics; turbo codes; BER; Rayleigh fading channel; automatic repeat request; bit error rate; block fading channel; mean log-likelihood ratio; segment selective repeat; sign change of log-likelihood ratio; turbo-coded hybrid ARQ; AWGN; Additive white noise; Automatic repeat request; Bit error rate; Cyclic redundancy check; Equations; Fading; Forward error correction; Iterative decoding; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on

Print_ISBN

0-7803-7938-1

Type

conf

DOI

10.1109/CASSET.2004.1322922

Filename

1322922