NDLI: Adaptive Hybrid ARQ in Gaussian and Turbo Coded Systems

Content Provider	IEEE Xplore Digital Library
Author	Guosen Yue Xiaodong Wang
Copyright Year	2008
Description	Author affiliation: NEC Lab. America, Inc., Princeton, NJ (Guosen Yue) \|\| Dept. of Electr. Eng., Columbia Univ., New York, NY (Xiaodong Wang)
Abstract	We consider the design of adaptive hybrid automatic retransmission request (ARQ) with incremental redundancy (IR) in which the transmission rates of different blocks in one hybrid ARQ process can be different. The throughput of adaptive IR hybrid ARQ in block fading channels is formed based on the renewal-reward theorem. Two types of input signals are considered, namely, Gaussian inputs and practical turbo coded modulation. For Gaussian inputs, the error probability after each transmission is obtained from the outage rate. For turbo coded modulation, we obtain the error rate after each transmission block by applying union-Bhattacharyya (UB) bound for parallel channels. The throughput optimization is then formed to seek the optimal transmission rates. The results show that adaptive IR HARQ provides higher throughput than non-adaptive IR HARQ and chase combining in the moderate-to-high SNR region.
Starting Page	1
Ending Page	5
File Size	182997
Page Count	5
File Format	PDF
ISBN	9781424423248
ISSN	1930529X
DOI	10.1109/GLOCOM.2008.ECP.729
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic repeat request Turbo codes Throughput Modulation coding Decoding Error analysis Redundancy Transmitters Laboratories National electric code
Content Type	Text
Resource Type	Article

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