Journal ArticleDOI
Generalised type-II hybrid ARQ
Ma Jianhua,Wang Xin-mei +1 more
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TLDR
Results indicate that II-HARQ using DC code gives a good throughput efficiency and some DC codes which have a better DDS than KM codes are designed and Hadamard transform decoding is regarded as a common decoding method.Abstract:
The letter gives general descriptions of II-GHARQ and defines a concept of minimum distance distributed sequence (DDS) which is more exact to represent the error-correcting capability of the codes used in II-GHARQ. Some DC codes which have a better DDS than KM codes are designed and Hadamard transform decoding is regarded as a common decoding method. Both analysis and simulation results indicate that II-HARQ using DC code gives a good throughput efficiency.read more
References
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Journal ArticleDOI
Optimal soft decision block decoders based on fast Hadamard transform
Yair Be'ery,J. Snyders +1 more
TL;DR: An approach for efficient utilization of fast Hadamard transform in decoding binary linear block codes is presented and the availability of these codewords in general, and particularly in some of the most frequently encountered codes, is discussed.
Proceedings Article
A New Error Control Scheme for Hybrid ARO Systems.
TL;DR: In this article, a generalized hybrid ARQ (GH-ARQ) scheme was proposed for adaptive error control in digital communication systems, which utilizes the redundant information available upon successive retransmissions in an efficient manner so as to provide high throughput during poor channel conditions.
Journal ArticleDOI
A New Error Control Scheme for Hybrid ARQ Systems
H. Krishna,Salvatore D. Morgera +1 more
TL;DR: The concept of a generalized hybrid ARQ (GH-ARQ) scheme for adaptive error control in digital communication systems is introduced, which utilizes the redundant information available upon successive retransmissions in an efficient manner so as to provide high throughput during poor channel conditions.
Journal ArticleDOI
Efficient Selective Repeat ARQ Strategies for Very Noisy and Fluctuating Channels
J. Metzner,D. Chang +1 more
TL;DR: This paper investigates memory and selective repeat ARQ techniques when channels in both directions are very noisy, and demonstrates that a difficulty arises when memory ARQ is used in these situations, and proposes a remedy-the similarity test.
Journal ArticleDOI
Soft-decision decoding applied to the generalized type-II hybrid ARQ scheme
TL;DR: The present authors use binary PSK signaling, an additive white Gaussian noise channel, and several relevant code parameter choices in computer simulations to illustrate the improvement in throughput efficiency when soft-decision decoding is used in the GH-ARQ method.