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|Title:||Hybrid ARQ schemes for point-to-multipoint communication over nonstationary broadcast channels||Authors:||Deng, Robert H.||Issue Date:||Sep-1993||Citation:||Deng, Robert H. (1993-09). Hybrid ARQ schemes for point-to-multipoint communication over nonstationary broadcast channels. IEEE Transactions on Communications 41 (9) : 1379-1387. ScholarBank@NUS Repository. https://doi.org/10.1109/26.237857||Abstract:||Hybrid automatic-repeat-request (ARQ) error control schemes make use of both error detection and error correction in order to achieve high throughput and low undetected error probabilities on two way channels. This paper proposes two hybrid ARQ schemes, termed hybrid go-back-N (HGB-N) and hybrid selective-repeat (HSR), for point-to-multipoint communications over broadcast channels. Both schemes incorporate a concatenated code for error correction and error detection. The performance study of the hybrid schemes is based on a two-state Markov model of a burst noise channel. An analytic solution is derived for the throughput efficiency of the HSR scheme, while approximations and computer simulation are used to evaluate the throughput efficiency of the HGB-N scheme. It is shown that the proposed point-to-multipoint hybrid ARQ schemes perform considerably better than the corresponding pure ARQ schemes in which a block code is used for error detection only, especially in environments with a large number of receivers and large channel roundtrip delays, such as satellite broadcast links.||Source Title:||IEEE Transactions on Communications||URI:||http://scholarbank.nus.edu.sg/handle/10635/80550||ISSN:||00906778||DOI:||10.1109/26.237857|
|Appears in Collections:||Staff Publications|
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