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Title: Hybrid ARQ schemes employing coded modulation and sequence combining
Authors: Deng, Robert H. 
Issue Date: Jun-1994
Citation: Deng, Robert H. (1994-06). Hybrid ARQ schemes employing coded modulation and sequence combining. IEEE Transactions on Communications 42 (6) : 2239-2245. ScholarBank@NUS Repository.
Abstract: In this paper, we propose and analyze two hybrid automatic-repeat-request (ARQ) schemes employing bandwidth efficient coded modulation and coded sequence combining. In the first scheme, a trellis-coded modulation (TCM) is used to control channel noise; while in the second scheme a concatenated coded modulation is employed. The concatenated coded modulation is formed by cascading a Reed-Solomon (RS) outer code and a coded modulation (BCM) inner code. In both schemes, the coded modulation decoder, by performing sequence combining and soft-decision maximum likelihood decoding, makes full use of the information available in all received sequences corresponding to a given information message. It is shown, by means of analysis as well as computer simulations, that both schemes are capable of providing high throughput efficiencies over a wide range of signal-to-noise ratios. The schemes are suitable for large file transfers over satellite communication links where high throughput and high reliability are required.
Source Title: IEEE Transactions on Communications
ISSN: 00906778
Appears in Collections:Staff Publications

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