Hybrid ARQ schemes employing coded modulatioin and sequence combining

Publication Type

Journal Article

Publication Date

1-1995

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 block 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

Discipline

Information Security

Research Areas

Information Security and Trust

Publication

IEEE Transactions on Communications

Volume

42

Issue

6

First Page

2239

Last Page

2245

ISSN

0090-6778

Identifier

10.1109/26.293675

Publisher

IEEE

Additional URL

http://dx.doi.org/10.1109/26.293675

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