NDLI: Type-II hybrid ARQ schemes with block coded modulation

Content Provider	IEEE Xplore Digital Library
Author	Al-Sanie, K.M.
Copyright Year	1995
Description	Author affiliation: Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia (Al-Sanie, K.M.)
Abstract	In this paper, we present a new type-II hybrid ARQ scheme. This scheme employs block coded modulation (BCM) for error-correction and a linear block code for error-defection. This scheme is referred to as the BCM-ARQ scheme. Rate 1/2 block code with QPSK as error-correction code is considered. Computer simulation is used to evaluate the throughout of the proposed scheme. In comparison with the classical ARQ schemes, the proposed ARQ scheme provides enhanced throughout under high probability of error conditions without any increase in the bandwidth. A BCM-ARQ scheme with combining of successive received blocks is also introduced. In this scheme, the decoder for error correction operates on a combination of all received sequences for a block rather than only on the most recent received one. It is shown that blocks combining further improves the throughput of the BCM-ARQ scheme for higher channel error rate.
Starting Page	463
Ending Page	467
File Size	432743
Page Count	5
File Format	PDF
ISBN	0780325796
DOI	10.1109/SICON.1995.526330
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-07-03
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic repeat request Modulation coding Computer errors Block codes Quadrature phase shift keying Error correction codes Computer simulation Bandwidth Decoding Error correction
Content Type	Text
Resource Type	Article

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