Hybrid ARQ with Cross-Packet Channel Coding

We describe hybrid automatic repeat request/forward error correction (H-ARQ) with cross-packet channel coding which extends current H-ARQ schemes for point-to-point communications. In contrast to current H-ARQ schemes, the transmission of two consecutive packets of information bits is considered joi...

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Bibliographic Details
Published in:IEEE communications letters 2007-05, Vol.11 (5), p.434-436
Main Authors: Hausl, C., Chindapol, A.
Format: Article
Language:English
Subjects:
Applied sciences
Automatic repeat request
Channel coding
Channels
Coders
Coding
Coding, codes
Decoders
Delay
Diversity methods
Encoders
Error analysis
Exact sciences and technology
Fading
Forward error correction
Gain
Information, signal and communications theory
Iterative decoding
Redundancy
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Transmitters
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Description
Summary:We describe hybrid automatic repeat request/forward error correction (H-ARQ) with cross-packet channel coding which extends current H-ARQ schemes for point-to-point communications. In contrast to current H-ARQ schemes, the transmission of two consecutive packets of information bits is considered jointly. If a retransmission for the first packet is necessary, we encode the first and a second packet jointly. For fading channels, this allows diversity gain from retransmissions without decreasing the total code rate. We describe an encoder and a decoder which can be decoded iteratively for a system with H-ARQ with cross-packet channel coding
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2007.061186