Design of diversity-achieving LDPC codes for H-ARQ with cross-packet channel coding

In wireless scenarios an effective protocol to increase the reliability for time-varying channels is the hybrid automatic repeat request (H-ARQ). The H-ARQ scheme with cross-packet channel coding (CPC) is a recently published extension of H-ARQ with several advantages. No full-diversity low-density...

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Bibliographic Details
Main Authors: Duyck, D, Capirone, D, Hausl, C, Moeneclaey, M
Format: Conference Proceeding
Language:English
Subjects:
Automatic repeat request
Channel coding
Equations
Fading
Parity check codes
Receivers
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Summary:In wireless scenarios an effective protocol to increase the reliability for time-varying channels is the hybrid automatic repeat request (H-ARQ). The H-ARQ scheme with cross-packet channel coding (CPC) is a recently published extension of H-ARQ with several advantages. No full-diversity low-density parity-check (LDPC) code design for the whole range of coding rates yielding full-diversity has been published. In this paper the authors provide a new outage behavior analysis and a new structured LDPC code ensemble achieving full-diversity for H-ARQ with CPC by exploiting the rootcheck principle. Simulation results show that the new code design outperforms the previous approaches, providing full-diversity and good coding gain, also at high coding rates.
ISSN:2166-9570
DOI:10.1109/PIMRC.2010.5671785