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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/14224

Title: Lossy Forwarding Techniques for Parallel Multihop-Multirelay Systems
Authors: Irawan, Ade
Anwar, Khoirul
Matsumoto, Tad
Keywords: Relay
Partial ARQ
Iterative Decoding
Issue Date: 2015-09
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Magazine name: 2015 IEEE 82nd Vehicular Technology Conference (VTC Fall)
Start page: 1
End page: 5
DOI: 10.1109/VTCFall.2015.7391011
Abstract: This paper proposes a Partial Hybrid Automatic Repeat reQuest (P-HARQ) scheme where the relaying nodes select either forwarding the erroneous packets or requesting retransmission. In contrast to the conventional technique where the erroneous packets is always discarded, the packets found to have errors after decoding are interleaved, re-encoded, and forwarded if relay selects the forwarding mode. This technique is refer to as lossy forwarding. In this paper, the mode selection (either forwarding or requesting retransmission) is based on the confidence indicator (CI). Since the channels are assumed to suffer from block Rayleigh fading, the CI is calculated via online mutual information measurements, block-by- block. Results of computer simulations conducted to confirm the superiority of the proposed P-HARQ technique in terms of bit-error-rate, packet-error-rate and throughput performances in parallel multihop wireless multirelaying systems, are presented.
Rights: This is the author's version of the work. Copyright (C) 2015 IEEE. 2015 IEEE 82nd Vehicular Technology Conference (VTC Fall), 2015, 1-5. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
URI: http://hdl.handle.net/10119/14224
Material Type: author
Appears in Collections:b11-1. 会議発表論文・発表資料 (Conference Papers)

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