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Authors:
Hironori Tanaka
Yasunori Iwanami
Keywords: NB RCP LDPC code; Hybrid-ARQ; Decode and Forward Relay; MIMO-OFDM; Symbol-LLR.
Abstract:
In this paper, an NB RCP LDPC (Non-Binary Rate-Compatible-Punctured Low Density Parity Check) code is designed over the extended Galois Field. The designed NB RCP LDPC code is applied to the type II HARQ (Hybrid Automatic Repeat reQuest) with Decode and Forward (DF) relay using MIMO-OFDM modulation. The designed code enables us to decrease the coding rate with incremental redundancy for each retransmission in HARQ. The retransmission is made by the DF relay after its successful decoding. We have verified through computer simulations that the proposed type II HARQ scheme with DF relay greatly improves the throughput and average retransmission characteristics compared with the scheme without DF relay.
Pages: 272 to 277
Copyright: Copyright (c) IARIA, 2012
Publication date: June 24, 2012
Published in: conference
ISSN: 2308-4219
ISBN: 978-1-61208-203-5
Location: Venice, Italy
Dates: from June 24, 2012 to June 29, 2012