Research: Sub-block retransmission ARQ schemes

Authors:
Youngsup Kim;Saewoong Bahk
Affiliations:
School of Electrical Engineering, Seoul National University, Seoul, South Korea;School of Electrical Engineering, Seoul National University, Seoul, South Korea
Venue:
Computer Communications
Year:
1998

Citing 2
Cited 0

Error control systems for digital communication and storage

Error control systems for digital communication and storage
ATM-based transport architecture for multiservices wireless personal communication networks

IEEE Journal on Selected Areas in Communications

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Abstract

In this paper we propose a sub-block retransmission scheme for ARQ and hybrid ARQ. When the channel is quiet the sub-block retransmission scheme behaves like a conventional ARQ or hybrid ARQ scheme. As the channel becomes increasingly noisy, the data block is divided into smaller sub-blocks for transmission. Each sub-block is encoded for error control by an appropriate shortened code of which the code length is adapted to the corresponding channel BER. The received block is checked for errors sub-block by sub-block. The proposed sub-block retransmission scheme provides improved throughput over conventional ARQ schemes by retransmitting only the naked sub-blocks in the occurrence of errors. An example of transferring ATM cells is considered for simulation study.