Title: A comparative study of packet combining based error recovery schemes for wireless networks

Authors: Sheng-Shih Wang; Pei-Chun Lee; Kan-Yen Lin; Tzu-Chang Yeh

Addresses: Department of Information Management, Minghsin University of Science and Technology, Xinfeng, 30401, Hsinchu, Taiwan ' Department of Information Management, Minghsin University of Science and Technology, Xinfeng, 30401, Hsinchu, Taiwan ' Department of Information Management, Minghsin University of Science and Technology, Xinfeng, 30401, Hsinchu, Taiwan ' Department of Information Management, Minghsin University of Science and Technology, Xinfeng, 30401, Hsinchu, Taiwan

Abstract: To provide reliable communications in wireless environments, two fundamental error control mechanisms, automatic repeat request (ARQ) and forward error correction (FEC) are proposed. However, the ARQ mechanism may suffer frequent retransmissions and the FEC mechanism incurs bandwidth overhead. To reduce the number of retransmissions and support efficient correction, previous studies have proposed numerous packet combining based error recovery schemes. This study investigates the recovery performance of three packet combining based error recovery schemes, including the extended ARQ (EARQ), the merge strategy in the simple packet combining (SPaC-M), and the destination packet (DPC) schemes through the mathematical analysis and simulations. Results present that the EARQ outperforms the SPaC-M and the DPC in recovery speed in case of a large packet length and a high bit error rate. However, the EARQ is not suggested if the space overhead is the major consideration.

Keywords: packet combining; error recovery; ARQ; automatic repeat request; FEC; forward error correction; wireless networks; retransmission reduction; simulation.

DOI: 10.1504/IJAHUC.2014.064422

International Journal of Ad Hoc and Ubiquitous Computing, 2014 Vol.16 No.3, pp.183 - 192

Received: 11 Jan 2013
Accepted: 24 Apr 2013
Published online: 25 Aug 2014 *

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