A comparative study of packet combining based error recovery schemes for wireless networks. (26th August 2014)

• Record Type: Journal Article
• Authors: Wang, Sheng–Shih; Lee, Pei–Chun; Lin, Kan–Yen; Yeh, Tzu–Chang
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 16:Number 3(2014)
• Page Start: 183
• Page End: 192
• Publication Date: 2014-08-26
• Subjects: packet combining -- error recovery -- ARQ -- automatic repeat request -- FEC -- forward error correction -- wireless networks -- retransmission reduction -- simulation; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

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.