Journal of Communications and Networks

  • 제12권2호
  • /
  • Pages.174-180
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  • 2010
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  • 1229-2370(pISSN)
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  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

S-ARQ: A New Truncated ARQ for IP-Based Wireless Network

  • Choi, Young-Kyu (Samsung Electronics) ;
  • Oh, Seong-Jun (College of Information and Communications, Korea University) ;
  • Choi, Sung-Hyun (School of Electrical Engineering and the Institute of New Media and Communications (INMC), Seoul National University)
  • 투고 : 2008.07.02
  • 심사 : 2009.12.25
  • 발행 : 2010.04.30
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초록

Automatic Repeat reQuest (ARQ) is a very effective technique against transmission error at the medium access control (MAC) layer. An erroneous MAC protocol data unit can be typically retransmitted within a given limit. In order to improve the IP-level performance, which directly affects the user-perceived quality-of-service (QoS), we propose a new truncated ARQ strategy, called MAC service data unit-based ARQ (S-ARQ), where the finite number of opportunities for retransmissions are shared by multiple fragments out of an IP datagram. We describe how SARQ can be implemented in a practical system, and then propose another variant of S-ARQ employing a functionality called early detection of failure. Basically, we evaluate the performance of SARQ in two different manners. First, assuming i.i.d. error process, we analyze both the probability of the delivery failure and the average delay of IP datagram. Then, we assess the performance of S-ARQ via simulation over a 2-state Markov channel.

키워드

참고문헌

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