Journal of Communications and Networks

  • 제18권2호
  • /
  • Pages.238-245
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  • 2016
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  • 1229-2370(pISSN)
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  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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A Proxy Acknowledgement Mechanism for TCP Variants in Mobile Ad Hoc Networks

  • Oo, May Zin (Department of Information Technology Engineering of Mandalay Technological University) ;
  • Othman, Mazliza (Faculty of Computer Science and IT of University of Malaya) ;
  • O'Farrell, Timothy (department of Electronic & Electrical Engineering of University of Sheffield)
  • 투고 : 2014.01.23
  • 심사 : 2015.10.01
  • 발행 : 2016.04.30
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초록

A sequence number checking technique is proposed to improve the performance of TCP connections in mobile ad hoc networks. While a TCP connection is initialized, a routing protocol takes the responsibility for checking the hop count between a source and destination pair. If the hop count is greater than a predefined value, the routing protocol decides to use a proxy node. The responsibility of a proxy node is to check the correctness of data packets and inform the missing packets by sending an acknowledgement from a proxy node to the source node. By doing so, the source node is able to retransmit any missing packet in advance without waiting until an end-to-end acknowledgement is received from the destination. Simulation results show that the proposed mechanism is able to increase throughput up to 55% in static network and decrease routing overhead up to 95%in mobile network.

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참고문헌

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