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Improving The Performance of Scalable Reliable Multicast over Wired and Wireless Networks using a Retransmission Function

재전송 기능을 이용한 유무선 통합망에서의 Scalable Reliable Multicast 성능 개선

  • Koh, Wan-Ki (Department of Broadcasting & Film, Cheju Halla University)
  • Received : 2016.07.07
  • Accepted : 2016.08.02
  • Published : 2016.08.30

Abstract

This paper presents a method to improve the performance of Scalable Multicast Protocol deployed in wired and wireless network by adding retransmission function on base stations. When using Scalable Multicast Protocol over wireless and wired networks, packet drops on the wireless link produce the initiation of retransmission request packets and the implosion of retransmission packets, which deteriorate the multicast session performance. The efficient reliable multicast mechanism in wireless networks utilizing the retransmission function on the base station is addressed in this paper. We explain the design of a retransmission function which improves the performance of Scalable Multicast Protocol sessions in wireless and wirednetwork. The main idea is to cache Scalable Multicast Protocol packets at the base station and perform local retransmissions across the wireless link. ARENA has been used to simulate and to get performance for reducing signaling overhead and processing delay through the comparison of the proposed function to the Scalable Multicast Protocol.

본 논문에서는 멀티캐스트 패킷 재전송을 담당하는 기능을 기지국에 탑재하여 신뢰성있는 멀티캐스트 전송 프로토콜인 Scalable Multicast Protocol 성능을 개선하고자 한다. 유무선 통합망에서 Scalable Multicast Protocol 동작시, 무선 네트워크에서의 비트 에러나 단말의 이동성으로 패킷 재전송이 많이 발생한다. 이런 재전송 때문에 Scalable Multicast Protocol의 그룹에 제어 메시지 및 재전송 메시지가 증가하게 되며, 이는 또한 Scalable Multicast Protocol 세션 전체 성능을 저하시킨다. 본 논문은 기지국에 무선 환경에 있는 단말의 복구 요구 메시지에 대한 복구 메시지 전송을 담당하는 기능을 추가하여 전체 세션의 성능을 높이고자 한다. ARENA를 이용하여 제안한 방법이 멀티캐스트 세션에의 복구 요구 및 복구 메시지의 수를 줄일 수 있고 멀티캐스트 그룹 세션 전체의 성능을 향상시킬 수 있음을 검증하였다.

Keywords

References

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