Performance Analysis of TCP with Adaptive Snoop Module in Wired and Wireless Communication Environments

유/무선 통신 환경에서 적응형 Snoop 모듈을 이용한 TCP 성능 분석

  • Kim, Myung-Jin (Dept. of Electronic Engineering, Soonchunhyang University) ;
  • Lim, Sae-Hoon (Dept. of Electronic Engineering, Soonchunhyang University) ;
  • Kim, Doo-Yong (Dept. of Electronic Engineering, Soonchunhyang University) ;
  • Kim, Ki-Wan (Dept. of Electronic Engineering, Soonchunhyang University)
  • 김명진 (순천향대학교 전자공학과) ;
  • 임세훈 (순천향대학교 전자공학과) ;
  • 김두용 (순천향대학교 전자공학과) ;
  • 김기완 (순천향대학교 전자공학과)
  • Received : 2011.08.29
  • Accepted : 2011.09.15
  • Published : 2011.09.30

Abstract

TCP works well in wired networks where packet losses mainly occur due to congestion in data traffic. In wireless networks TCP does not differentiate packet losses from transmission errors or from congestion, which could lead to degrade the network performance. Several methods have been proposed to improve TCP performance over wireless links. Among them the Snoop module working at the base station is the popular method. In this paper, it is shown that the performance of Snoop largely depends upon the transmission link errors and the amount of data traffic. Also, our research shows that the local retransmission timeout value of Snoop can affect throughput. From the simulation results we suggest how to effectively use the Snoop algorithm considering data traffic and transmission link errors. It is expected that the proposed adaptive method will contribute to improving the network performance reducing the burden of the processes for data traffic.

Keywords

References

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