A Study on Local Retransmission Timeout of AT-Snoop Protocol 


Vol. 30,  No. 4, pp. 218-225, Apr.  2005


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  Abstract

Although Snoop protocol can enhance TCP throughput efficiently in a wired-cum-wireless environment, it has a problem in performing local packet retransmissions under a burst error-prone wireless link. AT-Snoop protocol is proposed to cope with this Snoop protocol's problem by adopting adaptive timer. In this paper, TCP throughputs of AT-Snoop protocol have been analyzed with varying wireless link conditions and the ways of setting parameters of AT-Snoop protocol for higher TCP throughput are found out through computer simulations. From the simulation results, AT-Snoop protocol's two parameters, local retransmission threshold value and local retransmission timeout value, are closely related with the fading changing rate. To get higher TCP throughput, local retransmission threshold value and local retransmission timeout value should be set to a little bit larger values than average WSRTT(Wireless Smoothed Round Trip Time) and mean bad period of the wireless link, respectively.

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  Cite this article

[IEEE Style]

Y. b. Cho and S. j. Cho, "A Study on Local Retransmission Timeout of AT-Snoop Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 218-225, 2005. DOI: .

[ACM Style]

Yong bum Cho and Sung joon Cho. 2005. A Study on Local Retransmission Timeout of AT-Snoop Protocol. The Journal of Korean Institute of Communications and Information Sciences, 30, 4, (2005), 218-225. DOI: .

[KICS Style]

Yong bum Cho and Sung joon Cho, "A Study on Local Retransmission Timeout of AT-Snoop Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 218-225, 4. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880