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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1550

Title: ANALYZING AND PROPOSING A SOLUTION FOR THE INCOMPATIBILITY PROBLEM OF TCP VEGAS
Authors: KERIA, WASSIE
Advisors: Ato Abyot Asalefew
Dr. V.N.V Manoj
Keywords: TCP
TCP Reno
TCP Vegas
Congestion control
Relaxed-Vegas
Copyright: Mar-2008
Date Added: 21-Oct-2008
Publisher: Addis Ababa
Abstract: TCP is a reliable, connection-oriented and sequence-delivery protocol. All applications which require a reliable delivery of data use TCP. TCP-Reno and TCP-Vegas are some of the TCP types created to give a reliable service in the Network. According to different researchers and results of our simulation, it is observed that TCP-Vegas in isolation has better performance with respect to overall network utilization, stability, fairness, throughput and packet loss, but its performance degrades when TCP-Reno connection exists in the Network. So this thesis is trying to address this incompatibility problem of TCP Vegas while working with TCP-Reno and proposing a solution called Relaxed-Vegas. Using a simulation tool (NS2) we examine the detail behaviours of TCP-Reno and TCP-Vegas while working independently and simultaneously. We propose modifications to the currently working algorithm of TCP-Vegas. From the simulation results we compare the performance of the currently used TCP Vegas and the new proposed solution (Relaxed-Vegas). By using Relaxed-Vegas the number of received packets and the throughput (good-put) is raised by 56.87% and the drop of packets is reduced by 17.0%.
Description: A thesis submitted to the school of Graduate studies of Addis Ababa University in partial fulfillment of the requirements for the degree of Masters of Science in Electrical and Computer Engineering (Computer Engineering)
URI: http://hdl.handle.net/123456789/1550
Appears in:Thesis - Computer Engineering

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