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Optimized TCP Congestion Control Over a Wired Network

Optimized TCP Congestion Control Over a Wired Network

Jehan Dastagir, Muhammad Amir*, Bilal Ur Rehman, Shahid Hameed and Majad Ashraf

Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan.

*Correspondence: Muhammad Amir, Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Khyber Pakhtunkhwa, Pakistan; Email: amir@nwfpuet.edu.pk 

ABSTRACT

Congestion control in networks is prioritized for maintaining high and error free data rates. The work in this paper directly investigates possible attainment of optimized TCP congestion control over wired networks through a proposed modification done to one of the existing TCP protocols. Firstly, the proposed approach looks into various queue limits e.g. Drop Tail and RED. Evidently, a comparison of these two queue limits vividly demonstrates that RED demonstrates a better performance when it comes to attainment of optimized TCP congestion control. This investigation is naturally followed by simulating different TCP versions such as TCP Tahoe, TCP Sack, TCP NewReno, TCP Reno and TCP Westwood for checking and comparing their effective resource utilization such as network Throughputs, comparative bandwidths, retransmission rates and window sizes. Simulations in this regard were carried through using NS-2 (Network Simulator-2) simulation software. From simulation results, as evident in this paper, TCP Westwood was found to be the best candidate for innovation out of the mentioned flavors based on its output performance. The most active objective of the proposed research presented in this paper was to modify the already chosen TCP Westwood protocol and to come up with a new variant of it proposed here namely as “TCP New-Westwood” for providing a higher degree of TCP congestion control.
 

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Pakistan Journal of Zoology

October

Vol. 53, Iss. 5, Pages 1603-2000

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