Characterization and observation of (transmission control protocol) TCP-Vegas performance with different parameters over (Long term evolution) LTE networks

Ghassan A. Abed, Mahamod Ismail, Kasmiran Jumari

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Despite the larger performance and higher throughput compared to transmission control protocol (TCP) Reno, TCP Vegas still has a few obstacles to be deployed in new networks, such as 4G LTE systems (4th Generation, Long term evolution). One of these obstacles is the Vegas congestion control that is not used in all available bandwidth capacity of the network path and which causes minimization in packet quantity transferred from source to destination. However, many researches have shown unfair treatment of TCP Vegas connections when they compete with Reno connections. So, Vegas need more developments and more modifications to be efficient over bidirectional links with unbalanced traffic, and on wireless links. TCP-Vegas is a congestion control algorithm that reduces queuing and packet loss, and thus reduces latency and increases overall throughput, by carefully matching the sending rate to the rate at which packets are successfully being drained by the network. This paper presents results from a series of simulation experiments designed to study TCP Vegas performance in LTE network model using NS-2 network simulator. The characterization and analysis of Vegas behavior performed using the main two parameters, alpha and beta, to configure the congestion window (cwnd) phases. After used multiple values, the configuration results show that TCP Vegas perform better than TCP Reno.

Original languageEnglish
Pages (from-to)2003-2010
Number of pages8
JournalScientific Research and Essays
Volume6
Issue number9
Publication statusPublished - 4 May 2011

Fingerprint

Transmission control protocol
Long Term Evolution (LTE)
local thermodynamic equilibrium
traffic
Observation
Research
congestion
Telecommunication links
Throughput
Congestion control (communication)
Packet loss
Telecommunication traffic
Simulators
simulators
Bandwidth
bandwidth
optimization

Keywords

  • Cwnd
  • Long term evolution (LTE)
  • NS-2
  • TCP-Vegas
  • Transmission control protocol

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Characterization and observation of (transmission control protocol) TCP-Vegas performance with different parameters over (Long term evolution) LTE networks. / Abed, Ghassan A.; Ismail, Mahamod; Jumari, Kasmiran.

In: Scientific Research and Essays, Vol. 6, No. 9, 04.05.2011, p. 2003-2010.

Research output: Contribution to journalArticle

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