A.M. Abdelrahman
Faculty of Engineering and Technology, Multimedia University, Malaysia
M.S. Abdalla
Faculty of Engineering and Technology, Multimedia University, Malaysia
B.M. Ali
Computer and Communication System Engineering, University Putra Malaysia
V. Prakash
Computer and Communication System Engineering, University Putra Malaysia
R.K.Z. Sabudin
Computer and Communication System Engineering, University Putra Malaysia
ABSTRACT
Recent growth of the Internet has led the development of services over satellites. Basically, the TCP was proposed as a common transport protocol for the internet over wired networks, but for wireless further modifications are needed. Thus this paper proposes an Enhanced Selective Acknowledgments (ESACK) mechanism to improve the performance of TCP over LEO satellite links. In particular the ESACK detects the congestion by considering losses in two consecutive windows. It assumes that losses in the first window may occur due to transmission errors or handoff, but when losses appears in the second window it considers the possibility of network congestion. The performance of the ESACK has been evaluated extensively over LEO satellites. The results show that the ESACK provides higher congestion window than that of the SACK, which results in improving the effective throughput and reducing the total transmission time. In addition, the ESACK supports fairness among multiple connections.
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How to cite this article
A.M. Abdelrahman, M.S. Abdalla, B.M. Ali, V. Prakash and R.K.Z. Sabudin, 2002. Improving the Performance of TCP in LEO Satellite Environment. Information Technology Journal, 1: 250-254.
DOI: 10.3923/itj.2002.250.254
URL: https://scialert.net/abstract/?doi=itj.2002.250.254
DOI: 10.3923/itj.2002.250.254
URL: https://scialert.net/abstract/?doi=itj.2002.250.254
REFERENCES
- Kevin, F. and F. Sally, 1996. Simulation-based comparisons of Tahoe, Reno and SACK TCP. Comput. Commun. Rev., 26: 5-21.
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