tailieunhanh - Báo cáo hóa học: " TCP-M: Multiflow Transmission Control Protocol for Ad Hoc Networks"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: TCP-M: Multiflow Transmission Control Protocol for Ad Hoc Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2006 Article ID 95149 Pages 1-16 DOI WCN 2006 95149 TCP-M Multiflow Transmission Control Protocol for Ad Hoc Networks Nagaraja Thanthry Anand Kalamkar and Ravi Pendse Department of Electrical and Computer Engineering Wichita State University 1845 N Fairmount Wichita KS 67260 USA Received 2 August 2005 Revised 18 February 2006 Accepted 13 March 2006 Recent research has indicated that transmission control protocol TCP in its base form does not perform well in an ad hoc environment. The main reason identified for this behavior involves the ad hoc network dynamics. By nature an ad hoc network does not support any form of quality of service. The reduction in congestion window size during packet drops a property of the TCP used to ensure guaranteed delivery further deteriorates the overall performance. While other researchers have proposed modifying congestion window properties to improve TCP performance in an ad hoc environment the authors of this paper propose using multiple TCP flows per connection. The proposed protocol reduces the influence of packet drops that occurred in any single path on the overall system performance. The analysis carried out by the authors indicates a significant improvement in overall performance. Copyright 2006 Nagaraja Thanthry et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION The transmission control protocol TCP is the most widely used transport layer protocol in the networking world. Many of the features supported by the TCP were developed based on a wired network environment although now they are also being used in wireless networks. It has been observed that the TCP does not perform well in a wireless network environment due to such issues as link .

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