tailieunhanh - Báo cáo hóa học: " Research Article Improving SCTP Performance by Jitter-Based Congestion Control over Wired-Wireless 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: Research Article Improving SCTP Performance by Jitter-Based Congestion Control over Wired-Wireless Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011 Article ID 103027 13 pages doi 2011 103027 Research Article Improving SCTP Performance by Jitter-Based Congestion Control over Wired-Wireless Networks Jyh-Ming Chen Ching-Hsiang Chu Eric Hsiao-Kuang Wu Meng-Feng Tsai and Jian-Ren Wang Department of Computer Science and Information Engineering National Central University Jhongli 32001 Taiwan Correspondence should be addressed to Eric Hsiao-Kuang Wu hsiao@ Received 22 August 2010 Revised 8 January 2011 Accepted 20 January 2011 Academic Editor Fabrizio Granelli Copyright 2011 Jyh-Ming Chen 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. With the advances of wireless communication technologies wireless networks gradually become the most adopted communication networks in the new generation Internet. Computing devices and mobile devices may be equipped with multiple wired and or wireless network interfaces. Stream Control Transmission Protocol SCTP has been proposed for reliable data transport and its multihoming feature makes use of network interfaces effectively to improve performance and reliability. However like TCP SCTP suffers unnecessary performance degradation over wired-wireless heterogeneous networks. The main reason is that the original congestion control scheme of SCTP cannot differentiate loss events so that SCTP reduces the congestion window inappropriately. In order to solve this problem and improve performance we propose a jitter-based congestion control scheme with end-to-end semantics over wired-wireless networks. Besides we solved ineffective jitter ratio problem which may cause original jitter-based congestion control scheme to misjudge congestion loss as wireless loss. Available bandwidth estimation scheme will