Browse > Article
http://dx.doi.org/10.9728/dcs.2014.15.2.147

The Study on New Wireless TCP-Westwood Algorithm having Available Bandwidth Estimation within Allowable Range  

Yoo, Chang-Yeol (강원대학교 IT대학 전자통신공학과)
Kim, Dong-Hoi (강원대학교 IT대학 전자통신공학과)
Publication Information
Journal of Digital Contents Society / v.15, no.2, 2014 , pp. 147-154 More about this Journal
Abstract
There have been company researches for TCP-Westwood algorithms in wireless TCP environment with high packet loss rate. Because the TCP-Westwood algorithm adjusts the congestion window according to the ABE(Available Bandwidth Estimation), the algorithm has a problem which the accuracy of ABE decreases as the error rate increases. To solve such a problem, the proposed scheme in this paper adopts the existing packet pattern based algorithm that the ABE is ignored when the arriving interval time of ACK is longer than a given interval time and uses new algorithm that the ABE is reallocated to a given allowable ABE when the ABE is over the allowable range. The proposed scheme shows the simulation result that the ABE is closest to the setting bandwidth for simulation compared to the existing algorithms.
Keywords
Wireless TCP; TCP-Westwood Algorithm; Available Bandwidth Estimation; Congestion Window; Slow Start Threshold;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Min-Woo Park and Hyun-Seung Choo, "Analysis and Modified Algorithm Proposal of TCP Westwood in Next Generation Network", Conference proceeding of Korea Society for Internet Information, Vol. 8, No. 2, pp.27-30,2007.11.
2 URL:http://c3lab.poliba.it/index.php/C3Lab TCP-Westwood
3 Moonsoo Kang and Seokjoo Shin, "Enhanced Bandwidth Estimation for TCP Westwood", Journal of Korea Society for Internet Information, Vol. 9, No 6, pp. 179-188, 2008.12.
4 S. Keshav, "A Control-Theoretic Approach to Flow Control," Proc.ACM SIGCOMM, pp. 3-15, Sept. 1991.
5 Behrouz A. Forouzan, "TCP/IP Protocol Suite," Second Edition, McGraw-Hill, pp.297-335, 2003.
6 UCB/LBNL/VINT Network Simulator, URL:http//www.isi.edu/ns-nam/ns.
7 The application of NS-2 Network Simulation, Young-Min Jang, Hongrung Publishing Company.
8 H. Balakrishnam, S. Seshan, E. Amir, and R. Katz, "Improving TCP/IP performance over wireless net works," In First ACM International Conference on Mobile Computing and Networking (MOBICOM), pp. 469-481. November, 1995
9 A. Bakre and B. R. Badrinath, "Indirect TCP for Mobile Host," 15th International Conference on Distributed Computing Systems, 1995.
10 Chang-Hee Kim, "A Study on Improving TCP Performance in Wireless Network," Journal of Digital Contents Society, Vol. 10, No. 2, pp. 279-289, June 2009.
11 C. Casetti, M. Gerla, S. Mascolo, M. Y. Sanadidi and R. Wang, "TCP Westwood: Bandwidth Estimation for Enhanced Transport over Wireless Links," In Proceedings of ACM Mobicom 2001, pp. 287-297, Rome, Italy, July 16-21 2001.
12 Mi-Young Park, Sang-Hwa Chung and Yun-Sung Lee, "A Sender-based Packet Loss Differentiation Algorithm based on Estimating the Queue Usage between a TCP sender/receiver",The Journal of Korea society of Computer Information, Vol. 16, No. 1, pp. 133-142, 2011.01.   과학기술학회마을   DOI   ScienceOn
13 Nam-jin Cho and Sung-Chang Lee, "Performance Improvement of WTCP by Differentiated Handling of Congestion and Random Loss", The Journal of the Institute of Electronics Engineers of Korea, TCP Session, Vol. 34. No. 9, pp. 30-38, 2008.9.