Title :
Snug-Vegas and Snug-Reno: efficient mechanisms for performance improvement of TCP over heterogeneous networks
Author :
Ho, C.-Y. ; Chen, Y.-C.
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Chiao Tung Univ., Hsinchu City, Taiwan
fDate :
4/1/2006 12:00:00 AM
Abstract :
Improving the performance of the traditional TCP in wireless IP communications has been an active research area. The significant cause of packet losses in such heterogenous networks is no longer limited to network congestion. The performance degradation of TCP in wireless and wired-wireless hybrid networks is mainly due to its lack of ability to differentiate the packet losses caused by network congestions from the losses caused by wireless link errors. New variants of TCP Vegas and TCP Reno named Snug-Vegas and Snug-Reno, respectively, are proposed. By using random-loss indications marked by base stations, Snug-Vegas and Snug-Reno may detect random packet losses precisely. Through the packet loss differentiation, Snug-Vegas and Snug-Reno react appropriately to the losses, and based on the simulation results, it is seen that the throughput of connection over heterogeneous networks can be significantly improved.
Keywords :
IP networks; Internet; packet radio networks; radio links; telecommunication congestion control; transport protocols; Snug-Reno; Snug-Vegas; TCP Reno; TCP Vegas; heterogenous network; network congestion; performance improvement; transmission control protocol; wired-wireless hybrid network; wireless IP communication; wireless link;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:20050184