TCP performance and its improvement over wireless links

Author

Pan, Jianping ; Mark, Jon W. ; Shen, Xuemin

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

1

fYear

2000

fDate

2000

Firstpage

62

Abstract

TCP performs reasonably well over the Internet where packet losses are mainly due to network congestion. However, TCP suffers significant throughput degradation over hybrid wireless/IP networks where packet losses are also due to transmission errors in wireless segments and during end-host handovers. In this paper, the micro-scale behavior and packet-level performance of four popular TCP variants over wireless links are assessed, and a modified TCP sender which incorporates a heuristic segment-in-flight estimation algorithm to improve the TCP throughput is proposed. Extensive simulations show that the modified TCP achieves better end-to-end performance, and still keeps the fairness and the compatibility with ordinary TCP variants

Keywords

Internet; delays; land mobile radio; packet radio networks; parameter estimation; radio links; transport protocols; Internet; TCP performance; compatibility; end-host handovers; end-to-end delay; fairness; heuristic segment-in-flight estimation algorithm; hybrid wireless/IP networks; micro-scale behavior; modified TCP; network congestion; packet losses; packet-level performance; throughput degradation; transmission errors; wireless links; Cellular networks; Computer errors; Degradation; Heuristic algorithms; IP networks; Logic; Propagation losses; Protocols; Throughput; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-6451-1

Type

conf

DOI

10.1109/GLOCOM.2000.891683

Filename

891683