A link layer adaptive pacing scheme for improving performance of Wireless Mesh Networks

Author

Franklin, A. Antony ; Ramana, B. Venkata ; Murthy, C. Siva Ram

Author_Institution

Dept. of Comput. Sci. & Eng., Indian Inst. of Technol. Madras, Chennai

fYear

2007

fDate

April 30 2007-May 2 2007

Firstpage

1

Lastpage

5

Abstract

In this paper, we propose an adaptive pacing scheme at the link layer for IEEE 802.11 based multihop wireless networks. Our objective is to improve the performance of higher layer protocols without any modifications to them. Our adaptive pacing scheme estimates the four-hop transmission delay in the network path without incurring any additional overheads, and accordingly paces the packets to reduce the contention in the network. We implemented the Link layer adaptive pacing scheme in ns-2.29 network simulator and extensively studied its performance for both user datagram protocol (UDP) and transmission control protocol (TCP) traffic in different network scenarios. In all the cases our scheme shows a significant improvement in the performance of both UDP and TCP.

Keywords

telecommunication traffic; transport protocols; wireless LAN; IEEE 802.11; TCP traffic; UDP; higher layer protocol; link layer adaptive pacing scheme; ns-2.29 network simulator; transmission control protocol; user datagram protocol; wireless mesh network; Communication system traffic control; Delay estimation; Performance loss; Spine; Spread spectrum communication; Streaming media; Traffic control; Transport protocols; Wireless mesh networks; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Sarnoff Symposium, 2007 IEEE

Conference_Location

Nassau Inn, Princeton, NJ

Print_ISBN

978-1-4244-2483-2

Type

conf

DOI

10.1109/SARNOF.2007.4567329

Filename

4567329