A Distributed Procedure for Carrier Sensing Threshold Adaptation in CSMA-Based Mobile Ad Hoc Networks

Author

Fonseca, Benedito J B, Jr.

Author_Institution

Motorola Labs, Schaumburg

fYear

2007

Firstpage

66

Lastpage

70

Abstract

This paper discusses the problem of determining the carrier sense threshold (CS_th) of nodes in a CSMA-based Mobile Ad Hoc Network (MANET) and proposes a practical, fully distributed, CSth adaptation procedure. The procedure enables a node to select its CS_th in order to improve the data throughput of the system by maximizing the number of successful transmissions in its neighborhood. Simulation results show that the procedure is able to improve the data throughput in more than 85% of random topologies. The average throughput improvement over all topologies were 11% and 18% in two different scenarios, with some topologies showing up to 75% data throughput gains.

Keywords

ad hoc networks; carrier sense multiple access; mobile radio; telecommunication network topology; carrier sense multiple access; carrier sensing threshold adaptation; data throughput gain; mobile ad hoc networks; Analytical models; Decoding; Mobile ad hoc networks; Mobile communication; Multiaccess communication; Network topology; Radio transmitters; Signal to noise ratio; Spread spectrum communication; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th

Conference_Location

Baltimore, MD

ISSN

1090-3038

Print_ISBN

978-1-4244-0263-2

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2007.30

Filename

4349679