Title :
Comparison and optimisation of CSMA/CA back-off distribution functions for a low earth orbit satellite link
Author :
Cawood, Andrew D. ; Wolhuter, Riaan
Author_Institution :
Stellenbosch Univ., Stellenbosch
Abstract :
This paper presents a comparison of several random number distributions for use in the back-off random variable, in a CSMA/CA protocol. These distributions are optimised for the specific case of a low earth orbit (LEO) satellite communicating with several ground stations, where the propagation time from satellite to different stations is diverse. The results of using these different distributions are presented, with a proposed Boolean- type distribution shown to be optimal. The results are confirmed using OMNeT++ simulations.
Keywords :
Boolean functions; carrier sense multiple access; random functions; satellite links; telecommunication congestion control; Boolean- type distribution; CSMA-CA back-off distribution functions; CSMA-CA protocol; LEO satellite communication; OMNeT++ simulations; back-off random variable; low earth orbit satellite communication; low earth orbit satellite link; random number distributions; satellite ground stations; Access protocols; Africa; Artificial satellites; Distribution functions; Low earth orbit satellites; Multiaccess communication; Random variables; Satellite broadcasting; Satellite ground stations; Throughput;
Conference_Titel :
AFRICON 2007
Conference_Location :
Windhoek
Print_ISBN :
978-1-4244-0986-0
Electronic_ISBN :
978-1-4244-0987-7
DOI :
10.1109/AFRCON.2007.4401598
