Title :
Comparative performance of the CFDAMA protocol via satellite with various terminal request strategies
Author :
Mitchell, P.D. ; Grace, D. ; Tozer, T.C.
Author_Institution :
Dept. of Electron., York Univ., UK
Abstract :
This paper examines the relative performance of the Combined Free/Demand Assignment Multiple Access (CFDAMA) protocol with different terminal request strategies. A new scheme is proposed employing round robin assignment of request slots (CFDAMA-RR), which is compared with the standard schemes incorporating random, packet accompanied, and Combined Requests (CFDAMA-CR). It is shown that the CFDAMA-RR scheme can offer improved delay/utilisation performance of a satellite channel due to its inherent fairness and contentionless nature. Simulation results are presented with three different source traffic models, Poisson, self-similar (Pareto ON-OFF) and exponential ON-OFF. The results indicate that the ON-OFF nature of a traffic model has a more significant impact on Medium Access Control (MAC) protocol performance than the specific distribution of ON and OFF times
Keywords :
Pareto distribution; Poisson distribution; delay estimation; demand assigned multiple access; exponential distribution; fractals; satellite communication; telecommunication congestion control; telecommunication traffic; CFDAMA protocol; CFDAMA-RR; Combined Free/Demand Assignment Multiple Access protocol; MAC protocol; Pareto ON-OFF model; Poisson model; comparative performance; contention; delay; exponential ON-OFF model; fairness; medium access control; round robin assignment; satellite communication; self-similar model; source traffic models; terminal request strategies; Access protocols; Bandwidth; Channel allocation; Delay; Internet telephony; Media Access Protocol; Quality of service; Satellite broadcasting; Telecommunication traffic; Traffic control;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.966268
