Performance of a knockout switch for multimedia satellite communications

Author

Le-Ngoc, Tho ; Bui, Tien Hy ; Hachicha, Mohamed

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

3

fYear

1997

fDate

3-8 Nov 1997

Firstpage

1761

Abstract

This paper investigates the performance of a multiple-beam satellite communications system using an on-board knockout switch to support multimedia services. Aggregate voice or video traffic is modeled as a 2-state Markov modulated Poisson process (MMPP) while two models for aggregate data traffic, MMPP and Pareto-modulated Poisson process (PMPP), are used to examine the effects of traffic burstiness and long-range dependent behavior. Multiple-frequency time division multiple access (MF-TDMA) is used on the uplink in conjunction with a dynamic capacity allocation scheme. Higher priority is given to voice, and video realtime traffic to avoid delay variation. An on-board downlink queue for jitter-tolerant data is provided to achieve high statistical multiplexing gain. Simulation results show that packet loss due to the knockout contention scheme is much lower than that due to the limited capacity on the uplink and downlink. This makes the knockout architecture attractive for on-board switching to achieve low complexity

Keywords

Markov processes; Poisson distribution; multimedia communication; packet switching; queueing theory; satellite communication; telecommunication traffic; time division multiple access; 2-state Markov modulated Poisson process; Pareto-modulated Poisson process; aggregate data traffic; aggregate video traffic; aggregate voice traffic; dynamic capacity allocation; jitter-tolerant data; knockout contention scheme; knockout switch; long-range dependence; multimedia satellite communications; multiple-beam satellite communications system; multiple-frequency time division multiple access; on-board downlink queue; on-board packet switching; packet loss; simulation results; statistical multiplexing gain; traffic burstiness; Aggregates; Artificial satellites; Communication switching; Delay; Downlink; Frequency; Multimedia communication; Multimedia systems; Packet switching; Quality of service; Satellite communication; Switches; Time division multiple access; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-4198-8

Type

conf

DOI

10.1109/GLOCOM.1997.644567

Filename

644567