Title :
Broadband satcom system for multimedia services
Author :
Huang, Jun ; Tho-Le Ngoc ; Hayes, Jeremiah F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
A broadband satellite communications system using an on-board packet switch to support multimedia services is proposed. A dynamic resource allocation strategy based on a tunable leaky bucket scheme is suggested to achieve an efficient utility of system capacity and an acceptable ATM cell loss probability in the on-board down-link queue. An analytic model based on matrix analytic techniques to evaluate the system performance is developed. Heterogeneous multimedia traffic sources are modeled as Markov modulated Poisson processes with diverse structures and parameters. Numerical results show that the dynamic resource allocation strategy in conjunction with the on-board packet switch can provide a large statistical multiplexing gain. Effects of the token rates and bucket depths on the ATM cell delay and cell loss probability in both on-ground and on-board buffers are presented
Keywords :
Markov processes; asynchronous transfer mode; broadband networks; delays; matrix algebra; modulation; multimedia communication; packet switching; probability; queueing theory; radio links; satellite communication; stochastic processes; telecommunication traffic; ATM cell delay; ATM cell loss probability; Markov modulated Poisson processes; analytic model; broadband satcom system; broadband satellite communications system; bucket depths; dynamic resource allocation; heterogeneous multimedia traffic sources; matrix analytic techniques; multimedia services; numerical results; on-ground buffers; onboard buffers; onboard downlink queue; onboard packet switch; statistical multiplexing gain; system capacity; system performance evaluation; token rates; tunable leaky bucket; Asynchronous transfer mode; Broadband communication; Capacity planning; Communication switching; Multimedia systems; Packet switching; Performance analysis; Resource management; Satellite communication; Switches;
Conference_Titel :
Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-3250-4
DOI :
10.1109/ICC.1996.541311
