Delay-throughput and buffer utilization characteristics of some statistical multiplexers

Karim, M.R. (1987) Delay-throughput and buffer utilization characteristics of some statistical multiplexers. AT&T Technical Journal, 66 (2). pp. 55-69. ISSN 8756-2324,

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This paper presents the delay-throughput and buffer utilization characteristics of a few statistical multiplexers. Two of the various schemes that may be used to access the multiplexer are considered: the point-to-point access scheme where the traffic is carried between each user and the multiplexer over a separate link in a star topology, and the carrier sense multiple access protocol with collision detection (CSMA/CD) that is used over a shared communication link. Results from computer simulations show that for the n multiplied by 1 statistical multiplexer using the star topology, the delay and buffer size utilized increase exponentially with the channel utilization factor rho . The delay-throughput characteristics of a well designed multiplexer using the CSMA/CD access protocol are comparable to those of the n multiplied by 1 multiplexer based on the star topology. With the CSMA/CD protocol, as the packet size is increased, the delay normalized to the packet size, while a function of rho , first decreases and eventually tends to a limit.

Item Type: Article
Additional Information: Department of Civil Engineering, Faculty of Engineering Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Multiplexing, Channel utilization factor, Delay-throughput characteristics, Packet size, Shared communication link, Statistical multiplexers, Computer networks
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 02 Jan 2014 06:58
Last Modified: 21 Oct 2014 02:39

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