Publication No 30000

Author(s)

Charzinski, J.*

Title

Request Contention and Request Polling for the Upstream Media Access Control in ATM Access Networks

Topics

Access Networks; Broadband Networks

Methods

Performance Evaluation

Keywords

POLLING; PERFORMANCE EVALUATION; DELAY; MEDIA ACCESS CONTROL; ACCESS NETWORK; ATM

Abstract

This paper presents a simulation study comparing different mechanisms used in the upstream channel of ATM access networks. In request polling, status information from the access stations is transmitted periodically in minislots dedicated to each access station. In request contention, the access stations use a contention based multiple access scheme with a multi-slot stack contention resolution algorithm for random access to minislots. In addition, in both cases request information is piggy-backed to upstream ATM cells. In a simulation study, request polling and request contention are compared using the same system parameters. It is shown that (1) the optimum stack parameter is greater than three if the round trip delay in the system is taken into account and (2) under most conditions request contention produces longer mean transfer delays and delay quantiles than request polling.

Year

1998

Reference entry

Charzinski, J.
Request Contention and Request Polling for the Upstream Media Access Control in ATM Access Networks
Proceedings of the 4th IFIP International Conference on Broadband Communications (BC '98), Stuttgart, April 1998, pp. 81-92

BibTex file

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Full Text

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