Publication No 28154

Author(s)

Sigle, R.*; Renger, T.*

Title

Hierarchical scheduling strategies for wireless ATM MAC protocols

Topics

Mobile Communications; Access Networks

Methods

Protocol Engineering; Performance Evaluation

Keywords

FAIR QUEUEING; WIRELESS; SERVICE DISCIPLINE; SCHEDULING; RESOURCE ALLOCATION; MEDIA ACCESS CONTROL; HIERARCHICAL; ATM

Abstract

Wireless ATM networks, which are currently under investigation, promise to support future multimedia applications. The medium access control (MAC) protocol of such systems plays a key role in providing differentiated quality of service (QoS). A variety of proposed MAC protocols use a centrally controlled flexible allocation ot time slots. In order to provide a fair scheduling, the mobile stations must inform the base station about the state ot their queues. This is done by sending so-called request packets. As these updates consume valuable bandwidth, their frequency should be kept as small as possible. The proposed concept of combining hierarchical scheduling with fair queueing strategies requires only a very little number of updates and is insensitive against partially outdated information.

Year

1998

Reference entry

Sigle, R.; Renger, T.
Hierarchical scheduling strategies for wireless ATM MAC protocols
Proceedings of the 3rd Workshop on Personal Wireless Communications (PWC '98), Tokyo, April 1998, pp. 175-182

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