Explicit delay jitter bounds for real-time traffic over wireless ATM

被引：1

作者：

Le Pocher, H ^{[1
]}

Leung, VCM ^{[1
]}

Gillies, D ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

COMPUTER NETWORKS | 1999年 / 31卷 / 9-10期

关键词：

wireless asynchronous transfer mode; service scheduling; real-time traffic; quality of service; cell delay variation;

D O I：

10.1016/S1389-1286(98)00011-5

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A high performance, frame-based, real-time ATM scheduler is proposed for the wireless multimedia environment. We introduce the Delayed Frame Queueing (DFQ) scheduling protocol which only defines the service priorities, deadlines and eligibility times of queued cells. The DFQ protocol does not define the particular fashion in which a mobile or base station gains access to the shared transmission medium; thus, we present DFQ as a generic protocol which can be combined with numerous types of MAC protocols. Key features of our strategy are its algorithmic and architectural simplicity, its non-ad hoc scheduling approach, and its unified treatment of all real-time streams at all service queues within a wireless ATM network. In addition, the delay and jitter bounds are uncoupled. In this way, end-to-end jitter can be tightly controlled even if medium access requires long indeterminate waiting durations. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1029 / 1048

页数：20

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