Accurate available bandwidth estimation in IEEE 802.11-based ad hoc networks

被引：53
|
作者：
Zhao, Haitao [1 ]
Garcia-Palacios, Emiliano [2 ]
Wei, Jibo [1 ]
Xi, Yong [1 ]
机构：
[1] Natl Univ Def Technol, Sch Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
[2] Queens Univ Belfast, ECIT, Belfast BT3 9DT, Antrim, North Ireland
来源：
COMPUTER COMMUNICATIONS | 2009年 / 32卷 / 06期
关键词：
Ad hoc networks; IEEE; 802.11; Available Bandwidth ("AB"); ADMISSION CONTROL; QUALITY; SUPPORT;
D O I：
10.1016/j.comcom.2008.12.031
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Quality of Service (QoS) support in IEEE 802.11-based ad hoc networks relies on the networks' ability to estimate the available bandwidth on a given link. However, no mechanism has been standardized to accurately evaluate this resource. This remains one of the main issues open to research in this field. This paper proposes an available bandwidth estimation approach which achieves more accurate estimation when compared to existing research. The proposed approach differentiates the channel busy caused by transmitting or receiving from that caused by carrier sensing, and thus improves the accuracy of estimating the overlap probability of two adjacent nodes' idle time. Simulation results testify the improvement of this approach when compared with well known bandwidth estimation methods in the literature. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1050 / 1057
页数：8
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