Voice Communications over 802.11 Ad Hoc Networks: Modeling, Optimization and Call Admission Control

被引：2
|
作者：
Xu, Changchun [1 ]
Xu, Yanyi [1 ]
Liu, Gan [2 ]
Liu, Kezhong [3 ]
机构：
[1] Naval Univ Engn, Comp Network Ctr, Wuhan, Peoples R China
[2] Huazhong Univ Sci & Technol, Elect & Informat Engn Dept, Wuhan Natl Lab Optoelect, Wuhan, Peoples R China
[3] Wuhan Univ Technol, Sch Nav, Wuhan, Peoples R China
来源：
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS | 2010年 / E93D卷 / 01期
关键词：
IEEE; 802.11; ad hoc networks; 3D Markov chain; queuing analysis; voice communications; call admission control; DISTRIBUTED COORDINATION FUNCTION; IEEE-802.11;
D O I：
10.1587/transinf.E93.D.50
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Supporting quality-of-service (QoS) of multimedia communication, over IEEE 802.11 based ad hoc networks is a challenging task. This paper develops it simple 3-D Markov chain model for queuing analysis of IEEE 802.11 MAC layer, The model is applied for performance analysis of voice communications over IEEE 802.11 single-hop ad hoc networks. By Using the model. we finish the performance optimization of IEEE MAC layer and obtain the maximum number of voice calls in IEEE 802.11 ad hoc networks as well as the statistical performance bounds. Furthermore. we design a fully distributed call admission control (CAC) algorithm which can provide strict statistical QoS guarantee for voice communications over IEEE 802.11 ad hoc networks. Extensive simulations indicate the accuracy of the analytical model and the CAC scheme.
引用
收藏
页码：50 / 58
页数：9
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