Contention-based QoS MAC Mechanisms for VBR VoIP in IEEE 802.11e Wireless LANs

被引：0
|
作者：
Li, Frank Haizhon [1 ]
Xiao, Yang [2 ]
机构：
[1] Univ South Carolina Upstate, Div Math & Comp Sci, Spartanburg, SC 29301 USA
[2] Univ Memphis, Dept Comp Sci, Memphis, TN 38152 USA
来源：
2006 3RD IEEE CONSUMER COMMUNICATIONS AND NETWORKING CONFERENCE, VOLS 1-3 | 2006年
关键词：
VaIP; QoS; IEEE 802.11e WLAN; Admission Control;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, We propose two contention-based medium access control (MAC) mechanisms to provide quality of service (QoS) for variable bit rate (VBR) voice over IP (VoIP) in IEEE 802.11e contention-based channel access (EDCA) wireless LANs (WLANs): Access time-based admission control (ATAC) and access point dynamic access (AP-DA). Simulation results indicate that the proposed mechanisms offer a satisfactory solution for QoS of VBR VoIP; the ATAC algorithm outperforms the EDCA and significantly improves QOS of VBR VoIP sessions in terms of average delay and delay distribution; and the AP-DA algorithm effectively balances downlink and uplink VoIP sessions.
引用
收藏
页码：40 / +
页数：2
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