摘要
为在使用定向天线的无线Mesh网络部署研究中考虑用户的QoS需求,提出了一种可用于用户QoS需求分析的吞吐量计算方法。对802.11协议下的分布式协调功能传输机制进行分析,得到一个计算无线Mesh网络系统吞吐量的方程式,再考虑引入定向天线后带来的改变,精确推导出基于定向天线的无线Mesh网络中Mesh终端用户吞吐量计算方程式。通过实验数值分析,表明了该方法可以用于网络部署中的用户QoS分析,可为使用定向天线的无线Mesh网络部署研究中保证用户的QoS需求提供了依据。
To consider the user＇s QoS requirements in the wireless mesh network deployment using directional antennas, a way that can be used for analyzing the mesh user＇s QoS need is proposed. Firstly, by analyzing the ＇data transmission mechanism of 802.11 protocol, a formula to calculate the system throughput of wireless mesh networks is proposed. Then, considering the changes from the introduction of directional antennas in wireless mesh networks, a formula can be used for computing user＇s QoS requirement is derived. By the analysis of experimental results proves that this method is applied to deploy a network for user＇s QoS analysis. It point out a direction to how to reduce the degree of network＇s nodes at the same time meet the user＇s requirements.
出处
《计算机工程与设计》
CSCD
北大核心
2014年第1期93-96,共4页
Computer Engineering and Design
基金
广西自然科学基金项目(2012jjAAG0044)
广西教育厅基金项目(TLZ00714)
