移动agent计算模式的无线传感器网络性能

摘要

无线传感器网络中使用的计算模式分为客户/服务器(client/server,C/S)计算模式和移动agent(mobileagent,MA)计算模式.MA相比C/S模式具有的优点更适合无线传感器网络.通过理论分析和数学建模形式化MA数据处理与两种计算模式的性能指标.通过仿真比较了不同参数对这两种计算模式性能的影响.结果表明,MA计算模式的网络性能受MA路由、MA处理代码大小、感知数据大小等多方面因素影响,在实际应用中需综合考虑以达到时延和能耗的均衡,而且MA模式具有良好的实时性,在一定条件下,其性能好于C/S模式.%The computing paradigms used in wireless sensor networks were mainly divided into two categories: the C/S-based paradigm and the MA-based paradigm.Comparing to the C/S paradigm, many advantages of the MA paradigm made it more suitable for wireless sensor networks.Through theoretical analysis and mathematical modeling, the paper formalized mobile agent data processing and performance metrics of the paradigms.It designed several simulations to compare the effect of different parameters on the performance of the paradigms.Simulation results show that the performance of the MA paradigm is affected by many factors such as mobile agent size, size of sensing data, mobile agent routing, so these factors need to be taken into account in order to achieve the tradeoff of delay and energy consumption in practice.Furthermore the MA paradigm has a good real time, and exhibits better performance than the C/S paradigm in certain conditions.