IEEE 802.15.4协议的性能分析与仿真  

Performance Analysis and Simulation of IEEE 802.15.4 Protocol

作　　者：张舸[1] 刘利强[1] 周细义[1] 严珍艳[1] 

机构地区：[1]湖南理工学院信息与通信工程学院

出　　处：《电子技术（上海）》2011年第5期76-78,共3页Electronic Technology

基　　金：湖南省科技厅科技计划项目(2010GK3039);湖南理工学院科研计划项目(2008Y55)

摘　　要：IEEE 802.15.4是一个自组织的无线网络标准,其中制定了PHY层和MAC层规范,主要应用场合为低成本、低功耗、低复杂度的无线个域网。许多参数在IEEE 802.15.4标准中仅给出取值范围而并未给出确定的值,虽然这些值对系统性能有着较为显著的影响。个域网中的设备大量采用电池供电,因此实现更低的能量消耗是该网络标准的主要目标。本文通过分析IEEE 802.15.4协议特点,运用NS2网络仿真软件分析IEEE 802.15.4网络结构下数据传输过程中的端到端延时和丢包率情况,为IEEE 802.15.4协议的实际应用提供有意义的参考。IEEE 802.15.4 is a standard for self-organizing wireless network,it specifies the physical layer and medium access control layer mainly used in the low rate wireless personal networks characterized by low cost,low complexity,low power consumption.In IEEE 802.15.4 many parameters are given just in value of range,instead exact values,although these values have significant impact on the system performance.In the personal networks,devices are mostly powered by battery,consequently to reduce total energy consumption is a primary task in this standard.By analyzing the characteristics of IEEE 802.15.4 protocol,this paper uses NS2 network simulation software to analyze the time delay and packet loss rate from end to end during data transmission under IEEE 802.15.4 network architecture,so as to provide some significant reference for the practical application of IEEE 802.15.4 protocol.

关 键 词：仿真 无线传感网 IEEE 802.15.4 NS2 

分 类 号：TN925.93[电子电信—通信与信息系统]