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基于CSMA/CA的无线多跳网中干扰特征仿真 被引量：2

Interference characteristic simulation in CSMA /CA-based wireless multi-hop networks
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摘要 近年来,无线多跳网络快速发展,冲突干扰作为影响无线多跳网络性能的关键因素,越来越受到研究者的重视。针对网络中干扰节点的不同分布情况,采用随机点过程的模拟方式,重点研究了在载波侦听多路访问/冲突避免(CSMA/CA)协议下,节点基于不同随机点过程分布的累积干扰特征;并搭建基于NS2的干扰仿真平台,模拟实际网络干扰分布特征。最后,将两者进行对比,发现基于随机点过程的干扰分布特征与实际网络干扰分布特征存在一定差异,并指出了存在差异的原因。 Conflict interference is one of the key factors affecting the performance of wireless multi-hop network. In view of the different distribution of interference nodes in the network, adopting stochastic point process simulation, the cumulative interference characteristics of nodes were studied based on different stochastic point processes in Carrier Sense Multiple Access with Collision Avoidance （CSMA/CA） protocol. Then the interference simulation platform based on NS2 was established to simulate the realistic interference distribution. Finally, the comparison between them shows that there is a certain difference between the simulation and the reality, and the reasons were also pointed out.
作者 谭国平 唐璐瑶 花再军 刘修泉
机构地区 河海大学计算机与信息学院 广州番禺职业技术学院
出处 《计算机应用》 CSCD 北大核心 2013年第12期3398-3401,共4页 journal of Computer Applications
基金 国家自然科学基金资助项目(61001068) 广州番禺区科技计划项目(2011-Z-01-07)
关键词 冲突干扰 载波侦听多路访问 冲突避免 随机点过程 干扰分布 干扰建模 conflict interterence Carrier Sense Muhiple Access with Collision Avoidance （CSMA/CA） stochastic pointprocess interference distribution interference modeling
分类号 TP393.0 [自动化与计算机技术—计算机应用技术] TP391.97 [自动化与计算机技术—计算机应用技术]
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参考文献11

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同被引文献17

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2013年 第12期

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