| 大规模无线传感器网络正六边形覆盖时的传输容量研究 |
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| 引用本文： | 诸浩富,毛剑琳,王昌征,付丽霞,郭宁.大规模无线传感器网络正六边形覆盖时的传输容量研究[J].计算机应用研究,2017,34(5). |
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| 作者姓名： | 诸浩富 毛剑琳 王昌征 付丽霞 郭宁 |
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| 作者单位： | 昆明理工大学 信息工程与自动化学院,昆明理工大学 信息工程与自动化学院,昆明理工大学 信息工程与自动化学院,昆明理工大学 信息工程与自动化学院,昆明理工大学 信息工程与自动化学院 |
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| 基金项目： | 异构无线传感执行器不对称竞争接入控制算法(61163051)； |
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| 摘 要： | 传输容量是无线传感器网络的重要性能指标之一。该文针对监测覆盖效果最佳的正六边形,利用随机几何理论建立无线传感器网络模型,并根据节点分布情况,推导计算节点距离的累计分布函数和概率密度函数。同时,采用功率控制机制,研究CSMA协议下的网络中断概率和网络传输容量。仿真结果表明：正六边形覆盖监测区域内的系统中断概率较低,网络传输容量较大。而且,空间分组密度、网络编码效率、退避次数和重传次数决定了网络传输容量的大小。这为日后研究无线传感器网络的传输性能提供了理论参考依据。
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| 关 键 词： | 正六边形 无线传感器网络 传输容量 随机几何理论 中断概率 |
| 收稿时间： | 2016/2/29 0:00:00 |
| 修稿时间： | 2017/3/6 0:00:00 |
Research on Transmission Capacity of Large-Scale Wireless Sensor Networks in Regular Hexagon |
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| ZHU Haofu,MAO Jianlin,WANG Changzheng,FU Lixia and GUO Ning.Research on Transmission Capacity of Large-Scale Wireless Sensor Networks in Regular Hexagon[J].Application Research of Computers,2017,34(5). |
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| Authors: | ZHU Haofu MAO Jianlin WANG Changzheng FU Lixia and GUO Ning |
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| Affiliation: | Kunming University of Science and Technology,Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Faculty of Information Engineering and Automation |
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| Abstract: | Transmission capacity is one of the important performance indicators in wireless sensor networks. In this paper, stochastic geometry theory is applied to establish the network model under regular hexagon, and according to the nodes distribution, this paper calculates the cumulative distribution function and the probability density function. Meanwhile, this paper studies the system outage probability and transmission capacity in CSMA protocol based on power control. The simulation results show that the system outage probability is lower and transmission capacity is larger in regular hexagon. Furthermore, the pace packet density, coding efficiency, backoff times and retransmission times determine transmission capacity. These provide theoretical bases for future research of transmission performance in wireless sensor network. |
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| Keywords: | Regular Hexagon Wireless Sensor Networks Transmission Capacity Stochastic Geometry Theory Outage Probability |
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