大规模无线传感器网络正六边形覆盖时的传输容量研究

发布时间：2018-09-07 13:30

【摘要】：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。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。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,这为研究无线传感器网络的传输性能提供了理论参考依据。
[Abstract]:Aiming at the hexagon which has the best monitoring coverage, the model of wireless sensor network is established by using random geometry theory, and the cumulative distribution function and probability density function of node distance are derived according to the distribution of nodes. The power control mechanism is used to study the network interrupt probability and network transmission capacity under CSMA protocol. The simulation results show that the outage probability of the system is low and the transmission capacity of the network is large. Spatial packet density, network coding efficiency, Backoff times and retransmission times determine the transmission capacity of the network, which provides a theoretical basis for the study of wireless sensor network transmission performance.
【作者单位】：昆明理工大学信息工程与自动化学院;
【基金】：国家自然科学基金资助项目(61163051)
【分类号】：TN929.5;TP212.9

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