自组网Random Waypoint移动模型节点空间概率分布的研究

Random Waypoint模型是自组网经常使用的移动模型，对这种移动模型下运动节点的空间概率分布进行了研究，得到了一维与二维区域的运动节点空间概率分布的精确公式，解决了自组网仿真模型的一个遗留问题．研究结果为基于Random Waypoint移动模型的自组网理论的推导、证明、仿真与应用提供了理论依据，对基于该模型的自组网仿真具有实践指导意义．

Research on the Node Spatial Probabilistic Distribution of the Random Waypoint Mobility Model for Ad Hoc Network

The Random Waypoint model is a commonly used mobility model in the field of ad hoc network. The spatial probabilistic distribution of this mobility model is deeply studied, and the exact spatial distribution function of the generalized model with pause time and velocity randomly chosen has been obtained both in 1D and 2D region. Simulation results have also validated the distribution functions. Through the exact function it could be seen how pause time and velocity affect the node spatial distribution. The research results provide theoretical foundations for derivations and proofs of ad hoc theories based on the Random Waypoint mobility model. Also the exact distribution is of practical significance in conducting the simulations of performance evaluation based on the Random Waypoint model.