Ad Hoc网络MRP移动模型的研究

Research of MRP Mobility Model for Ad Hoc Network

移动模型是Ad Hoc网络中各类协议和应用的基础,而移动节点的空间概率分布则是研究移动模型时关注的最重要参数。MRP模型是一种具有记忆特性的移动模型;与Ad Hoc网络其它移动模型相比,它在节点移动的稳定性和真实性方面具有显著优势。对MRP模型移动节点的空间概率分布进行了研究,给出了一维区域上的节点空间概率分布以及节点的相邻概率,并进一步讨论了节点的初始距离和转移步数对相邻概率的影响。最后对MRP模型二雏区域上的节点移动情况进行了简要分析。研究结果对基于该模型的Ad Hoc网络仿真具有实践指导意义。

Mobility model is the basis of all kinds of protocols and applications in the Ad Hoc network; and the node spatial probabilistic distribution is the most crucial parameter for the research of mobility models. The MRP mobility model is a pattern which has the characteristic of memory; Compared to other mobility models, it has significant advantages in the stability and the realistic movement of the mobility nodes. The spatialprobabilistic distribution of MRP model was studied. Firstly, the spatial probabilistic distribution and the neighbor probability of nodes were proposed. Secondly, the impact of initial distances as well as transfer steps on the neighbor probabilities was discussed. Lastly, the node movement on two-dimensional area was briefly analyzed. The research result is of practical significance for simulations of Ad Hoc network based on the MRP model.