An Obstacle Avoidance Mobility Model
In real world obstacles are almost ubiquitous, especially in the emergency situations like battlefields and disaster area where the ad hoc network is usually deployed. But obstacles are not taken into account by most of the existing mobility models. This paper provides an obstacle mobility model that realistically represents the movements in obstacle environment. It suits the network deployment in emergency situations. In our model, the motion planning theory is incorporated and the node avoids obstacles by following the shortest path which is computed by the classical visibility graph algorithm. The obstacles arc used to restrict the node movement as well as the wireless transmissions. We distinguish our model with others by deeply analyses, and then a thorough simulation study is made which highlights the differences. The experimental results show that our model has a significant impact on the network topology and the performance of ad hoc network protocols, especially compared with other models.
Ad hoc network mobility model obstacle mobility model network simulation
Yu Chenchen Li Xiaohong Zhang Dafang
Software School,Hunan University Changsha,China School of Computer and Communication Hunan University Changsha,China
国际会议
厦门
英文
130-134
2010-10-29（万方平台首次上网日期，不代表论文的发表时间）