Effect of exponential and normal distributed speed and position for mobiles in ad hoc networks

Mobile Ad hoc Networks (MANET) have been the focus of many recent research and development efforts because of the necessity of decentralized network configuration. Ad hoc networks are characterized by multi hop wireless connectivity and frequently changing network topology, which supports both mobile users and services. To facilitate communication in this dynamically changing network topology several routing protocols such as Dynamic Source Routing protocol, Ad hoc On-demand Distance Vector protocol, and Destination Sequenced Distance Vector protocol, etc are proposed in the literature. Most of the research works are carried out by assuming random mobility models for speed and direction of the mobile. Such a model can generate an unrealistic behavior such as sudden stopping and turning. Later, researchers used uniform mobility models for both speed and position of the node. In this work, we have studied various mobility models, which are more realistic than the earlier assumptions. We have also investigated the effect of exponential and normal distribution models for mobiles speed and position. Based on our study, the throughput, end-to-end delay and the control overhead performance, it is found that the exponential model outperforms the uniform and normal models for a wide range of speeds.