Mobility Model for WBANs

Mobility models play a vital role on the accuracy of simulations in Wireless Body Area Networks (WBANs). In this paper, we propose a mobility model for the movement of nodes placed on the human body. During routine activities, body exhibits different postures like standing, sitting, laying, etc. We form a mathematical model for the movement of nodes according to the posture pattern. Postures change from one state to another depending upon probabilities. During movement, the distance between nodes and sink is changed which affects the energy consumption of nodes. We implement the proposed mobility model in multi-hop and forwarder based routing techniques and study their performance parameters.