ABSTRACT
Cellular Sensor Networks comprise of cell phones with sensing capabilities which collaboratively serve an urban sensing application. The mobility of users, in general, leads to a non-uniform distribution of cell phone users. The Zonal Head based approach requires the Zonal Head of each zone to wait for a duration determined by the layer number, to receive data from all the nodes which sense the event. The mobility of cell phone users does not favor a structured approach which incurs a large communication and computation overhead in structure formation and maintenance. The sensing application is initiated by the mobile phone at regular sampling instants, as specified by the end-user. The design of the waiting time of event-nodes and non-event nodes primarily impacts the performance of the Distributed Velocity Dependent protocol and that of the Randomized Waiting time protocol in terms of localization error, delay, energy dissipated and the number of hops.
