Insights Gained from Realistic Simulations

This chapter discusses the insights gained from simulations using realistic propagation model. Speci cally the performance in terms of coverage and achievable bit rates, and topologies formed are dealt with. It is shown that the topologies formed in mesh networks pave way for development of new protocols. Speci cally, an e cient paging protocol for urban mesh network setting is developed that makes use of tendril like structure formed by the mobile nodes inside a building. The rest of this chapter is organized as follows. The section 7.1 brie y explains the indoor and outdoor coverage in an urban mesh network. The main aim of this section is to highlight the importance of di erentiating the nodes with respect to indoor and outdoor environments. One of the important aspects of performance in wireless networks is the maximum data rate achievable. Section 7.2 deals with this aspect. Section 7.3 depicts the topology that can arise in the urban mesh networks that pave way for development of new protocols that utilize these topological formations. This section presents the details of an e cient paging protocol based on the topology of nodes inside buildings for the urban mesh network setting. The details of this protocols and simulation results have been presented in this section. There have been several other topics that make use of these realistic propagation models. Some of them include [89], [90] [56], [91], [92], [93] etc.