Network design and performance analysis of Geographical Routing Protocol in Mobile Ad-Hoc Networks

In this research we have explored the consequences of increase in number of nodes on the overall performance of Geographical Routing Protocol (GRP) which is at present covering an enormous demand in the field of Mobile Ad-Hoc Networks (MANETs). To think about a wireless network without having any sorts of infrastructures, MANETs are such examples which are usually set up to serve a specified or special purpose on a temporary basis within a certain passage of time. Due to its lots of applications in the various fields of human endeavor, the immense significance of it can hardly be expressed in words in modern times. Thus, before deploying any mobile network, a proficient routing protocol has become a fundamental and vital issue. In order to observe the performance of GRP protocol, we have carried out simulation by varying the number of mobile nodes in different network scenarios using the OPNET (Optimized Network Engineer Tool) Modeler 14.0. The experimental results demonstrate that for a fixed size network area with varying network density, the GRP routing protocol shows comparatively lower delay than AODV routing protocol. But it shows inverse characteristics curve for throughput and load compare to the AODV. However, from any network always expects less delay and concurrently want large throughput. Therefore, till now no routing protocol shows optimum performance in all MANET scenarios.