Comparative study of Directional antenna gain for MANET Nodes and Cluster Head Gateway in Integrated Mobile Adhoc Network

As we know in Mobile Ad hoc network our Nodes are highly mobile. They move around the Network. Due to this network topology and number of neighboring nodes in each node frequently change. Movement of nodes from one to another network also affect to the communication between them. As we know if nodes are within the range of each other they will work properly. But any of one node is not in the range of other node communication will Break. As the number of nodes increases interference and complexity of MANET increases in various issues. For this reason various approaches has been produced to reduce the interference such as cluster head technique with Directional Antenna introduced. In this paper we proposed a comparative study of Directional antenna gain in order to improve interference and overhead [2] and enhance QoS. Here we have analyzed the performance of directional antenna with changing the gain. The simulation results show that directional antenna with increasing gain has improved QoS, bit error rate, throughput, SNR Ratio and received packets.