Mobile Ad hoc networks are the collection of wireless nodes that can exchange information dynamically among them without pre existing fixed infrastructure. Due to extremely dynamic in nature, evaluation of routing protocols is an important issue. In this paper, we focus on analysis for impact of proactive protocols by growing the density of nodes in network and keeping source node fixed and movable destination node and lastly, keeping the destination node fixed and move source node. All three cases, behavior of the routing protocol have been analyzed to progress and choose efficient and proficient routing protocol for network setup. The performance matrix contains delivery fraction, packet loss and end-to-end delay. We emphasis and compare the routing protocols from different factors and find best one for smooth functioning our networks.

Wireless sensor network is extensively used technology now a day in real time application. It consists of a number of autonomous sensor nodes which are organized in various areas of interest to accumulate data and jointly convey that data back to a base station. But the sensor node has limited battery energy and it is also found that the WSN more vulnerable to severe kinds of security threats such as denial of service (DOS), Sybil, hello flood attack etc. In this, we proposed group communication using election algorithm to make the network most energy efficient and also make the network secure. The simulation of the proposed methodology is done between different network parameter such as PDR, end-to-end delay, throughput and energy consumption using the network simulator NS-2.34.

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