Wireless Sensor Network (WSN) and Mobile Ad-hoc Networks (MANET) are two well-known types of the wireless networks which do not have a fixed infrastructure. They are popular because of their flexibility to create a network at any place where backbone network is not present. Such networks used to suffer from major challenges like limited power supply, efficient routing of packets and security of data from unauthorized access. This paper deals with the comparative analysis of the techniques proposed by scientists and researchers to enhance longevity of such network by minimizing energy consumption by the nodes of the network and propose a new technique based on that.