A WSN is composed of a large number of sensor nodes which consist of sensing, data processing, and communication capabilities. Fault-free and trustworthy data transfer amongst source and destination is the challenges in WSN. The energy efficiency in WSN is a key essential element for improved communication. It is believed that 70% of the energy is used up in data transmission only. The lifespan of the WSN diminishes due to additional energy consumption. Routing protocols as long as providing an optimum data transmission route as of sensor nodes to sink node to save energy of nodes in the system network. Data collection shows a significant part in energy preservation of sensor network. In wireless sensor network energy is mostly used up for three purposes – signal processing, data transmission, and hardware operation. To make the most of the network lifespan data transmission is augmented by applying energy-efficient and reliable routing protocols. The protocols have more traffic overhead and more energy consumption. This thesis proposed enhanced energy efficiency in DEEC routing protocol. The experiment results represented that it also reduced the traffic of the WSN and increases the overall system performance.