ABSTRACT
Due to their autonomous nature, wireless sensor networks (WSNs) are some of the most popular and highly utilized networks among the entire categories of wireless communication. The primary goal of a WSN application is to ensure that data is shared between the sensor nodes. Apart from the normal communication, WSN applications ensures the establishment of a network as well as sharing of information even when the establishment of a traditional network is not possible. In WSNs, the major issue is limited power resources. The quantity of energy used by a WSN is directly proportional to its lifespan. As a result, the energy used in a WSN is a valuable resource that must be carefully managed. This chapter provides an overview of the entire process of power consumption happening in a wireless sensor network, starting from the structure of a node to different levels of the network where the actual power consumption occurs. Following that, this chapter also highlights a brief list of possible ways to reduce power utilization at the different categories so that the lifetime of the network can be increased.
