A wireless network consisting of a large number of small sensors with low-power transceivers can be an effective tool for gathering data in a variety of environments. The Wireless Sensor Networks (WSNs) has become major in both industrial applications as well as personal use. With the advent of Internet of Things (IoTs) there has been a re-emphasis on research, development and application of WSNs. WSN nodes are characterized by low processing power, limited lifetime and lack of mobility. So the major challenge is to design a high quality WSN irrespective of these constraints.