Energy Efficient and Scalable Routing Protocols for WSN: A Survey

Abstract- Routing is a process of selecting a path between two or more communicating devices. Routing in terms of Wireless Sensor Networks (WSN) is to make communication possible between autonomous sensor nodes. Many routing protocols are designed and implemented for WSNs. The design of these routing protocols is influenced by many factors like performance, accuracy, lifetime, Quality of Services, Security, synchronization and scalability. In this paper, we represent a survey of different cluster based routing techniques which focus on Energy Efficiency and Scalability. Energy efficiency is important factor of many WSN protocols as motes are coming with limited battery. Power consumption depends on routing techniques, number of nodes and area of network. The scalability factor is also considered as one of these important factors. Scalability is defined as ability to handle growing number of users in a network.The sensor networks scalability is the ability to support network expansion for including more nodes