Date Added: Nov 2011
A Wireless Sensor Network (WSN) is ad hoc network. Each node in WSN will participate in routing process, based on the dynamic activity of the network connectivity. The peer-to-peer nature of wireless ad hoc networks makes them suitable for a variety of applications where coordinator can't be relied on, and may improve the scalability of wireless ad hoc networks. The WSN consists of few nodes to several hundred nodes, where each node is connected to one or more sensors. The topology of the WSNs can vary from a simple star network to an advanced multi-hop wireless mesh network. The propagation technique between the hops of the network can be routing or flooding.