SPAR: Shortest Path Adaptive Routing for Wireless Sensor and Actor Networks

Wireless sensor and actor networks (WSANs) consist of three components which are sensor nodes, actor nodes and central controller (sink). The act of sensors is gathering data from the physical environment and sending them to the actor or the sink. The actors react according to received data from the sensor or the sink. After detection of an event, this data must be sent to the sink or actor immediately. To send this data to the sink, there exist several paths in which finding a suitable path can improve the performance of the network. In this paper a protocol on routing has been proposed, in which protocol sensors cache the identity of neighboring nodes, and by first sending a group of the identity of intermediate nodes will be named as the selected path till arriving the first actor, during which the next sending will only be carried out through that path.