Route Discovery Methods Based on Received Power of Repeater Nodes for Wireless Sensor Networks
In this paper, two route discovery methods based on received power of repeater nodes for sensor networks are studied. The first proposed method is a simple one and the second proposed method is in multipath fading environments. In both methods, the received power information in Physical Layer of repeater nodes is added to route request message, and the message is transferred from a source node to a destination node via repeater nodes. When each repeater node received route request message, the message is decided whether accept or not by referring to received power information in physical layer. In the destination node, the most optimal route is selected from plural candidates according to the following criteria: received power level, number of hops and sequence number.