Patent ID: 7414977
Filing Date: 2008-08-19
Classification: H04L,H04W,Y02D

Abstract:
1. A method for maximizing residual power along routes in a wireless network including a plurality of battery operated nodes, comprising: discovering a plurality of routes from a destination node to a source node via intermediate nodes of the network using dynamic source routing (DSR); measuring a residual power in the battery of each intermediate node; determining a power cost associated with each route according to the residual power of the intermediate nodes; selecting a particular route for transferring data from the source node to the destination node, the particular route having a least power cost; including the particular route in a routing table in a packet, in which the routing table is an ordered list of intermediate node addresses; determining a delay cost associated with each route; selecting a particular route having a least delay cost; and including the least delay cost in each transmitted packet; and transmitting each packet in the network using the DSR, and in which each packet includes the routing table.