Patent ID: 7656829
Filing Date: 2010-02-02
Classification: H04L,H04W,Y02D

Abstract:
1. In a communicating system comprising a base node, at least one adjacent node, and a start node transmitting data requested by the base node via the adjacent node or to the base node, a method for transmitting data requested to the start node comprising: measuring a power required for data transmission between the nodes forming the communication system; selecting a path depending on a minimum power consumption required for the data transmission from the base node to the start node using the measured power; and transmitting the requested data using the selected path, wherein the start node stores paths capable of transmitting the requested data, a power consumption in transmitting the data along the paths, and an information on a number of adjacent nodes relaying the data, wherein the start node is notified of an information on a remaining energy from the adjacent nodes when a number of data transmissions of the adjacent nodes is greater than a predetermined value, and wherein the requested data is transmitted using the path having the smallest number of the relaying adjacent nodes when a prompt transmission of the data is required.