| 20090216349 | METHOD AND SYSTEM FOR EXTENDING LIFETIME OF SENSOR NODES IN WIRELESS SENSOR NETWORK - A method and system are provided that extend the lifetime of sensor nodes in a wireless sensor network while ensuring network availability. An availability level is set for ensuring network connectivity corresponding to importance of network connectedness. An operation probability that a sensor node is in operation is calculated. A total sleeping time of the sensor node is calculated that minimizes the operation probability while maintaining the availability level. | 08-27-2009 |
