| 摘要 |
PURPOSE: An end-to-end real time routing method using a queue control in a USN(Ubiquitous Sensor Network) is provided to reduce queue load by estimate calculation. CONSTITUTION: A current node receives data from an arbitrary sensor node(S610). The current node selects a parent node by a multi matrix including a property of a data path(S630). In case a queue guarantee degree of the parent node exceeds a threshold, the queue guarantee degree of candidate parent nodes is examined and the current node selects a new parent node(S640,S650). The current node transmits data to the new parent node(S670). |
