Patent ID: 8223784
Filing Date: 2012-07-17
Classification: H04W,Y02D

Abstract:
1. A network having a hierarchical structure, the network comprising: a plurality of clusters, each cluster comprising: wherein each of the nodes is connected to other clusters via the cluster head, wherein each of the nodes receives messages from nodes that are subject to a next hop, each of the messages including status information of nodes subject to the next hop, the status information of the nodes indicating a degree of a buffer usage by the nodes, and wherein each of the nodes determines the next hop using the status information of the nodes indicating a degree of a buffer usage by the nodes, wherein the messages received by each of the nodes from nodes that are subject to a next hop are received in a MAC layer when a routing path is set, and wherein, when the next hop is determined, a routing entry table including information about the determined hop is flooded to the other nodes in the MAC layer.