Patent ID: 9148849
Filing Date: 2015-09-29
Classification: H04W,Y02D

Abstract:
1. A computer-implemented coverage, connectivity and communication (C3) protocol method for a wireless sensor network (WSN), comprising the steps of: establishing a plurality of nodes, including a sink node; measuring received signal strength indication (RSSI) of the nodes relative to the sink node and relative to each other; designating ring membership status to the nodes based on predetermined RSSI thresholds determined from the measuring step, the ring membership status designating step assigning each node to one of a plurality of rings extending from a first node ring to an Nth node ring based on the relative RSSI measurements; determining required distances between said rings using said predetermined RSSI thresholds; determining an optimal width u of said rings by using a communication range R setting said communication range R forming a ring inside of said cluster based on said communication range R increasing the probability of a node to be selected as a clusterhead in odd-number rings during a given round of network formation and alternatively increasing the probability of said node to be selected as a clusterhead in even-numbered rings during a subsequent round of network formation, wherein neighboring nodes in a lower numbered ring join a cluster associated with said clusterhead; and establishing wireless communication links between neighboring nodes and gateways of the WSN.