Cluster-Based Multi-Path Data Dissemination Scheme for Large Scale Wireless Sensor Networks

Acquiring critical events for mobile or static sinks poses great challenges for applications of wireless sensor network in emergency response and other surveillance scenarios. In this paper, a clustering-based multi-path data dissemination scheme (CMPDD) is proposed. The cluster head and several dissemination nodes in each cluster collaboratively process data and deliver data to multiple mobile/static sinks with good energy efficiency and lower delay. Adapting to varying number of source-sink pairs, one or multiple paths are set up for event dissemination between sinks and sources. Reliability is enhanced by backup mechanism among dissemination nodes. Simulation results show that this scheme outperforms TTDD in energy consumption, transmission delay and resilience to node failures.