Tree based multipath data diffusion for Multimedia Wireless Sensor Networks

Abstract

Wireless Multimedia Sensor Networks (WMSNs) have come forth as a significant technology with striking performance in processing of multimedia signals and increase an encompassing range of real time applications. However, WMSNs have strict restraints with respect to available resources in terms of bandwidth, energy and processing capacities of sensor nodes. So, in place of a stand alone video sensor node, it is suitable to use multiple video sensors which operate the acquired information locally and intercommunicate with each other to draw out the crucial data and send it to the sink. Thus, in-network collaborative processing renders solutions to multimedia applications with decreased processing power, data delivery response time and energy consumption. In this paper, we present a novel multipath construction scheme which builds disjoint, minimum hop and energy efficient multiple paths between base station and video sensor nodes and between different video sensor nodes for in-network collaborative processing. On demand path construction priorities can be assigned according to the situation. Performance evaluation of our suggested path construction scheme demonstrates its effectivity for collaborative video sensor networks.