Abstract: Wireless Multimedia sensor transmitted the data packet in real time heterogeneous networks are named as task driven data. The task driven is classified as event driven, time driven, query driven and normal data. To support QoS, the data packets are routed from the Cluster Head (CH) to the sink based on contextual priority of data. The collected packets from the Cluster Heads (CH) are routed and they are stored in an octree structure in the network gateway by the proposed algorithm, Contextual Routing with Octree Profiled data Gathering (CROPG). It has two phases, in Phase I, a Priority-in-Priority Routing (PPR) is developed to balance the load and delay by checking a priority between the cluster Heads. It is by analysis the packet type and packets are routed based on the traffic. In Phase II the packets are stored in octree structure to organize the contextual data. In this study, three novel features such as priority, resilient routing and octree data storage are looked upon as the central elements.
G. Vithya and B. Vinayagasundaram, 2016. QoS in Wireless Multimedia Sensor Networks by Contextual Routing with Octree Data Gathering. Asian Journal of Information Technology, 15: 122-135.