Cluster-to-Cluster Overlay Network for Video Systems over Wireless Ad Hoc Networks

In current years, application layer overlay networks have become a popular solution for video streaming delivering. Ad Hoc networks are composed of mobile nodes without any fundamental structure, these mobile nodes dynamically construct temporary network to communicate with each other. So, the irrelevant fundamental structure feature of overlay network is suitable for Ad Hoc networks. However, Ad Hoc networks exists several fundamental problems, including large dynamic of nodes and links, the unstable bandwidth between nodes, high transferring delay and limited energy. In this paper, we propose a Cluster-to-Cluster overlay network (C2C), which clusters the nodes into some clusters with a weight degree-based clustering algorithm, considering the forwarding and transmitting ability, energy of the node and the distance between nodes, the clusters are constructed into multi-link mesh-based structure, and in the cluster, the nodes are organized with probe forwarding mesh-based algorithm. The simulation results demonstrate the C2C overlay network can achieve less delay and transmitting cost than tree-based, mesh-based and hybrid based overlay networks in high unstable Ad Hoc networks.