A Novel Stability Weighted Clustering Algorithm for Multi-Hop Packet Radio Virtual Cellular Network

Cooperative communications exploit the spatial diversity inherent in multiuser system by allowing cooperation among users having a wide range of channel qualities. How to search the cluster-head and its member relay nodes to cooperate is important. Since nodes are coming into or out of the clusters time to time, the network topology is perturbed and the reconfiguration of the network is unavoidable. In this paper, the authors propose a new algorithm called Stability Weighted Clustering Algorithm (SWCA) to solve this problem. They define the stability by using a new metric of mobility. In the traditional WCA, the speed of every separate node is considered.