Demo: Self-adaptive Network Architecture Reconfiguration in CRNs

This paper describes our demonstration of a self-adaptive network architecture reconfiguration technology in Cognitive Radio Networks (CRNs) under complex and vicious environment. The technology enables CRN to switch between three kinds of typical network architectures, i.e., centralized, ad hoc and cooperative relay in an autonomous and flexible way. This self-adaptive switch can solve the problem of physical breakdown and invalid communication link in vicious network environment, and hence enhance the network robustness. We implement the technology on a CRN testbed consisting of GNU Radio and USRPs and verify its performance including switching time and throughput.