SCFP: sectored circle forwarding protocol
Toan Hoang, Brage Ellingsæter, Torleiv Maseng · 2011
Collaboration between radio devices before claiming a frequency usage is important to maximize spectral efficiency. Not only will the collaboration help the devices to get their required resources, it will also result in better performance for the whole network. In this paper, we propose a system to enable collaboration between cognitive radio devices in a Dynamic Spectrum Access (DSA) network. We present an efficient algorithm to forward a message to all devices within a given area, the Sectored Circle Forwarding Protocol (SCFP). SCFP makes it possible to collaborate between radio devices that may interfere with each other by efficiently identifying these devices. In an area containing N devices, SCFP only needs to send N-1 messages to identify all the devices in the area. A new overlay network implementation, Geographic Optimized Overlay Network (GOON), is also introduced in this paper to support SCFP and make the system as efficient as possible.