Evolutionary Game Theory-Based Collaborative Sensing Model in Emergency CRAHNs
Game theory has been a tool of choice for modeling dynamic interactions between autonomous systems. Cognitive Radio Ad Hoc Networks (CRAHNs) constituted of autonomous wireless nodes are a natural fit for game theory-based modeling. The game theory-based model is particularly suitable for "Collaborative spectrum sensing" where each cognitive radio senses the spectrum and shares the results with other nodes such that the targeted sensing accuracy is achieved. Spectrum sensing in CRAHNs, especially when used in emergency scenarios such as disaster management and military applications, needs to be not only accurate and resource efficient, but also adaptive to the changing number of users as well as signal-to-noise ratios. In addition, spectrum sensing mechanism must also be proactive, fair, and tolerant to security attacks.