Cooperative cognitive WBAN: From game theory to population dynamism

Wireless body area network (WBAN) are small set of transceivers and transducers lying on or inside human body. For WBAN, the major issue is the interference avoidance among wireless devices that can be achieved with reduced transceiver power. Cooperative and cognitive communication is also one integral part of WBAN communication. For the cooperative communication in WBAN, a basic game theoretic formulation is discussed for power control and resource block allocation, which can be extended to evolutionary game theoretic formulation. Short range low power transmission is considered in or outside of the body area, for robust transmission of vital sensor signals. In cooperative communication scenario, relays plays vital role for robust transmission from source sensor to destination gateway, where otherwise the communication is failed. And also, energy saving is a major issue in the in-body implanted medical devices, while resource block allocation should be in such a way to avoid interference in the transmitted signals. The game theoretic formulation promises many interesting solution for WBAN applications, in term of power control, resource block allocation, and interference mitigation. A cost function for WBAN type of applications is proposed, specifically considering the above mentioned issues in short range communication. The observed Nash equilibrium shows the point of optimal used parameters for a reliable and robust WBAN.