Game Theoretic Approaches for Wireless Cooperative Content-Sharing

his chapter provides an overview of game theoretic solutions in a wireless application of particular interest for multimedia and social interactions in modern telecommunication systems. In particular, coalitional games, bargaining solutions and fairness and stability issues will be investigated within wireless cooperative content-sharing. According to this paradigm, users download portions of data of common interest over long-range cellular links while exchanging the downloaded portions over short-range radio links. Expected benefits, which are natural incentives to cooperation, may be in terms of content price, energy consumption, and transfer delay reduction. Significant research activity has been conducted to design strategies that simultaneously exploit the multiple radio interfaces of modern wireless devices and maximize the gain. A valid solution for the cooperative content-sharing application should be based on fairness in the utility distribution among the involved nodes which can be eased by exploiting the game theoretic approaches presented in this chapter