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Preface - Pg. xi

Preface GAME THEORY AND WIRELESS In everyday life, it is common to be in situations where the outcome of a situation depends not only on what we do, but also on what other people do. This is clearly the case when participating in an auction on the Internet, voting at a presidential elec- tion, negotiating a price with a seller, trying to find a seat in a bus or in the metro, etc. All these situations are referred to as a "game" in game theory. Indeed, they do have something in common with what is usually known as a game (e.g., chess, football, monopoly, video games): several decision makers are involved, and there is interaction between them in the sense that their decisions are interdependent. This broad definition of a game explains why game theory, which is the formal study of interactions between several decision makers who can have conflicting or common interests, has become more and more important in many areas. Among these we find for example, economics, politics, biology, and computer science. Game theory has recently been applied to telecommunications. Indeed, it is now well known that game theory can be used to analyze interactions between entities such as telecoms regula- tors, operators, manufacturers, and customers; for instance, game theoreticians have been involved in designing radio spectrum auctions in the US and in Europe. More specifically, the spectrum for the third generation mobile system (3G) in Europe has