Joint Power and Channel Minimization in Topology Control: A Cognitive Network Approach

Abstract— Wireless topology control is the process of structuring the connectivity between network nodes to achieve some network-wide goal. This paper presents a cognitive network approach to achieving the objectives of power and spectrum management. We cast the problem as a two phased noncooperative game and use the properties of potential game theory to ensure the existence of, and convergence to, a desirable Nash Equilibrium. Although this is a multi-objective optimization and the spectrum management problem is NP-hard, this selfish cognitive network constructs a topology that minimizes the maximum transmission power while simultaneously using, on average, less than 12% extra spectrum, as compared to the ideal solution.

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Ryan W. Thomas, Ramakant S. Komali, Allen B. MacKenzie, Luiz A. DaSilva
• Keywords: Cognitive Network, Cognitive Network Approach, Communications, ICC 2007, Spectrum Management