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|Title:||ACCESS AND STABILITY ISSUES IN SPECTRUM COMMONS||Authors:||LU JIANGBIN||Keywords:||Spectrum Commons, Distributed Spectrum Sharing, Game Theory, Control Theory, Stability Issues, Pareto Front||Issue Date:||18-Aug-2015||Citation:||LU JIANGBIN (2015-08-18). ACCESS AND STABILITY ISSUES IN SPECTRUM COMMONS. ScholarBank@NUS Repository.||Abstract:||This thesis studies shared access and stability issues in spectrum commons among spatially distributed transmit-receive user pairs. These users are built-in with learning and adaptation capabilities to exploit spectrum opportunities. Stability issues arise concerning network convergence to an equilibrium with efficiency and fairness. A generalized Aloha game is proposed for spatial Aloha networks and the stability condition for the unique Nash equilibrium obtained. A fully autonomous algorithm is developed to heuristically search for a fair and close-to-Pareto-front solution. A control theoretic scheme is further proposed to approach Pareto front using local information and realize the model's quick convergence and stability. Then a multi-leader Stackelberg game is proposed in multi-channel spatial Aloha for joint transmission probability tuning and channel selection. Finally, we leverage on Ideal-CSMA-Network model in overlay Device-to-Device communications, and investigate how the commons spectrum can be efficiently and fairly shared among self-interested spatial CSMA users with heterogeneous rate requirements.||URI:||http://scholarbank.nus.edu.sg/handle/10635/121964|
|Appears in Collections:||Ph.D Theses (Open)|
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