耦合约束下非合作无线网络协调机制研究

项目名称： 耦合约束下非合作无线网络协调机制研究

项目编号： No.61300223

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 袁巍

作者单位： 华中科技大学

项目金额： 23万元

中文摘要： 无线节点的非合作行为易降低网络性能，使用协调机制可有效解决这一问题。为探讨协调机制的设计方法，本项目针对非合作无线网络中协作频谱感知、信道分配和功率分配三类节点行为，使用非合作博弈理论进行建模，并设计分布式协调算法。与现有研究不同，本项目考虑了网络中存在的感知性能、服务质量和公平性等性能约束，后者将节点的策略空间耦合起来，大大增加了协调机制的设计难度。为解决这一问题，本项目提出了耦合约束的层次化解耦方法和基于自适应罚函数的松弛方法。为调和节点与网络的目标冲突，本项目还提出了基于非线性定价和均衡精炼理论的调和方法。最后，本项目基于分布式优化、学习和势博弈理论设计了分布式协调算法，以引导节点在最大化自身收益的前提下协同地提升网络性能。本项目的研究成果有望为协调机制的广泛应用提供一定的理论依据。

中文关键词： 协调机制；非合作博弈；信道分配；协作感知；功率控制

英文摘要： The noncooperative behavior of wireless nodes tends to degrade network performance. Coordination mechanism can be used to effectively address this problem. To investigate the design method of coordination mechanisms, this project considers cooperative spectrum sensing, channel allocation and power allocation in noncooperative wireless networks, proposes some game theoretical formulations and designs some distributed coordination algorithms. Different from existing work, this project takes the constraints on sensing performance, quality of service and fairness into account, which couples the strategy spaces of nodes and make the coordination mechanism design challenging. To address this issue, this project first proposes a hierarchical decoupling method and a relaxing method based on adaptive penalty functions for the coupling constraints. To alleviate the goal conflicts between the nodes and the network, this project also develops the coordination methods based on nonlinear pricing and equilibrium refinement. Finally, this project designs some distributed coordination algorithms to induce the nodes to maximize their own revenues and improve the network performance according to distributed optimization,learning and potential game theory. This projects may provide some theoretical support for the application of co

英文关键词： Coordination Mechanism；Noncooperative Game；Channel Allocation；Cooperative Spectrum Sensing；Power Control