项目名称: 认知无线网络协同分布式动态频谱接入研究
项目编号: No.61202442
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 计算机科学学科
项目作者: 覃振权
作者单位: 大连理工大学
项目金额: 24万元
中文摘要: 本课题研究最大化地利用认知无线网络有限的频谱资源。首先,考虑到节点之间的协同与网络环境密不可分,不能够直接假设各个节点"自愿"的协同合作,所以引入非合作节点之间的博弈行为分析与合作激励机制,该激励机制是保证节点协同合作的基础。以激励机制为基石,针对认知无线网络的频谱分散的特点, 推动认知节点合作分布式的在非完美网络环境下进行频谱信息(这些数据包括感知信道与信道质量的信息)共享,为认知节点接入最佳信道提供相关参数,实现QoS保证;同时,为了保证在主用户不被干扰的前提下,最大化的挖掘机会频谱给次用户,提出自适应的合作性接入控制策略。最后,通过设计认知协同的自适应硬件平台与演示验证系统,实现上述研究内容中的异构频谱接入和联合感知优化等重要功能演示,验证研究成果的真实性和有效性。
中文关键词: 频谱侦听;无线传感器;博弈论;频谱接入;路由优化
英文摘要: This project aims at maximize the usage of limited spectrum resources of Cognitive Radio Network. First, since the cooperation of nodes are inseparable with network circumstance, and we can not suppose each node can cooperate with each other voluntarily, we introduce Game theory behavior analysis and cooperation incentive to Non-cooperation nodes, which is the basic request for the cooperation of nodes. Base on this incentive mechanism, it promotes the cognitive nodes to share spectrum information (including the information about perception of the channel and the channel quality) under imperfect network circumstance, which provides relevant parameters to help cognitive nodes to join the best channel, and then achieve QoS-guaranteed. Meanwhile, we propose an adaptive collaborative access control strategy so as to make the SU maximize the usage of spectrum. Finally, we set a testbed to verify the validity of our proposals.
英文关键词: Spectrum sensing;WSN;Game theory;Spectrum access;Route optimization