认知无线电网络架构与协议体系Architectures and Protocols of Cognitive Radio Networks2007-06-28作者:朱江,李少谦摘要:认知无线电网络具有动态、灵活、智能地使用频谱资源,提高频谱利用率的特点,其网络结构和协议体系的设计是实现上述网络功能的关键。现有基于认知无线电技术的网络架构主要有美国的CORVUS系统,基于IEEE 802.22的无线局域网(WRAN)和支持多信道多接口的无线Mesh网络;协议体系有CORVUS协议体系,军用的XG系统协议及WRAN协议等。关键字:认知无线电;网络架构;网络协议英文摘要:Cognitive radio networks have the abilities of utilizing spectrum dynamically, agilely and intelligently, and improving the efficiency of spectrum usage. Consequently, both the protocol