认知无线网络中的多域认知

认知无线电与认知无线网络的明显区别之一是认知环境发生了变化,从无线环境拓展到网络环境与用户环境。从认知无线电到认知无线网络的演进过程中,为了深入研究环境认知的基础理论,在分析认知网络的基本概念和工作机理的基础上,提出了多域认知的思想,构建了一个包括多域本地认知层、多域协同认知层和多域主动认知层的3层认知理论体系框架,提出了基于认知引擎的多域认知实现框架,探讨了多域认知的研究内容,为认知无线网络的应用奠定了基础。

Multi-domain cognition in cognitive radio networks

Environment cog nit ion is the most dist inct dif ference between cog nit ive radio and cognit iv e r adio netw orks, and enviro nment cog nit ion ex tends f rom wireless enviro nment to netw ork env ir onment and user enviro nment . During the evolut io n f rom cog nit ive radio to cognit iv e r adio netw orks, in or der to inv estig ate deeply on basic theo ries of environment co gnit ion, the cognit iv e ability of w ireless netw orks and the basic co ncept of cog nit ive netw ork were studied. T he co ncept of mul ti-domain co gnit ion and mechanism of co gnit ive netw orks w ere propo sed. Under the f ramew ork of cog nit ive theory , mul ti-domain co gnit ion w as divided into thr ee lay er s, w hich w ere lo cal mult i-domain cognit ion, cooper at ive mult i-domain cognit ion and init iative mult i-domain co gnition respect ively. T he f ramew ork of mul ti-domain cog nit ion based on cog nitiv e eng ine was described. Finally , invest ig at ions and basic theories on mult i-domain cog nit ion were presented. T ho se research result s lay a fo undat ion for the applicat ion o f cog nit ive radio netw or ks.