| 摘要: |
| 分析了认知无线电网络的集中式、AdHoc式和Mesh式体系架构及其节点与链路特性。在
认知无线电终端方面,分析了系统组成,并阐述了其认知引擎中环境感知模块、方案制定与优化模
块、知识库、知识进化器和接口模块的功能定义以及认知循环过程。最后,论述了认知无线电的频谱
感知、频谱分配以及功率控制关键技术。 |
| 关键词: 认知无线电 认知引擎 频谱感知 频谱分配 功率控制 |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目: |
|
| AnalysisofCognitiveRadioArchitecture |
| ZHOU Liang-chen |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China) |
| Abstract: |
| Three kinds of cognitive radio(CR) networks with infrastructure, Ad Hoc and Mesh
architecture are firstly given,followed by the description of the characteristi
c of their nodes and links. Secondly the composition of CR terminal is analysed
with emphasis on cognitive engine (CE). The CE includes sever
a
l modules of environment sensor, solution and optimization maker, knowledge base
, knowledge evolver and interface. The functions and definitions of the modules
and the cognitive cycle are subsequently discussed. Finally, the key techniques
of spectrum sensing, spectrum allocation and power control are presented. |
| Key words: cognitiveradio(CR) cognitiveengine(CE) spectrumsensing spectrumallocation powercontrol |
《电讯技术》编辑部 