Cognitive radio: Making software radios more personal
Cognitive radio: Making software radios more personal
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DOI：
10.1109/98.788210
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发表时间：
1999-08-01
期刊：
影响因子：
--
通讯作者：
Maguire, GQ
中科院分区：
文献类型：
--
作者：
Mitola, J;Maguire, GQ
软件无线电正在成为多频段多模式个人通信系统的平台。无线电礼仪是一组射频频段、空中接口、协议以及限制无线电频谱使用的空间和时间模式。认知无线电用基于无线电领域模型的关于此类礼仪的推理来扩展软件无线电。认知无线电通过无线电知识表示语言增强了个人服务的灵活性。该语言以支持对用户需求进行自动推理的方式表示无线电礼仪、设备、软件模块、传播、网络、用户需求和应用场景的知识。这使得软件无线电能够在对等体之间就无线电频谱的使用进行富有表现力的协商，跨越空间、时间和用户环境的流畅。有了RKRL，认知无线电代理可以主动操作协议栈来适应已知的礼仪，以更好地满足用户的需求。这将无线电节点从预定义协议的盲人执行者转变为无线域感知的智能代理，即使用户不知道如何获得这些服务，这些智能代理也会搜索出提供用户想要的服务的方法。软件无线电[1]为认知无线电的实现提供了理想的平台。
Software radios are emerging as platforms for multiband multimode personal communications systems. Radio etiquette is the set of RF bands, air interfaces, protocols, and spatial and temporal patterns that moderate the use of the radio spectrum. Cognitive radio extends the software radio with radio-domain model-based reasoning about such etiquettes. Cognitive radio enhances the flexibility of personal services through a Radio Knowledge Representation Language. This language represents knowledge of radio etiquette, devices, software modules, propagation, networks, user needs, and application scenarios in a way that supports automated reasoning about the needs of the user. This empowers software radios to conduct expressive negotiations among peers about the use of radio spectrum across fluents of space, time, and user context. With RKRL, cognitive radio agents may actively manipulate the protocol stack to adapt known etiquettes to better satisfy the user's needs. This transforms radio nodes from blind executors of predefined protocols to radio-domain-aware intelligent agents that search out ways to deliver the services the user wants even if that user does not know how to obtain them. Software radio [1] provides an ideal platform for the realization of cognitive radio.