Dynamic Spectrum Access with Cognitive Radios: Future Architectures and Research Challenges
Dynamic Spectrum Access with Cognitive Radios: Future Architectures and Research Challenges
复制标题
认知无线电的动态频谱接入：未来架构和研究挑战
DOI：
10.1109/crowncom.2006.363464
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
M. Nekovee
中科院分区：
文献类型：
--
作者：
M. Nekovee
无线电技术的新趋势和发展以及当前频谱管理法规自由化的发展为利用动态频谱接入（DSA）的新范例提供了机会。DSA系统的关键特征是它们能够利用其电磁环境的知识来适应其操作和对频谱的访问。他们的主要承诺是，他们打开了频谱的高效（再）使用的可能性。基于软件无线电的认知无线电是一种智能、自适应和频率捷变的无线设备，将成为大多数DSA的基础。在本文中，我们回顾了未来DSA系统的建议架构，并描述了一些与这种新的范式相关的关键研究挑战。特别强调了自主认知无线电DSA
New trends and developments in radio technology together with current developments towards liberalization of spectrum management regulations are opening the opportunity to exploit the new paradigm of dynamic spectrum access (DSA). The key characteristic of DSA systems is their ability exploit knowledge of their electromagnetic environment to adapt their operation and access to spectrum. Their key promise is that they open the possibility of highly efficient (re)use of spectrum. The cognitive radio, built on software defined radio, is the intelligent, adaptive and frequency agile wireless device that will underlie most forms of DSA. In this paper we review proposed architectures for future DSA systems and describe some of the key research challenges associated with this new paradigm. Particular emphasize is given to autonomous cognitive radio DSA