cognitive radio network With the rapidly increasing demands on wireless bandwidth, the scarcity of spectral resource becomes more serious. Motivated by spectrum scarcity and spectrum under-utilization, cognitive radio, regarded as a potential techni
GNU Radio 是一个软件无线电软件，与便宜的（相对于大多数软件无线电板卡 来说）USRP 结合在一起，就构成了一个非常灵活的开发平台，让我们可以像 开发小软件一样，轻松的开发无线设备。因为它的开放性和低成本，GNU Radio 和USRP 现在已经在中国和全世界拥有越来越多的用户。 本文从一个初学者的角度，非常详尽的介绍了GNU Radio的相关技术。
Following the discussion of interference temperature as a new metric for the quantification and management of interference, the paper addresses three fundamental cognitive tasks. 1) Radio-scene analysis. 2) Channel-state estimation and predictive mod
