Guest Editorial:Special Issue on Embedded Signal Processing Circuits and Systems for Cognitive Radio-Based Wireless Communication Devices

摘要

The demand for ubiquitous wireless services is ever-growing, and with the proliferation of mobile multimedia communication devices and wireless standards, it will continue to grow. Future communication devices have to support a plurality of applications such as text, speech, audio, video, and graphics. Apart from that, they also should be able to connect with many other devices operating on different standards. It has been observed that most of the licensed spectrum is largely underutilized, and similar views about the underutilization of the allocated spectrum have been reported by the Spectrum Policy Task Force appointed by the Federal Communications Commission (FCC).