Spectrum Sensing Algorithm and Implementation for Cognitive Radio Applications

Please enable javascript in your browser.

Katanbaf Nezhad, MohamadTaghi | 2013

588 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44533 (05)
University: Sharif University of Technology
Department: Electical Engineering
Advisor(s): Fotowat Ahmadi, Ali
Abstract:
The continous growth of wireless networks, the increasing numbers of users and devices, along with the demand for higher data rates have intensified the frequency band limitations as the communication medium. In search for more efficient methods to use this limited resource, the cognitive radio approach that allocates the local unused frequency bands to potential users has attracted considerable attension.
A fundamental and unseperable part of any cognitive radio system is its need to search, detect and understand the surrounding frequency spectrum. Although various methods have been already propose to overcome the challenges of this domain, simpler and more reliable methods are still in demand.In this report, we have proposed a new method based on frequency comparison with the capability of quick scanning of the spectrum. Then, we have presented a block diagram to implement this new scheme and evaluated its performance after circuit level implementation
Keywords:
Cognitive Radio ; Spectrom Sensing ; Frequency Detection ; Frequency Comparison ; CMOS Integrated Circuit ; Radio Receiver

No TOC