Cognitive Radio Spectrum Sharing Techniques : A Review
نویسندگان
چکیده
Cognitive Radios are promising solutions to the problem of overcrowed spectrum. Using channel selection techniques the access can be opportunistic by using frequency hopping, frequency tracking and frequency coding. Spectrum sharing cognitive radio networks allows cognitive radio users to share the spectrum bands of the licensed users. This paper explores various cognitive radio spectrum sharing techniques.
منابع مشابه
The Optimal MMSE Transceiver Design for IoT-oriented Cognitive Radio Systems
This paper studies interference alignment scheme and minimum mean square error (MMSE) improvement in Internet of Things (IoT)-oriented cognitive systems, where IoT devices share the licensed spectrum by cognitive radio in spectrum underlay. Target to manage the inter-tier interference caused by cognitive spectrum sharing as well as ensure an MMSE at receivers, the interference alignment algorit...
متن کاملSpectrum Assignment in Cognitive Radio Networks Using Fuzzy Logic Empowered Ants
The prevalent communications networks suffer from lack of spectrum and spectrum inefficiency. This has motivated researchers to develop cognitive radio (CR) as a smart and dynamic radio access promised solution. A major challenge to this new technology is how to make fair assignment of available spectrum to unlicensed users, particularly for smart grids communication. This paper introduces an i...
متن کاملSpectrum Sharing Security and Attacks in CRNs: a Review
Cognitive Radio plays a major part in communication technology by resolving the shortage of the spectrum through usage of dynamic spectrum access and artificial intelligence characteristics. The element of spectrum sharing in cognitive radio is a fundamental approach in utilising free channels. Cooperatively communicating cognitive radio devices use the common control channel of the cognitive r...
متن کاملCooperative Spectrum Sensing and Spectrum Sharing in Cognitive Radio: A Review
Cognitive radio is a transforming and revolutionary technology that represents a paradigm shift in the design of wireless systems, as it allows agile and efficient utilization of the radio spectrum by offering the ability of radio sensing, self-adaptation, and dynamic spectrum sharing. In this paper the use of cooperative spectrum sensing in cognitive radio systems to enhance the reliability of...
متن کاملCognitive Radio: A New Standard in Wireless Communication Technology
-The future of Wireless Communication Technology is going to be basically based on Cognitive Radio (CR) or Intelligent Radio (IR). At present the Spectrum allocation governed by the government agencies or the service providers who are in need of more spectrums, to manage the increasing frequency demands from the end users as the technological improvement increases exponentially. Efficient utili...
متن کامل