Now showing items 1-5 of 5
Predictive Channel Access in Cognitive Radio Networks Based on Variable order Markov models
The concept of Cognitive radio enables the unlicensed users to share the spectrum with licensed users, on the condition that the licensed users have preemptive priority. The use of the channel by unlicensed users should ...
Modeling spectrum handoff in overlay cognitive radio networks - a queueing theoretic approach
In the overlay Cognitive Radio (CR) networks, the low priority Secondary Users (SUs) must constantly monitor the occupied spectrum to detect the possible appearances of the high priority Primary Users (PUs) within the same ...
Adaptive Joint Source-Channel Coding of Real-Time Multimedia for Cognitive Radio
Radio spectrum has become a scarce and priced resource due to the rapid growth of wireless networks. However, recent surveys conducted by the FCC indicate that a large part of the allotted frequency spectrum lies unused. ...
Spectrum Sensing in Cognitive Radio Networks
(IEEE Transactions on Vehicular TechnologyIEEE Transactions on Vehicular TechnologyEURASIP Journal on Wireless Communications and Networking, 2011-03)
Given the ever-growing demand for radio spectrum, cognitive radio has recently emerged as an attractive wireless communication technology. This dissertation is concerned with developing spectrum sensing algorithms in ...
Opportunistic real-time video transmission over fading cognitive radio channels using hybrid digital analog coding
Cognitive radio is a wireless communication paradigm that has achieved greater research attention due to the increasing demand for high-quality multimedia services and scarcity of the available spectrum to support these ...