Channel Access

Ahmed.masri's picture

Common Control Channel Allocation in Cognitive Radio Networks through UWB Communication

Journal Title, Volume, Page: 
Journal name Journal of Communications and Networks Volume 14 Issue 6 Pages 710-718
Year of Publication: 
2012
Authors: 
Claudio Ettore Casetti
Alberto Giuseppe Perotti
Ahmed Masri
Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Torino, Italy
Current Affiliation: 
Department of Telecommunication Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Carla Fabiana Chiasserini
Preferred Abstract (Original): 

The implementation of a common control channel is one of the most challenging issues in cognitive radio networks, since a fully reliable control channel cannot be created without reserving bandwidth specifically for this purpose. In this paper, we investigate a promising solution that exploits the ultra wide band (UWB) technology to let cognitive radio nodes discover each other and exchange control information for establishing a communication link. The contribution of this paper is threefold: (i) We define the communication protocol needed to let cognitive radio nodes discover each other and exchange control information for link set up, (ii) we overcome the gap in coverage, which typically exists between UWB and long-medium range technologies, by using multi-hop communication, (iii) we evaluate the performance of our approach by adopting an accurate channel model and show its benefits with respect to an in-band signaling solution.

Ahmed.masri's picture

Control Information Exchange through UWB in Cognitive Radio Networks

Journal Title, Volume, Page: 
Communications and Networks, Journal of (Volume:14, Issue: 6), Page(s): 710 - 718
Year of Publication: 
2012
Authors: 
Ahmed Masri
Dipartimento di Elettronica e Telecomunicazioni, Politecnico di Torino, Torino, Italy
Current Affiliation: 
Department of Electrical Engineering, Faculty of Engineering, An-Najah National University, Nablus, P.O. Box 7, Palestine
Alberto Perotti
Claudio Casetti
Carla - Fabiana Chiasserini
Preferred Abstract (Original): 
The implementation of a common control channel is one of the most challenging issues in cognitive radio networks, since a fully reliable control channel cannot be created without reserving bandwidth specifically for this purpose. In this paper, we investigate a promising solution that exploits the ultra wide band (UWB) technology to let cognitive radio nodes discover each other and exchange control information for establishing a communication link. The contribution of this paper is threefold: (i) We define the communication protocol needed to let cognitive radio nodes discover each other and exchange control information for link set up, (ii) we overcome the gap in coverage, which typically exists between UWB and long-medium range technologies, by using multi-hop communication, (iii) we evaluate the performance of our approach by adopting an accurate channel model and show its benefits with respect to an in-band signaling solution.
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