Wireless Radio Architecture
As we move forward towards the next generation of wireless protocols, the push for a better radio physical layer is ever increasing. Conventional radio architectures are limited to narrow operating regions and fails to adapt with changing technology. This is further strengthened with the advent of cognitive radio, which needs a more versatile and flexible framework that is programmable within the timing constraints of a protocol. In this research, we present an architecture for Software Defined Cognitive Radio that caters to the specific baseband processing requirements in a changing environment. We aim to provide more flexibility by deconstructing the radio pipeline into a framework of user controlled kernels that can be reconfigured at run-time. This architecture provides the barebones of a OFDM based radio physical layer that can adapt to perform a varied number of tasks in different radio networks. We also present a novel message based real-time reconfiguration method to transmit and receive a wide range of waveforms used in concurrent wireless protocols.
- Aveek Dutta, Dola Saha, Dirk Grunwald, Douglas Sicker, An Architecture for Software Defined Cognitive Radio, ACM/IEEE ANCS, La Jolla, USA, October 2010
- Aveek Dutta, Jeffery Fifield, Graham Schelle, Dirk Grunwald, Douglas Sicker, An Intelligent Physical Layer for Congnitive Radio Networks, ACM WICON, Maui, Hawaii, November 2008
- Jeff Fifield, Paul Kasemir, Dirk Grunwald and Douglas Sicker, Experiences With a Platform for Frequency-Agile Techniques, IEEE DySPAN 2007, Dublin, Ireland, April 2007.