Title: Optimal set of LFSR common operators for multi-standards cognitive radio terminals

Authors: Su? Tabassum Gul; Christophe Moy; Jacques Palicot; Laurent Alaus; Dominique Noguet

Addresses: SUPELEC/IETR, Campus de Rennes, Avenue de la Boulaie, CS 47601 Cesson-Sévigné F-35576 Cedex, France ' SUPELEC/IETR, Campus de Rennes, Avenue de la Boulaie, CS 47601 Cesson-Sévigné F-35576 Cedex, France ' SUPELEC/IETR, Campus de Rennes, Avenue de la Boulaie, CS 47601 Cesson-Sévigné F-35576 Cedex, France ' CEA-LETI, Minatec, 17 Rue de Martyrs, Grenoble Cedex 9 38054, France ' CEA-LETI, Minatec, 17 Rue de Martyrs, Grenoble Cedex 9 38054, France

Abstract: The supremacy of software defined radio (SDR) technology in the field of cognitive radio (CR) is undeniable. In SDR, parameterisation is a very promising technique that consists of designing radio systems entities in a way which permits to take advantage of programmable or at least reconfigurable capabilities of the underlying hardware of SDR systems. In this paper, we describe linear feedback shift register (LFSR) as a common operator (CO) which is one of the first implementation of CO technique on the area of techniques of parameterisations. We explain our four developed common architectures to design 16 LFSR COs that can carry out several operations of multi-standard CR receivers. We also give the implementation details on Altera Cyclone II. Based on the foundation of the COs we describe a procedure which identifies an architecture that minimises the cost of the radio. Results obtained by optimisation validate the implementation results.

Keywords: SDR; software defined radio; cognitive radio; common operators; graph exploration; LFSR; linear feedback shift register; optimisation.

DOI: 10.1504/IJAACS.2012.046282

International Journal of Autonomous and Adaptive Communications Systems, 2012 Vol.5 No.2, pp.146 - 165

Published online: 05 Dec 2014 *

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