|
| This Article | ||
| ||
| Share | ||
| Bibliographic References | ||
| Add to: | ||
| | ||
| Search | ||
| ||
| ASCII Text | x | ||
| Roberto Airoldi, Omer Anjum, Fabio Garzia, Alexander Wyglinski, Jari Nurmi, "Energy-Efficient Fast Fourier Transforms for Cognitive Radio Systems," IEEE Micro, vol. 30, no. 6, pp. 66-76, November/December, 2010. | |||
| BibTex | x | ||
| @article{ 10.1109/MM.2010.84, author = {Roberto Airoldi and Omer Anjum and Fabio Garzia and Alexander Wyglinski and Jari Nurmi}, title = {Energy-Efficient Fast Fourier Transforms for Cognitive Radio Systems}, journal ={IEEE Micro}, volume = {30}, number = {6}, issn = {0272-1732}, year = {2010}, pages = {66-76}, doi = {http://doi.ieeecomputersociety.org/10.1109/MM.2010.84}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - MGZN JO - IEEE Micro TI - Energy-Efficient Fast Fourier Transforms for Cognitive Radio Systems IS - 6 SN - 0272-1732 SP66 EP76 EPD - 66-76 A1 - Roberto Airoldi, A1 - Omer Anjum, A1 - Fabio Garzia, A1 - Alexander Wyglinski, A1 - Jari Nurmi, PY - 2010 KW - multiprocessor system on chip KW - energy efficiency KW - cognitive radio KW - NC-OFDM KW - FFT pruning KW - parallel algorithms. VL - 30 JA - IEEE Micro ER - | |||
An energy-efficient fast Fourier transform (FFT) algorithm for cognitive radio communication systems uses a homogeneous multiprocessor system on chip. The algorithm allows for pruning of inputs such that algorithm complexity can be reduced whenever several of the FFT inputs are zero. Results show that the pruning algorithm significantly reduces energy consumption compared to a nonpruned version.
1. Federal Comm. Commission, Spectrum Policy Task Force Report, ET docket no. 02135, tech. report, 2002.
2. Q. Zhao and B. M. Sadler, "A Survey of Dynamic Spectrum Access," IEEE Signal Processing, vol. 24, no. 3, 2007, pp. 79–89.
3. J. Mitola III and G.Q. Maguire Jr., "Cognitive Radio: Making Software Radios More Personal," IEEE Personal Comm., vol. 6, no. 4, 1999, pp. 13-18.
4. R. Rajbanshi, A.M. Wyglinski, and G.J. Minden, "An Efficient Implementation of NC-OFDM Transceivers for Cognitive Radios," Proc. 1st Int'l Cognitive Radio Oriented Wireless Networks and Comm. Conf., IEEE Press, 2006, pp. 1-5.
5. J. Markel, "FFT Pruning," IEEE Trans. Audio Electroacoustics, vol. 19, no. 4, 1971, pp. 305-311.
6. D. Skinner, "Pruning the Decimation In-time FFT Algorithm," IEEE Trans. Acoustics, Speech, Signal Processing, vol. 24, no. 2, 1976, pp. 193-194.
7. Q. Zhang, A.B.J. Kokkeler, and G.J.M. Smit, "An Efficient FFT for OFDM Based Cognitive Radio on a Reconfigurable Architecture," Proc. IEEE Int'l Conf. Comm. (ICC 07), IEEE Press, 2007, pp. 6522-6526.
8. J.D. Poston and W.D. Horne, "Discontiguous OFDM Considerations for Dynamic Spectrum Access in Idle TV Channels," Proc. IEEE Int'l Symp. New Frontiers Dynamic Spectral Access Networks, vol. 1, IEEE Press, 2005, pp. 607–610.
9. A.M. Wyglinski, M. Nekovee, and Y.T. Hou, Cognitive Radio Communications and Networks: Principles and Practice, Elsevier, 2009.
10. T. Ahonen and J. Nurmi, "Hierarchically Heterogeneous Network-on-Chip," Proc. Int'l Conf. "Computer as a Tool," (Eurocon 07), IEEE CS Press, 2007, pp. 2580-2586.
11. T. Ahonen and J. Nurmi, "Programmable Switch for Shared Bus Replacement," Proc. PhD Research in Microelectronics and Electronics 2006, IEEE Press, 2006, pp. 241-244.
12. J. Kylliainen, J. Nurmi, and M. Kuulusa, "Coffee—A Core for Free," IEEE Press, Proc. Int'l Symp. System on Chip, 2003, pp. 17–22.
13. R. Airoldi et al., "Implementation of W-CDMA Cell Search on a FPGA-based Multi-Processor System-on-Chip with Power Management," Proc. Int'l Symp. Systems, Architectures, Modeling and Simulation (Samos 09), LNCS 5657, Springer, 2009, pp. 88-97.
14. J.W. Cooley and J.W. Tukey, "An Algorithm for the Machine Calculation of Complex Fourier Series," Mathematics of Computation, vol. 19, no. 90, 1965, pp. 297-301.
15. H.V. Sorensen and C.S. Burrus, "Efficient Computation of the DFT with Only a Subset of Input or Output Points," IEEE Trans. Signal Processing, vol. 41, no. 3, 1993, pp. 1184-1200.
16. R.G. Alves, P.L. Osorio, and M.N.S. Swamy, "General FFT Pruning Algorithm," Proc. 43rd IEEE Midwest Symp. Circuits and Systems, vol. 3, IEEE Press, 2000, pp. 1192–1195.

