Title :
Enhancements for variable N-point streaming FFT/IFFT on REDEFINE, a runtime reconfigurable architecture
Author :
Prashank, N. Thambi ; Prasadarao, M. ; Dutta, Avinaba ; Varadarajan, Keshavan ; Alle, Mythri ; Nandy, S.K. ; Narayan, Ranjani
Author_Institution :
CAD Lab., Indian Inst. of Sci., Bangalore, India
Abstract :
3GPP LongTerm Evolution (LTE) is targeted towards variable transmission bandwidths to improve universal mobile telecommunications. This requires support for variable point FFT/IFFT (128 through 4096). ASIC solutions, one for a particular FFT is not cost-effective, while DSP solutions are not performance-effective. We hence provide a solution on REDEFINE, a dynamically reconfigurable platform, by appropriately characterizing the compute elements. We make use of the idle resources of REDEFINE to improve throughput by supporting multiple channels of FFT/IFFT.
Keywords :
3G mobile communication; fast Fourier transforms; reconfigurable architectures; 3GPP long term evolution; ASIC solutions; REDEFINE; fast Fourier transforms; idle resources; multiple channels; runtime reconfigurable architecture; universal mobile telecommunications; variable n-point streaming FFT-IFFT enhancements; variable transmission bandwidths; Application specific integrated circuits; Fabrics; Hardware; Mobile communication; Runtime; Throughput; Tiles; Fast Fourier Transform (FFT); Reconfigurable platform; Runtime Reconfiguration;
Conference_Titel :
Embedded Computer Systems (SAMOS), 2010 International Conference on
Conference_Location :
Samos
Print_ISBN :
978-1-4244-7936-8
Electronic_ISBN :
978-1-4244-7938-2
DOI :
10.1109/ICSAMOS.2010.5642067
