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Simulation and Synthesis of 2048 point FFT/IFFT for Mobile Wimax 802.16e
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 65 - Number 25 |
| Year of Publication: 2013 |
| Authors: Unnati C Mehta, Satyendra Sharma |
10.5120/11269-6245
|
Unnati C Mehta, Satyendra Sharma . Simulation and Synthesis of 2048 point FFT/IFFT for Mobile Wimax 802.16e. International Journal of Computer Applications. 65, 25 ( March 2013), 1-4. DOI=10.5120/11269-6245
Abstract
This paper represents 2048 point Fast Fourier Transform and its inverse (FFT/IFFT) for Mobile Wi-MAX. Modified architecture also provides concept of local ROM module and variable length support from 128~2048 point for FFT/IFFT. UMC 0. 18µm is used to design the same. FFT/IFFT chip consumes 266. 81mW at 40MHz, 130. 74mW at 20MHz and 65mW at 10 MHz for length of 2048 point. Its core size is 2. 6mm x 2. 6mm. Its latency is 2050 clock cycle with maximum clock frequency 40MHz. Start up time for the chip is N/2 clock cycle where N is the length of FFT/IFFT. 16 bit word length with fixed point precision is used for entire implementation. As Wi-MAX is used for Metropolitan Area Network, it uses Orthogonal Frequency Division Multiple Access scheme.
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