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Evaluation of Granularity of Reconfigurable Architectures for Wireless Communication Applications

Nazarieh, Masoumeh | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42123 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Hemmat yar, Afshin
  7. Abstract:
  8. Wireless communication applications need high computing power, flexibility and scalability. Although ASICs have the ability of high computing power but they are not flexible to changing or completing of communication protocols. On the other hand, general purpose microprocessors or DSPs are flexible, but do not provide sufficient computing power. Thus devices with reconfigurable architecture have been proposed as a compromise between ASICs and microperocessors. One of the main features of reconfigurable devices is the granularity. The granularity of a reconfigurable devices shows the amount of computing power incorporate in a processing element. In this thesis we have evaluated different granularity of reconfigurable architectures and have studied the effect of cluster size and lookup table (LUT) size on the delay and area factors for wireless communication applications. We have considered the most widely applicable components in wireless communications and have implemented them on different devices with different granularities. The results show that using 6-input LUTs not only has no effect on delay, but also wastes area. To improve area and delay, the best choices are using 4-input LUTs for logic slice, 6-input LUTs for memory slice, two register instead of one for each LUT and packing four LUTs in a slice. Besides, we studied various components of wireless communication applications and regarding their implementaion, we propose an appropriate hard logic for using in reconfigurable devices. Results shows using DSP, multiplexers and XOR logic gate in FPGAs reduces area and delay.
  9. Keywords:
  10. Granulation ; Wireless Communication ; Reconfigurable Architecture

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