Programmable Digital Front-End Design for Software Defined Radio

The incoming evolution from 2G to 3G and beyond requires multimode operation of wireless communication system. In order to cope with these requirements, flexible and highly optimized digital signal processing has received growing interest. In this paper, a digital front-end (DFE) architecture for so...

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Bibliographic Details
Main Authors: Lin Fei-yu, Qiao Wei-ming, Zhang Jian-chuan, Nan Gang-yang, Li Wei-bin, Mao Wei-yu
Format: Conference Proceeding
Language:English
Subjects:
Computer architecture
digital front-end(DFE)
Digital signal processing
Field programmable gate arrays
Field-programmable Gate Array(FPGA)
Filters
Frequency conversion
programmable filter
Sampling methods
Software Defined Radio(SDR)
Software design
Software radio
Software standards
Wireless communication
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Summary:The incoming evolution from 2G to 3G and beyond requires multimode operation of wireless communication system. In order to cope with these requirements, flexible and highly optimized digital signal processing has received growing interest. In this paper, a digital front-end (DFE) architecture for software defined radio (SDR) is introduced. The system comprises of cascade of filters including economical fractional rate-change ones. All modules in the DFE are programmable. The system has been designed on Xilinx Virtex-5 XC5VSX50T FPGA device with a decimation factor ranged from 1 to 8192. And the maximum bandwidth of the DFE is 2.9Mhz.Design details and trade-offs are also described.
DOI:10.1109/NSWCTC.2010.81