Design of New DSP Instructions and Their Hardware Architecture for High-Speed FFT
Journal of VLSI Signal Processing Systems
DATE '03 Proceedings of the conference on Design, Automation and Test in Europe: Designers' Forum - Volume 2
A reduced-complexity fast algorithm for software implementation of the IFFT/FFT in DMT systems
EURASIP Journal on Applied Signal Processing
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After a background on digital subscriber line (DSL) technology, this article evaluates the trade-offs between programmable and custom implementations of communications products with an emphasis on xDSL modems. These trade-offs include time to market, risk, flexibility, power consumption, and cost. A key issue is the processing power required to implement the modem. The article takes a detailed look at the processing power required to implement an ADSL or VDSL modem on a programmable platform. It is demonstrated that today's digital signal processors meet the processing power requirements for an ADSL modem, and it is estimated that the processing requirements of a VDSL modem will be met in the near future