New architectures for fast convolutional encoders and threshold decoders

  • Authors:
  • D. Haccoun;P. Lavoie;Y. Savaria

  • Affiliations:
  • Dept. of Electr. Eng., Ecole Polytech. de Montreal, Que.;-;-

  • Venue:
  • IEEE Journal on Selected Areas in Communications
  • Year:
  • 2006

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Abstract

Several new architectures for high-speed convolution encoders and threshold decoders are developed. In particular, it is shown that new architectures featuring both parallelism and pipelining are promising from a speed point of view. These architectures are practical for a wide range of coding rates and constant lengths. Two integrated circuits featuring these architectures have been designed and fabricated in a CMOS 3-μm technology. The two circuits have been tested and can be used to build convolutional encoders and definite threshold decoders operating at data rates above 100 Mb/s. It is shown that with these architectures, encoders and threshold decoders could easily be designed to operate at data rates above 1 Gb/s