500 Mb/s soft output Viterbi decoder

  title={500 Mb/s soft output Viterbi decoder},
  author={Engling Yeo and Stephanie Augsburger and Wm.R. Davis and Borivoje Nikolic},
  journal={Proceedings of the 28th European Solid-State Circuits Conference},
Two 8-state, 7-bit soft output Viterbi decoders matched to an EPR4 channel and a rate-8/9 convolutional code are implemented in 0.18µm CMOS technology. Architectural transformation of the add-compare-select structures and modification of the register exchange allow a high throughput with small area overhead. The 4mm2chip has been verified to decode at 500Mb/s with 1.8V supply. These decoders are used with Turbo codes, which have been demonstrated to achieve information rates very close to the… CONTINUE READING
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