Four-stage pipeline based VDSL2 Viterbi decoder

Details Four-stage pipeline based VDSL2 Viterbi decoder Four-stage pipeline based VDSL2 Viterbi decoder

2006-12-21

2011-10-18

McCarthy, Christopher (Department: 2113)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

08042032

ABSTRACT:
A novel method to divide the whole decoding process of the Viterbi decoder into four pipeline stages and the Viterbi decoder therefore. With an appropriate choice on the system clock, the invention trade-off the decoding speed with the hardware cost so that the designed Viterbi decoder is able to satisfy the decoding speed requirement for the highest speed profile in VDSL2 systems, 30 MHz profile. At the same time, with four-stage pipeline to just enough to meet the speed requirement, the hardware cost for the new designed Viterbi decoder is reduced compared with single-staged decoding.

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