Decoder and method for decoding a tail-biting convolutional...

Details Decoder and method for decoding a tail-biting convolutional... Decoder and method for decoding a tail-biting convolutional...

2007-01-10

2010-12-07

Chase, Shelly A (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

07849386

ABSTRACT:
A decoder and method for decoding a tail-biting convolutional encoded signal using Viterbi decoding scheme performs a traceback operation for a first portion of a total code block, which includes a code block of the tail-biting convolutional encoded signal and a padded block. During the traceback operation for the first portion, a particular state at a predefined position within the first portion is stored as a circular state. The circular state is used as a traceback starting state for at least one subsequent portion of the total code block to produce a decoded signal of the code block.

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Lassing, J., Ottosson, T. and Strom, E., “Packet Error Rates of Terminated and Tailbiting Convolutional Codes,” Advanced Signal Processing for Communication Systems, Copyright 2002 [retrieved Sep. 27, 2007 from the Internet <URL:http://www.elec.now.edu.au/staff/wysocki/dspcs/papers/015.pdf>.

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