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trellis coding & convlutional coding

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virgorabbit

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what is the difference between trellis coding & convlutional coding?
 

convolution coding is just a channel coding, while trellis coding also modulates the symbols,,,,


Regards
 

here is a good description:
**broken link removed**
(quoted from above)
... In the simplest term it is a combination of coding and modulation.
... where the word trellis stands for the use of trellis (also called convolutional) codes. Whereas we normally talk about coding and modulation as two independent aspects of the communications link, in TCM they are combined.
 

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