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virgorabbit
Joined: 29 Nov 2004
Posts: 30
Helped: 2
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 21 Mar 2006 8:15 trellis coding & convlutional coding |
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| what is the difference between trellis coding & convlutional coding?
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Naveed Alam
Joined: 06 Jan 2006
Posts: 279
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| 21 Mar 2006 11:25 Re: trellis coding & convlutional coding |
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convolution coding is just a channel coding, while trellis coding also modulates the symbols,,,,
Regards
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albert22
Joined: 20 Jul 2004
Posts: 94
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| 21 Mar 2006 14:57 Re: trellis coding & convlutional coding |
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here is a good description:
http://www.complextoreal.com/chapters/tcm.pdf
(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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