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# Trellis Coded Modulation

10 Threads found on edaboard.com: Trellis Coded Modulation

## How to estimate channel bandwidth when modulated?

We know that modulation in general can get complicated, and the various types phase modulated schemes can pack in more information than was once thought possible. I tried to unpick a couple. 4D 2/3 TCM 8PSK DVB RS 500MBit/sec (trellis coded modulation 8-phase Phase Shift Keying + Reed-Solomon correction). and (...)

## Turbo Trellis coding using MATLAB

How does turbo trellis differ from "ordinary" trellis codes?

## Pragmatic Trellis Coded Modulation implemented in genetic algorithm based CR

I'm currently doing a project Implementing Pragmatic trellis coded modulation by genetic algorithm based cognitive radio. it involves 5 different types of scenario. I'm also doing a simulation on the sensitivity analysis of the transmission parameters. I'm encountering a problem when i'm conducting a modulation index (...)

## TCM with Viterbi decoder

Hello, I'm looking for a Matlab script of encoder and decoder (Viterbi) for trellis-coded modulation. Will be very greatful to someone who could share it with me ! Best regards

Hi, I am relatively new in MATLAB, I need some help with Matlab coding for soft decision Viterbi Decoding in trellis coded modulation(TCM). I cant understand how I can implement in coding. How to give the Euclidean distance on trellis, or how can the points be compared in distance..Please help me. Thanks a lot! Best regard.

## MATLAB Code needed - Soft Decision Viterbi decoding in TCM

Hi, I am relatively new in MATLAB, I need some help with Matlab coding for soft decision Viterbi Decoding in trellis coded modulation(TCM). Ihave read quite an amount on how soft-decision viterbi decoding works, but I cant understand how I can implement in coding. How to give the Euclidean distance on trellis, or how can (...)

## TCM implementation in matlab

Hi! i want to know why TCM trellis coded modulation is used. and also from simulation point of view what are steps needed to do for its implementation in matlab. thanks BR/

## trellis coded modulation generator sequences

Hi, can anyone convert the following codes into a form accepted by poly2trellis function in matlab, they are all of code rates = 2/3 H0 = 11 H1= 02 H2 = 04 (v=3 "constraint length) H0 = 23 H1= 04 H2 = 16 (v=4) H0 = 45 H1= 16 H2 = 14 (v=5) H0 = 105 H1= 036 H2 = 074 (v=6)

## trellis coded modulation?

hi all can someone give a simple introduction to trellis coded modulation(TCM) thanks too much

## How am I combine Turbo Coding????

"As trellis-coded modulation is an extension of binary coding methods to larger signal constellations, so is turbo-coded modulation the extension of turbo coding principles to include larger signal constellations.", the aforementioned is come from the "The trellis and turbo coding" that is (...)