I need to compare two communications techniques for speed of equalizer convergence in a time varing channel. To this end, as a deliverable, you should supply all Matlab functions (*.m) to setup and intialize the equalizers and to process an input sample (with both input and desired output - for training section of the data frame - and just random signal data).
The first system is a QAM system (with programmable constellation size between 4 and 256). This equalizer needs to operate on "complex" signal values and equalization filters.
The second system is a VSB system (with porgrammable constellation size between 2 and 8). This equalizer needs to operate on "T/2" signal values and equalization filters.
Signal constellations are +/- odd integers derived from "nLevels" in setup code, then normalized to unit energy.
Both equalizers need to consist of a feed forward and descision feedback parts. The actualsize of these two arrays should be determined at setup. The equalizer tap adaptation with tap updates governed by variable gains also determined at setup.
You need to know the mathematics of tap updates for both feed forward and feedback sections. This is a litmus test to ensure you know enough for the project. (This means you need to supply the math for both complex and T/2 filters.)
As an example, the two function calls (for each equalizer types) are:
% Initialization
Constellation = [login to view URL](nLevels, nFF, nFB, gFF, gFB);
% Training
SigOut = [login to view URL](SigIn, DesiredOut);
% Single Signal Processing
SigOut = [login to view URL](SigIn);
Please send me your mathematics via PM
Hey! I can start working on this right-away! :) I am very experienced and I have done similar work. So, It will be easier for me to prod on with this project. I am free for the next few days and I expect you to let me work on this project and complete it for you. :)
So, we can talk further if you wish to and come to a conclusion. Please give me more details as to when the deadline is so that I can plan things accordingly. I had a look at the details and it's doable for me. :)
Expecting a response from you ASAP.
Cheers!
Thanks. :)
Nice day! :)
I am a telecommunication engineer. My thesis was about joint equalization and cancellation of cross-interference in SDH radio 128-QAM channel. I have more than 10 years of experience in Matlab simulation.