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nick_533
Joined: 29 Mar 2006
Posts: 40
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 23 Apr 2006 1:44 My Final Project - Need Help ( Wireless Comm + Matlab) |
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Use Matlab for the project
The project is about GSM. While the standard modulation in GSM is GMSK, an 8-PSK modulation scheme was introduced later. The project is based on 8-PSK.
The questions below are essentially guidelines for your project, requiring you to make several choices for the parameters of filters etc. Choose carefully within valid ranges, specify your choices and assumptions clearly. Also you are free to generate and include additional results from your simulations (additional to what is asked below) if you think it will add insights.
Finally, write a descriptive report including your results and discussing them. Compare to theory wherever possible.
1) Simulate an 8-PSK modulator with a Raised Cosine (RC) pulse shaping filter, with a RC parameter of your choice. Illustrate the input-output waveforms, power spectral density and any other data that you think is useful. Use oversampling (N samples per symbol) for your simulation.
2) Simulate a AWGN channel and a demodulator. Assume perfect sampling and illustrate and discuss the performance of the modulator-channel-demodulator in terms of BER vs SNR.
3) Introduce sampling error by x% (choose x so that you get measurable results) and show and discuss the degradation in performance.
4) Replace the AWGN channel by a Rayleigh channel and repeat question (2). Choose user velocity properly to get interesting differences in performance. You may use the channel models you developed for your midterm or any other readily available matlab model.
5) Choose the (k=4, n=7) Linear Block Error Correcting code, that was discussed in class. Code the source data and repeat question (2). Show and discuss the improvement in performance.
6) Construct the GSM Normal Bursts from the source data and repeat question (5).
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nick_533
Joined: 29 Mar 2006
Posts: 40
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| 23 Apr 2006 23:00 My Final Project - Need Help ( Wireless Comm + Matlab) |
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| guys need quickly
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nick_533
Joined: 29 Mar 2006
Posts: 40
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| 26 Apr 2006 1:47 My Final Project - Need Help ( Wireless Comm + Matlab) |
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guys i need it ASAP 
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nathan80
Joined: 23 Feb 2006
Posts: 68
Helped: 5
Location: Malaysia
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| 02 May 2006 7:51 Re: My Final Project - Need Help ( Wireless Comm + Matlab) |
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i have attached a m-file (in the form of txt file) from my previous post graduate assignment which requires me to simulate a bpsk transmission using baseband envelope approach; using either rectangle, sync or raised cosine pulse shaping through a AWGN or Rayleigh flat fading channel. i have also wrote the commands to plot the ber vs snr plot.
well, i guess you can use to modify by m-file as i have specified very clearly the meaning of each command in the attached m-file.
Last edited by nathan80 on 02 Apr 2007 5:17; edited 1 time in total |
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nick_533
Joined: 29 Mar 2006
Posts: 40
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| 02 May 2006 23:27 My Final Project - Need Help ( Wireless Comm + Matlab) |
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| yes is ur code works for entire problem ??
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nathan80
Joined: 23 Feb 2006
Posts: 68
Helped: 5
Location: Malaysia
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| 03 May 2006 8:24 Re: My Final Project - Need Help ( Wireless Comm + Matlab) |
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| well, it works. u can try running it.
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nick_533
Joined: 29 Mar 2006
Posts: 40
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| 03 May 2006 20:51 My Final Project - Need Help ( Wireless Comm + Matlab) |
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hey i am still working on m-file
i need to edit it for this project rite ?
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nick_533
Joined: 29 Mar 2006
Posts: 40
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| 09 May 2006 20:33 My Final Project - Need Help ( Wireless Comm + Matlab) |
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| guys today is my final day for submission if any one of u r online plz lemme know
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