Timeline for Educational purpose - What is the correct way to simulate a multipath fading channel which has ISI
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| May 29, 2017 at 18:50 | history | tweeted | twitter.com/StackSignals/status/869264766052782082 | ||
| May 29, 2017 at 8:18 | vote | accept | SKM | ||
| May 28, 2017 at 22:56 | answer | added | AlexTP | timeline score: 7 | |
| May 28, 2017 at 21:36 | comment | added | SKM | The above example is for 5 path fading channel. If I am asked what is the sampling frequency, what is the delay spread and and how is ISI introduced here in this example, I don't know the answer | |
| May 28, 2017 at 21:27 | comment | added | SKM | If the correct method accompanied by the code is shown where I can see the delay spread greater than the symbol duration and ISI being introduced would help in understanding the concept. Is the way I have generated data wrong? | |
| May 28, 2017 at 21:25 | comment | added | SKM |
@AlexTP: In non-technical terms, when the data symbols overlap each other because they are too close or because of the delay. I have data x generated as shown in the code, where I don't know the sampling frequency. If I expand the above FIR model for the real domain case, say 3 channel coefficients, $h = [1,0.2,0.3]$ then for the $y(3) = h(1)*x(3) + h(2)*x(2) + h(3)*x(1)$ would be the output at time instant 3. In theory it says that if the delay spread is greater that the symbol duration then we get ISI. Where is the ISI here, I don't understand.
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| May 28, 2017 at 12:55 | comment | added | AlexTP | what do you understand about the term "inter-symbol-interference" ? | |
| May 27, 2017 at 18:48 | history | asked | SKM | CC BY-SA 3.0 |