Mod-01 Lec-33 Impact of Carrier Frequency Offset (CFO) in OFDM

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[@poiuwnwang7109]

@14:02， should the horizoantal green curly bracket of interference include the sumation over k? If not, Why the sin term @24:49 has a summation and E[|H|^2] and E[|X|^2] dont have summation term?

[@amehatsegaye462]

Wow! I never thought CFO has this much severe effect in OFDM system.

[@rishabhsrivastava1241]

@24:55 how can the X*H term come out of summation to give average power expression P*|H|^2? X and H both are varying with k that is the summation variable, I dont quite get how it comes out of summation.

[@efree5601]

May I ask, at 13:27, why the numerator of the ICI term is sin(pi*e) instead of sin[pi*(k+e-l)]? Thank you!!

[@varungupta7666]

E Ren k and l are integers, hence sin[pi*(k+e-l)] = sin[pi*e] or -sin[pi*e]. Anyway here the primary focus is the fact that this term contributes to intercarrier interference. Sign of the term is not important.

[@efree5601]

Varun Gupta Thank you~~~

[@mejdibenzarti9063]

mpact of Carrier Frequency Offset (CFO) in ******MIMO-OFDM****** ?????????????????

[@poiuwnwang7109]

@40:09, should 8.25 be converted to dB before we compare it with epsilon=0?

[@sylarlao1201]

at 5:32, the DFT shouldn't be divided by N. Also can anyone recommend some synchronization introductory lectures? Thx.

[@poiuwnwang7109]

I was wondering about 1/N too. Yes, you are right.

[@deepak-ne8vl]

Hi