Introduction to Wireless & Cellular Communications
Introduction to Wireless & Cellular Communications
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Lecture 48 - Multiuser environment
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Переглядів: 2 687

Відео

Lecture 47 - Rake Receiver for multipath channels
Переглядів 6 тис.7 років тому
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Lecture 49 - CDMA system Capacity
Переглядів 4 тис.7 років тому
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Lecture 50 - CDMA Multiuser Detectors - Part 1
Переглядів 3,2 тис.7 років тому
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Lecture 51 - CDMA Multiuser Detectors - Part 2
Переглядів 2,4 тис.7 років тому
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Lecture 42 - Intro to Direct Sequence Spread Spectrum Communications
Переглядів 7 тис.7 років тому
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Lecture 43 - Properties of Spreading Sequences
Переглядів 3,9 тис.7 років тому
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Lecture 44 - Properties of Spreading Sequences - Part 2
Переглядів 2,8 тис.7 років тому
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Lecture 45 - Introduction to CDMA
Переглядів 4,4 тис.7 років тому
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Lecture 46 - Features of cdma2000 and WCDMA
Переглядів 5 тис.7 років тому
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Lecture 39 - Review of L19-36
Переглядів 2,5 тис.7 років тому
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Lecture 40 - Optimum Power Allocation - Water filling
Переглядів 11 тис.7 років тому
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Lecture 41 - Optimum Power Allocation - Water filling - Part II
Переглядів 4,1 тис.7 років тому
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Lecture 34 - BER in fading, Equal Gain Combining
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Lecture 36 - Alamouti Scheme - Part II, Channel Capacity
Переглядів 6 тис.7 років тому
Lecture 36 - Alamouti Scheme - Part II, Channel Capacity
Lecture 35 - Array Gain, Diversity Gain, Alamouti Scheme
Переглядів 8 тис.7 років тому
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Lecture 37 - Capacity of fading Channels, Capacity with Outage
Переглядів 11 тис.7 років тому
Lecture 37 - Capacity of fading Channels, Capacity with Outage
Lecture 38 - Channel State Information, Optimum Power Allocation
Переглядів 9 тис.7 років тому
Lecture 38 - Channel State Information, Optimum Power Allocation
Lecture 29 - Practical Channel Models (ITU, COST), Computer generation of Rayleigh fading
Переглядів 4,3 тис.7 років тому
Lecture 29 - Practical Channel Models (ITU, COST), Computer generation of Rayleigh fading
Lecture 30 - Rayleigh Fading simulation - Clark and Gans Method, Jakes’ Method
Переглядів 10 тис.7 років тому
Lecture 30 - Rayleigh Fading simulation - Clark and Gans Method, Jakes’ Method
Lecture 31 - Jakes’ Method properties
Переглядів 3,2 тис.7 років тому
Lecture 31 - Jakes’ Method properties
Lecture 32 - Introduction to Diversity, Antenna selection diversity
Переглядів 6 тис.7 років тому
Lecture 32 - Introduction to Diversity, Antenna selection diversity
Lecture 33 - Statistical Characterization of Antenna Diversity, Optimal Diversity Combining
Переглядів 4 тис.7 років тому
Lecture 33 - Statistical Characterization of Antenna Diversity, Optimal Diversity Combining
Lecture 25 - WSSUS Part II, Coherence Time, Doppler Spectrum
Переглядів 6 тис.7 років тому
Lecture 25 - WSSUS Part II, Coherence Time, Doppler Spectrum
Lecture 24 - MGF Part II, WSSUS Model
Переглядів 7 тис.7 років тому
Lecture 24 - MGF Part II, WSSUS Model
Lecture 26 - Doppler, Temporal Characteristics of Fading Channels
Переглядів 4,1 тис.7 років тому
Lecture 26 - Doppler, Temporal Characteristics of Fading Channels
Lecture 27 - WSSUS - Characterization of Time Dispersive Fading Channels
Переглядів 3,4 тис.7 років тому
Lecture 27 - WSSUS - Characterization of Time Dispersive Fading Channels
Lecture 28 - WSSUS - Classification of Fading Channels
Переглядів 5 тис.7 років тому
Lecture 28 - WSSUS - Classification of Fading Channels
Lecture 23 - Ricean and Nakagami Fading, Moment Generating Function (MGF)
Переглядів 11 тис.7 років тому
Lecture 23 - Ricean and Nakagami Fading, Moment Generating Function (MGF)
Lec 20 - Coherent versus Differential Detection
Переглядів 6 тис.7 років тому
Lec 20 - Coherent versus Differential Detection

КОМЕНТАРІ

  • @JOSEVICENTEDEPAULRODRIGUEZSALA
    @JOSEVICENTEDEPAULRODRIGUEZSALA 3 місяці тому

    excelent lecture

  • @roboman
    @roboman 8 місяців тому

    cool guy i love u

  • @sourikchoudhury4283
    @sourikchoudhury4283 Рік тому

    briliant teacher

  • @mano49j
    @mano49j Рік тому

    What is the text book mentioned in the video ?

    • @mianai99
      @mianai99 11 місяців тому

      Fundamentals of Wireless Communication - Tse and Viswanath

  • @somebodysomebody2671
    @somebodysomebody2671 Рік тому

    We have already 5g

  • @hlahtoilayangkohla9854
    @hlahtoilayangkohla9854 Рік тому

    Hi Professor, how can i get ppt. It is very supportive for my study.

  • @y_x2
    @y_x2 Рік тому

    He mix noise figure with noise factor...

  • @y_x2
    @y_x2 Рік тому

    Not all traffic are routed thru fiber optic, microwave network was used for small capacity more when the cellular begin.

  • @y_x2
    @y_x2 Рік тому

    At 43:40, in the slide in the receiver part: he reverse speaker and antenna symbol!

  • @navyjin6462
    @navyjin6462 Рік тому

    great

  • @xx-mz2eg
    @xx-mz2eg Рік тому

    Great and clear language. Very helping.

  • @rishabhsrivastava7494
    @rishabhsrivastava7494 2 роки тому

    assume a cellular system wherein a car travels at 200 Kmph speed. Calculate how often handoffs would occur if cell radius is 8 Km? Can you provide a solution to this??

  • @sooryanarayanan4273
    @sooryanarayanan4273 2 роки тому

    Interesting lecture, thanks

  • @rahulmaalgujjar
    @rahulmaalgujjar 2 роки тому

    💕💕💕

  • @sunnybherwani5912
    @sunnybherwani5912 2 роки тому

    sir ultra wideband shouod have lower time resolution why you said it is higher?

  • @sunnybherwani5912
    @sunnybherwani5912 2 роки тому

    sir how beta by sigma comes 2 in case 3 we have to convert beta by sigma in linear scale direct division in domain is not possible

  • @sunnybherwani5912
    @sunnybherwani5912 2 роки тому

    Sir when we want higher data rate then we require higher spreding factor na?

  • @pitmaler4439
    @pitmaler4439 2 роки тому

    Did you video about how the signal averaging can reduce the noise? Thank you.

  • @saraho5338
    @saraho5338 2 роки тому

    14:16 I liked the note about the polynomial if a full impulse response is to be used, thank you professor.

  • @999tktktktk
    @999tktktktk 2 роки тому

    thank you professor for spending time deriving through all of the model so that I can clearly realize the reason why those parameters are picked in the specific fashion. Really helpful video to understand Jakes' model simulation by watching your Lecture 30 and 31 ~!!!

  • @AbhishekKumar-zv1kn
    @AbhishekKumar-zv1kn 2 роки тому

    Excellent and easy to understand lecture .

  • @aqsakhan7930
    @aqsakhan7930 2 роки тому

    sir kindly tell me hazard function in rayleigh distribution

  • @basics7930
    @basics7930 2 роки тому

    Great lecture

  • @chandrakanthmangali5456
    @chandrakanthmangali5456 2 роки тому

    title content starts from 21 :11

  • @timmyyang7963
    @timmyyang7963 2 роки тому

    very well, sir

  • @maryamqaysal-tuma9919
    @maryamqaysal-tuma9919 2 роки тому

    Thanks alot sir.

  • @ekarthikv
    @ekarthikv 3 роки тому

    🙏🏽

  • @manojithalder7448
    @manojithalder7448 3 роки тому

    thank you sir

  • @debabrata2137
    @debabrata2137 3 роки тому

    31:30 Difference between circuit switch and packet switch?

    • @debabrata2137
      @debabrata2137 3 роки тому

      39:00 why pulse shaping?

    • @debabrata2137
      @debabrata2137 3 роки тому

      39:45 purpose of DAC here? Pulse shapper output is a continuous signal.

    • @aerodynamico6427
      @aerodynamico6427 2 роки тому

      Take a basic Communications class. Then come here.

  • @kisindesharon8841
    @kisindesharon8841 3 роки тому

    Great

  • @basitbinmujeeb447
    @basitbinmujeeb447 3 роки тому

    Genius

  • @basitbinmujeeb447
    @basitbinmujeeb447 3 роки тому

    Have never seen such a great professor with a presence of mind and fine depth of knowledge. Salute to you, Sir. Thank you. Love and respect from Pakistan. Both the questions from the students brought a deeper dive into the reasons behind today's technological race.

  • @bharathis8775
    @bharathis8775 3 роки тому

    Got much clarity thank you sir.

  • @souravb613
    @souravb613 3 роки тому

    কচি কচি ছেনা দুটা বিস্কুট খাবিনি!

  • @mauriliomatracia6297
    @mauriliomatracia6297 3 роки тому

    why at 45.20 is 2+(10-1)/10 instead of 3+(10-1)/10 ?

    • @mohitbhave7566
      @mohitbhave7566 2 роки тому

      3 db = 10 log2. Decibel converted into normal scale.

  • @mauriliomatracia6297
    @mauriliomatracia6297 3 роки тому

    Why is it alpha^2 in the denominator at 12:09?

    • @25meghna
      @25meghna 3 роки тому

      Here, power of noise is being calculated. So when we scale the noise by alpha, the power gets scaled by alpha^2.

  • @dahmouniproduction9804
    @dahmouniproduction9804 3 роки тому

    Hello, i think in 9:24 with doppler shifting you are meaning fD,n for the nth path which equal fD,n= fcvcos(b)/c and not fd,n which equal too fd,n = fc + fD,n and thanks very much for those great lectures

  • @WaleedTariqSethi
    @WaleedTariqSethi 3 роки тому

    How to get access to the lectures slides/PPT?

    • @goumuk
      @goumuk 3 роки тому

      nptel.ac.in/courses/106/106/106106167/ Go to Transcripts tab. Transcript pdfs will contain slides as screenshots

  • @I_rec_minecraft_later_so_sub
    @I_rec_minecraft_later_so_sub 3 роки тому

    Thanks for sharing, it is helpful to understand how it works in detail.

  • @yasserothman4023
    @yasserothman4023 4 роки тому

    what is the value of delta t here ? ua-cam.com/video/srinRfxJC1A/v-deo.html what is coherence distance ua-cam.com/video/srinRfxJC1A/v-deo.html ?

  • @johnli2026
    @johnli2026 4 роки тому

    Your lectures are the best introductions to wireless communication fundamentals that I so far found on internet. Other countries should learn how IIT professors teach.

  • @mouctechy
    @mouctechy 4 роки тому

    a great professor

  • @mouctechy
    @mouctechy 4 роки тому

    uhumm prof your explanations are clear and I am going to watch all these series thank you so much

  • @jashwantkumar5327
    @jashwantkumar5327 4 роки тому

    Can Anyone tell me . Where will I get the PPT or PDF whatever the content sir is teaching...?

  • @grouphug1013
    @grouphug1013 4 роки тому

    I'm curious as to why this is in a Electrical engineering degree ? IMO this falls more in the line for people specifically looking to get into Cellular communication as a specialty.

    • @quantumreality8279
      @quantumreality8279 4 роки тому

      Yes it is for final year students who want to specialise in cellular communication

    • @aerodynamico6427
      @aerodynamico6427 2 роки тому

      Is there a law against it? Electrical Engineering is a vast field!

  • @knightrec869
    @knightrec869 4 роки тому

    Touch on it 30.15

  • @farzanamousumijasmeen7509
    @farzanamousumijasmeen7509 4 роки тому

    Thanks

  • @ankushofficialstrange3858
    @ankushofficialstrange3858 4 роки тому

    ua-cam.com/video/f2wlHL1Sok8/v-deo.html