Curious Being
Curious Being
  • Видео 51
  • Просмотров 292 738
Imperfections in an OFDM System | IQ Impairments
This video explains about IQ Impairments.
Source of IQ Impairments
Impact of IQ Impairements
Signal Model of IQ Impairments
Carrier Frequency Offset (CFO) - ruclips.net/video/5ngjfkx1704/видео.html
Sampling Clock Offset (SCO) - ruclips.net/video/GQcaAj4mJmY/видео.html
Phase Noise - ruclips.net/video/KDP-5K_nzjk/видео.html
5G NR Physical Layer Concepts: ruclips.net/video/RagHojSWEz8/видео.html
5G NR Interview Questions: ruclips.net/video/WvbboFbClDg/видео.html
Short Course on OFDM and Signal Processing for 5G NR : ruclips.net/video/BK1JCVk0x78/видео.html
Digital Signal Processing: ruclips.net/video/AUifaTWGV2g/видео.html
Просмотров: 1 651

Видео

Imperfections in an OFDM System | Carrier Frequency Offset (CFO)
Просмотров 4,5 тыс.3 года назад
This video explains about CFO. Source of CFO Impact of CFO Signal Model of CFO Estimation and Compensation technique of CFO Sampling Clock Offset (SCO) - ruclips.net/video/GQcaAj4mJmY/видео.html Phase Noise - ruclips.net/video/KDP-5K_nzjk/видео.html IQ Impairments - ruclips.net/video/NKmcFht4cT8/видео.html 5G NR Physical Layer Concepts: ruclips.net/video/RagHojSWEz8/видео.html 5G NR Interview Q...
Imperfections in an OFDM System | Phase Noise
Просмотров 1,2 тыс.3 года назад
This video explains about phase noise. Source of phase noise Impact of Phase Noise Signal Model of Phase Noise Estimation and Compensation technique of phase noise Carrier Frequency Offset (CFO) - ruclips.net/video/5ngjfkx1704/видео.html Sampling Clock Offset (SCO) - ruclips.net/video/GQcaAj4mJmY/видео.html IQ Impairments - ruclips.net/video/NKmcFht4cT8/видео.html 5G NR Physical Layer Concepts:...
Imperfections in an OFDM System | Sampling Clock Offset (SCO)
Просмотров 2 тыс.3 года назад
This video explains about Sampling Clock Offset (SCO). Source of SCO Impact of SCO Signal Model of SCO Estimation and compensation technique of SCO Carrier Frequency Offset (CFO) - ruclips.net/video/5ngjfkx1704/видео.html Phase Noise - ruclips.net/video/KDP-5K_nzjk/видео.html IQ Impairments - ruclips.net/video/NKmcFht4cT8/видео.html 5G NR Physical Layer Concepts: ruclips.net/video/RagHojSWEz8/в...
Imperfections in an OFDM System | Introduction
Просмотров 9273 года назад
This video introduces about various imperfections in an OFDM system. Carrier Frequency Offset (CFO) - ruclips.net/video/5ngjfkx1704/видео.html Sampling Clock Offset (SCO) - ruclips.net/video/GQcaAj4mJmY/видео.html Phase Noise - ruclips.net/video/KDP-5K_nzjk/видео.html IQ Impairments - ruclips.net/video/NKmcFht4cT8/видео.html 5G NR Physical Layer Concepts: ruclips.net/video/RagHojSWEz8/видео.htm...
How DFT-s-OFDM helps in reducing PAPR (Peak to Average Power Ratio)
Просмотров 5 тыс.3 года назад
OFDM has many advantages but few disadvantages also. One of them is high PAPR (Peak to Average Power Ratio). In cellular communication technologies like 5G NR and LTE, DFT s OFDM is used for low PAPR applications. This video explains the framework of DFT-s-OFDM, different subcarrier mapping techniques, simulations results for PAPR and the analytical comparison between OFDM and DFT-s-OFDM using ...
PTRS in 5G NR | Saviour from Phase Noise for mmWave 5G NR
Просмотров 3,5 тыс.3 года назад
5G Millimeter wave (mmWave) bands can offer much larger available spectrum bandwidth and thus are considered as one of the most promising approaches to significantly boost the capacity in 5G NR. However, devices and network radio nodes operating on mmWave bands suffer from phase noise and without correction of phase noise, the performance of the network could potentially suffer significant loss...
OFDM in 5G NR
Просмотров 3,9 тыс.3 года назад
This is 12th video in the series of course on OFDM and Signal Processing for 5G NR. OFDM is a backbone of modern communication technologies like 5G NR. This video explains an overview of OFDM in 5G NR. It talks about number of Resource blocks from 3GPP specifications. Download Transcript of the video in pdf format: url-x.it/HS0Ry0s Follow us on LinkedIn: www.linkedin.com/company/curious-being R...
Why OFDM is needed?
Просмотров 1,8 тыс.3 года назад
This is 10th video in the series of course on OFDM and Signal Processing for 5G NR. OFDM is a backbone of modern communication technologies like 5G NR. This video describes why OFDM is needed so that it sets a motivation to understand OFDM. 00:00 - Why OFDM 01:07- What is FDM 04:18 - Disadvantages of FDM 06:40 - Multipath Fading 08:51 - Frequency Selective Fading Download Transcript of the vide...
Understanding OFDM
Просмотров 2,7 тыс.3 года назад
This is 11th video in the series of course on OFDM and Signal Processing for 5G NR. OFDM is a backbone of modern communication technologies like 5G NR. This video describes the concept of OFDM. It also describes how OFDM overcomes frequency selective fading, Inter Symbol Interference(ISI). It also explains the meaning of orthogonality in OFDM, meaning of cyclic prefix and how OFDM uses cyclic p...
Fourier Transform in 5G NR
Просмотров 1,6 тыс.3 года назад
This is 9th video in the series of course on OFDM and Signal Processing for 5G NR. It discusses the importance of Fourier Transform in 5G NR. It discusses about where Fourier Transform is used and why some signal processing is done in the frequency domain instead of the time domain. It also discusses how to calculate FFT Size for a specific Bandwidth and Subcarrier Spacing for both FR1 and FR2 ...
Importance of DFT & FFT
Просмотров 9843 года назад
This is 8th video in the series of course on OFDM and Signal Processing for 5G NR. It discusses the importance of DFT and FFT which are commonly used Fourier transforms in industry. Download Transcript of the video in pdf format: url-x.it/mD27HCY Follow us on LinkedIn: www.linkedin.com/company/curious-being Related Videos: ruclips.net/p/PLfUa5X9whlE9E2CYt3_LArfpFx_8ZYDrJ 5G NR Physical Layer Co...
Digital Frequency is Periodic
Просмотров 2303 года назад
This is 7th video in the series of course on OFDM and Signal Processing for 5G NR. It discusses about the periodicity of DTFT Spectrum. DTFT Spectrum is periodic with period equal to 2pi. Download Transcript of the video in pdf format: url-x.it/mD27HCY Follow us on LinkedIn: www.linkedin.com/company/curious-being Related Videos: ruclips.net/p/PLfUa5X9whlE9E2CYt3_LArfpFx_8ZYDrJ 5G NR Physical La...
Introduction to Fourier Transform | Different types of Fourier Transform.
Просмотров 7333 года назад
This is 6th video in the series of course on OFDM and Signal Processing for 5G NR. This video explains about sampling theory. Fourier Transform is a basic building block of any communication system. It is used to convert the time domain signal to frequency domain signal. This video describes why Fourier Transform is needed and different types of Fourier Transform. 00:00 - Introduction to Fourie...
UpSampling, DownSampling
Просмотров 4,2 тыс.3 года назад
This is 5th video in the series of course on OFDM and Signal Processing for 5G NR. It explains the concept of upsampling and downsampling. It also describes how signal looks in frequency domain after upsampling and downsampling. Download Transcript of the video in pdf format: url-x.it/809nTfW Follow us on LinkedIn: www.linkedin.com/company/curious-being Related Videos: ruclips.net/video/ObL1k0i...
Meaning of Frequency Axis in DTFT
Просмотров 4343 года назад
Meaning of Frequency Axis in DTFT
Can Sampling Frequency be lower than Nyquist Rate?
Просмотров 7133 года назад
Can Sampling Frequency be lower than Nyquist Rate?
What to remember when doing Sampling | Aliasing, Sampling Frequency
Просмотров 6753 года назад
What to remember when doing Sampling | Aliasing, Sampling Frequency
Sampling Theory | Converting a Continuous Time Signal to Discrete Time
Просмотров 13 тыс.3 года назад
Sampling Theory | Converting a Continuous Time Signal to Discrete Time
Highlights of Course on OFDM and Signal Processing for 5G NR
Просмотров 9903 года назад
Highlights of Course on OFDM and Signal Processing for 5G NR
What is AWGN? | Additive White Gaussian Noise
Просмотров 30 тыс.3 года назад
What is AWGN? | Additive White Gaussian Noise
What and Why of MIMO ? | Understand MIMO Communication
Просмотров 2,9 тыс.3 года назад
What and Why of MIMO ? | Understand MIMO Communication
How to Decide Numerology in 5G NR
Просмотров 3,3 тыс.3 года назад
How to Decide Numerology in 5G NR
5G NR Interview Questions Series | Part 3
Просмотров 2,9 тыс.4 года назад
5G NR Interview Questions Series | Part 3
5G NR Interview Questions Series | Part 2
Просмотров 4,7 тыс.4 года назад
5G NR Interview Questions Series | Part 2
5G NR Interview Questions Series | Part 1
Просмотров 13 тыс.4 года назад
5G NR Interview Questions Series | Part 1
5G NR Physical Layer | Chapter 13| Carrier Frequency Offset (CFO)| With MATLAB Example
Просмотров 4,5 тыс.4 года назад
5G NR Physical Layer | Chapter 13| Carrier Frequency Offset (CFO)| With MATLAB Example
Digital Signal Processing | Lecture 10 | Discrete Fourier Transform (DFT)
Просмотров 9434 года назад
Digital Signal Processing | Lecture 10 | Discrete Fourier Transform (DFT)
Digital Signal Processing |Lecture 9 |Sampling of Continuous Time Signals : Nyquist Sampling Theorem
Просмотров 1,4 тыс.4 года назад
Digital Signal Processing |Lecture 9 |Sampling of Continuous Time Signals : Nyquist Sampling Theorem
Digital Signal Processing | Lecture 8 | Z transform
Просмотров 1,2 тыс.4 года назад
Digital Signal Processing | Lecture 8 | Z transform

Комментарии

  • @yuvarajnavaneethan7348
    @yuvarajnavaneethan7348 19 дней назад

    Very simple explanation , Thanks.

  • @sameerapatan6471
    @sameerapatan6471 2 месяца назад

    Thank you so much sir it helped me a lot

  • @upcoming_Engineer_
    @upcoming_Engineer_ 2 месяца назад

    Nice Explanation, really loved it ❤

  • @gangaprasadbokare844
    @gangaprasadbokare844 4 месяца назад

    Very nice sir

  • @perceptron9834
    @perceptron9834 7 месяцев назад

    and how exactly does this constellation reduce the PAPR ?

  • @rish6701
    @rish6701 8 месяцев назад

    Is In sc-ofdm transmission ofdm siganl is modulated for long distance transmission

  • @prasadhegde5398
    @prasadhegde5398 8 месяцев назад

    Is my understanding correct please help. If we decide that two signal should experience same channel condition then we assign same antenna port to those signals.

  • @sahiba421
    @sahiba421 9 месяцев назад

    why GRV is used for modelling channel noise?

  • @videosextra9434
    @videosextra9434 11 месяцев назад

    Very nice explanation video thanks for free sharing... Please make more 5G videos loved it❤🎉👌🏻😀

  • @yasoda1
    @yasoda1 Год назад

    One of the most accurate and informative series in RUclips on 5G

  • @pughalzhenthi5839
    @pughalzhenthi5839 Год назад

    When doing initial Cell search , Ue does not know the SCS with which the Cell is deployed. So, how UE will SSB Blocks as its transmission in Time Domain depends on specific slots based on SCS. Whether UE need to capture samples twice with different symbol durations with SCS 15KHz and 30Khz separately to identify the SCS to proceed with further decoding of SSB?

  • @georgioskarouzos7418
    @georgioskarouzos7418 Год назад

    Can we see from L3 messages the 5g UL waveform either CP-OFDM or DFT-s-OFDM that is used? Thank you

  • @ChenYuanyuan-c5j
    @ChenYuanyuan-c5j Год назад

    Why DFT-s-OFDM only support rank 1? Thanks.

  • @WaterSkyYT
    @WaterSkyYT Год назад

    Hello, Thanks for sharing. May I ask a question about the relationship between supportedSRS-TxPortSwitch IE and UL MIMO: If the UE capability of band N41's supportedSRS-TxPortSwitch=1T4R, does it means that UE cannot support UL 2x2 MIMO on band N41? Thanks.

  • @UET_TECH
    @UET_TECH Год назад

    nice lecture

  • @kidsanapongpuntsri5967
    @kidsanapongpuntsri5967 Год назад

    those 4 symbols use 256 FFT, so why not 4096. Then, is symbol time different from others?

  • @krishanuspirit
    @krishanuspirit Год назад

    Excellent video to show the impact of IQ imbalances in the Frequency Domain. Useful for OFDM systems

  • @eliseolopez2790
    @eliseolopez2790 Год назад

    I don't understand math

    • @rishabhsrivastava1241
      @rishabhsrivastava1241 6 месяцев назад

      This answers your question itself, first do the math on your own and then re watch the video

  • @eliseolopez2790
    @eliseolopez2790 Год назад

    I don't understand

  • @jjjyotish
    @jjjyotish Год назад

    Coherence BW will of course have an effect on deciding your SC spacing. U want the SC spacing to be less than coherence BW to avoid ISI.

  • @harry_kim6940
    @harry_kim6940 Год назад

    2023.07.23 감사합니다.

  • @kashyap589
    @kashyap589 Год назад

    More like reading the things , rather explaining .Could have been better if explained each process detailed even video length becomes more

  • @observer4322
    @observer4322 Год назад

    Some videos need a love reaction. This is one of them.

  • @paulabnazerbalure8135
    @paulabnazerbalure8135 Год назад

    Simple and understandable buy for your voice is low in base.. Thanks

  • @MrIshaqm
    @MrIshaqm Год назад

    Excellent explanation. I watched so many videos on 5G numerology and this video has the best explanation. Thanks

  • @moaazsherif5236
    @moaazsherif5236 Год назад

    Hello, thanks so much for going through the signal model and derivation. I have a question. what would be the expression if the SCO h[n], the channel is included within signal model?

    • @moaazsherif5236
      @moaazsherif5236 Год назад

      if there is any Document, it would be great if you share it, thanks so much

  • @kashyap589
    @kashyap589 Год назад

    Good one , Could have been better if more detailed !!!

  • @Hemam-b2q
    @Hemam-b2q Год назад

    Hi @Curious being As you have mentioned in the slide. if larger power budget techniques can be easily deployed in DL then why do we still have PAPR issue in DL.. I mean we can deploy those techniques in DL right...Could you please help to clarify this?

    • @curiousbeing8585
      @curiousbeing8585 Год назад

      Large Power budget comes with a side effects like ACLR and there are always some regulations on amount of power that can be transmitted, anyways PAPR is mostly concerning in UL

  • @manmohanmishra4562
    @manmohanmishra4562 Год назад

    Very informative video sir❤

  • @anjanamnair7134
    @anjanamnair7134 Год назад

    Is this antenna port concept same as that in LTE?

  • @xiaofengcheng6692
    @xiaofengcheng6692 Год назад

    Dear sir, tks, Q1 why need two codewords? Q2 could you brief introduction the single codeword &Two codewords. one TB after encode(LDPC,Turbo),become a codewords

  • @vinaykumartheyoutuber5386
    @vinaykumartheyoutuber5386 Год назад

    Sir i want Explanation on DFT-S-OFDM in detail. Please reply i want to talk to you

  • @phenomundertaker2789
    @phenomundertaker2789 Год назад

    thanks a lot for your help this goes a really long way for helping students like us, really a lot of gratitude for you

  • @tapassaha8855
    @tapassaha8855 Год назад

    If 15 kHz subcarrier = slot per subframe is 1 slot = 1 ms = 14 OFDM symbol, then 30 kHz subcarrier = slot per subframe is 2 slots = 1 ms = 28 OFDM symbol, and for 60 kHz subcarrier = slot per subframe, it is 4 slots = 1 ms = 56 OFDM symbol. Now, my question is this: 1. How much bandwidth contains in each slot, for 15 kHz, 30 kHz, and 60 kHz? 2. How much bandwidth contains in 1 OFDM symbol

  • @myceliumbrick1409
    @myceliumbrick1409 2 года назад

    This video actually helped me a lot lmao. thanks !

  • @jaredelfaz2558
    @jaredelfaz2558 2 года назад

    thank you brother, very help ful

  • @jaredelfaz2558
    @jaredelfaz2558 2 года назад

    @38:00 N = 16 how sir ? how's the maths ? I thought it was 2pi/0.75pi

  • @rajendra259
    @rajendra259 2 года назад

    Hello Sir, Too good. You made it very simple to understand with relevant examples and tables. Thanks a lot!!

  • @afzalhussain1811
    @afzalhussain1811 2 года назад

    Bro content is very good, can you please upload the complete slides ?

  • @johnaweiss
    @johnaweiss 2 года назад

    Thermal noise simply explained. Very nice to explain the color analogy.

  • @Nobody-yp4ru
    @Nobody-yp4ru 2 года назад

    Nice, informative Keep it up👍

  • @sukumarane2302
    @sukumarane2302 2 года назад

    Thanks ..good explanation ..So we select only one sub carrier spacing in one cell depends of cell size? Is n’t ? Is it possible to select more than one sub carrier spacings in one cell ?

  • @BAL31m89
    @BAL31m89 2 года назад

    Can you please start sharing more knowledge on 5G. We are waiting since long

  • @manjurulahsanriheen2816
    @manjurulahsanriheen2816 2 года назад

    Nice explanation. Was looking for something like this

  • @venumaheshpallapu
    @venumaheshpallapu 2 года назад

    Hey I really like the videos the main reason being making videos short but infused lots of information. Thanks alot for making... I have just started prep for my interviews. Hoping that I will be able to crack with the help of your material.

  • @charliekeith9704
    @charliekeith9704 2 года назад

    Thanks for this very informative video. Can you please also share/make a video on SSB position calculation using PointA, offsetToPointA, ssb_subcarrieroffset, absoluteFrequencySSB?

  • @ankitdsh18
    @ankitdsh18 2 года назад

    Hello sir, do you have any reference for the math you have done in this video? Also, how can I join thee video sessions?

  • @amitbora6336
    @amitbora6336 2 года назад

    Hi, isn't it that the uplink involves communication link from base station while the downlink for the communication link towards the UE? in 01:30 I see the opposite being written on it.

    • @curiousbeing8585
      @curiousbeing8585 2 года назад

      Uplink is from UE to Base station, while Downlink is from Base Station to UE

    • @amitbora6336
      @amitbora6336 2 года назад

      @@curiousbeing8585 Got it thanks!

  • @varun284
    @varun284 2 года назад

    audio very low hai

    • @curiousbeing8585
      @curiousbeing8585 2 года назад

      you can watch this video for better audio ruclips.net/video/5RSHkriIu8o/видео.html

  • @timmazumdar7167
    @timmazumdar7167 2 года назад

    Very good Video,