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Sriram Tadavarty


Last seen: 4 days ago

MathWorks

315 total contributions since 2018

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Answered
5G Positioning via Position Reference Signal
Hi there, PRS repetition time gap is the slot offset between two consecutive repetition indices of all the PRS resources in a P...

10 days ago | 0

Answered
How to calculate RSRP of an SS Burst in the receiver?
Hi Filipa, The RSRP measurement comes after the OFDM demodulation step. Just to note, channel estimation step is not performed ...

10 days ago | 0

Answered
Matlab Code for Performance Analysis (BER vs Eb_N0) of BPSK, QPSK & 16QAM, on 4G LTE
Hi Theman, Bit error rate (BER) performance of a modulation scheme is independent of the technology used. To get BER of PDSCH ...

10 days ago | 0

Answered
how to convert cdl channel to awgn channel in nrpdsch link level simulation
Hi Govindu, The NR PDSCH Throughput example does addition of AWGN to the waveform passed through the CDL/TDL channel. So, AWGN...

10 days ago | 0

Answered
does matlab 2015a supports massive mimo and 5G
Hi Chethan, 5G support in MATLAB is through 5G Toolbox from MATLAB release R2018b and through 5G Library (add-on for LTE Toolbo...

10 days ago | 0

Answered
System-level simulation using 5G tool box
Hi KK14, 5G library add-on doesnot contain system-level simulation examples. Download and install 5G Toolbox and use latest re...

10 days ago | 0

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Answered
NR PDSCH running time
Hi Ayesha, If you are using multiple SNR points, then use parfor statement which is commented out in the code to have faster si...

10 days ago | 0

Answered
5G NR -plot constellation
Hi Pavan, If you have IQ data in .mat file, open MATLAB and then load the mat file, which will bring the data present in .mat f...

10 days ago | 0

Answered
nrTimingEstimate 5G toolbox
Hi Maryam, nrTimingEstimate function of 5G Toolbox is available only from MATLAB R2019b. Please look after the MATLAB version ...

10 days ago | 0

Answered
How to generate a 5G mmWave waveform
Hi Nathan, 5G Toolbox contains the nrWaveformGenerator function, waveform generator App, downlink waveform generation and uplin...

10 days ago | 0

Answered
Practical timing offset and channel estimation in 5G toolbox
Hi Medhat, The functions h5gPerfectTimingOffset and h5gPerfectChannelEstimate are only used for perfect estimates. So, it would...

10 days ago | 0

Answered
5G Waveform Spectral Analysis and use for 5G transmission.
Hi Christian, I am not sure, if you are still working of that library. Just for information, to create 5G waveforms, use 5G To...

10 days ago | 0

Answered
Defining values into zeros matrix
Hi, You can directly execute q= 0:1:360; s4=[(0.096.*cos(q))-(0.168.*sin(q))] Regards, Sriram

10 days ago | 1

| accepted

Answered
wrong number of rows of cell array using length()-function
Hi Nik, length returns the length of the largest array dimension in X. For vectors, the length is simply the number of elements...

2 months ago | 0

Answered
5G NR Channel Estimation by Slot instead DM-RS
Hi Fatih, You can use nrChannelEstimate directly and provide all the symbol values and indices as arguments. Regards, Sriram

2 months ago | 0

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Answered
Understanding the Matlab code
Hi Rehman,, The bolded line in the code is d_T = d'; The above lines indicates complex conjugate transpose of matrix d is a...

2 months ago | 1

| accepted

Answered
HDL OFDM Transmitter Reference Application
Hi Nisha, Please ensure you have the products HDL Coder, Wireless HDL Toolbox and Simulink installed in MATLAB. Also, ensure yo...

2 months ago | 0

| accepted

Answered
While loop if condition
Hi Braden, You can add these conditions in the while loop. (~isreal(left)) % To check if left is a complex number (imag(left)...

2 months ago | 0

| accepted

Answered
Delete the first element from each first row inside the cell array
Hi Daria, You can try A1 = cellfun(@(x) x(2:end), A, 'UniformOutput', false) For more information about cellfun, look here. ...

2 months ago | 0

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Answered
1x0 emtpy double row vector?
Hi Metin, In MATLAB, the colon operator indicates the range of values that are used for an operation. lowestNum:HighestNum is ...

2 months ago | 0

Answered
How to convert array so that I have only numerical values
Hi Pavan, As from the snippet provided, i can see a pattern where from 6 element the numeric value starts and has till last but...

2 months ago | 0

Answered
BER in scatter plot
Hi Darshan, BER is not releated to complex symbols. So, it can'e be known from scatter plot. You need to first demodulate the ...

3 months ago | 0

Answered
How to design a filter to pass frequencies between 0 and 12Hz
Hi Hishan, You can confirm if your filter designed meets the requirements, by looking at the frequency response of the filter u...

3 months ago | 0

Solved


Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

3 months ago

Answered
5G DMRS sequence generation
Hi Bryan, The function nrPRBS accepts a vector or a scalar to specify the number of elements in the sequence, n. When n is spe...

4 months ago | 0

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Answered
which filter generate after prepossessing signals into Signal Analyzer app, IIR or FIR ?
HI Dhiraj, The singal analyzer app, preprocess the signal using these functions for the corresponding filters: lowpass, (Low p...

5 months ago | 1

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Answered
MODELING POWER AMPLIFIER IN MATLAB AND DPD BLOCK DESIGN
Hi Madhurima, For quick start, you can look after the video here and the corresponding example here. Hope this helps. Regards...

5 months ago | 0

Answered
physical layer implementation of ieee 802.11ah
Hi, IEEE 802.11 ah physical layer simulation framework is available with WLAN Toolbox. For Tx, Rx and channel modeling relat...

5 months ago | 0

Answered
sort applied after CCE-TO-REG mapping post interleaving
Hi Yatin, The "sort" is used to effect the frequency-first filling *per OFDM symbol* for the resource blocks within a control c...

5 months ago | 0

Answered
How can I run 5G NR Downlink Signal Generator
Hi Chanuk, The application shown in the video is a demo file and is made up using the 5G Toolbox. To generate the NR-TM or FRC...

5 months ago | 0

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