# Abdelwahab Afifi

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**Content Feed**

Question

Obtaining CSI of the guard-band subcarrier in 5G toolbox

Is it possible to perform channel estimation for all subcarriers including (in-band & guard-band subcarriers) using 5G toolbox ?...

24 giorni ago | 0 answers | 0

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answersQuestion

CSI of the guard-band subcarrier in 5G channel

my ultimate goal is to use 5G toolbox to estimate the compete channel response (for in-band subcarriers & guard-band subcarrier)...

24 giorni ago | 0 answers | 0

### 0

answersQuestion

How to get such legend in MATLAB?

As you can see in the attached Figure, only 6 legends are used. (not 8 = number of curves). How to do so?

12 mesi ago | 1 answer | 0

### 1

answerQuestion

How to plot heat map using MATLAB?

I have matrix with dimensions [4096, 181], I want to draw a heatmap for such matrix as in the following figure. How can i do so?...

circa un anno ago | 1 answer | 0

### 1

answerQuestion

Training Time delay Neural Network (tdnn) using Adam optimizer

I have built the following network using tdnn class in deep learning toolbox. Now I wanna train it using 'adam' optimizer. Is it...

oltre un anno ago | 1 answer | 0

### 1

answerHow to "prune" a one hidden layer NN such that the off diagonal elements of the weights, that is, "net.IW{1}" and "net.LW{2}", are zeros?

https://uk.mathworks.com/help/deeplearning/ref/prune.html

oltre un anno ago | 0

Question

How to train "timedelaynet" using "trainNetwork" function in Deep Learning Toolbox?

I have build a Time delay neural network and I wanna avoid use "train" function, and I want to train it using "trainNetwork" fun...

oltre un anno ago | 0 answers | 0

### 0

answersQuestion

Training Time delay neural networks with Parallel and GPU Computing ?

I’m trying to speed up the training of my 'timedelaynet' by using the GPU support that ÷ get from the parallel computing toolb...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

How to run Python script in MATLAB?

I'm trying to run python script using MATLAB The python script code.py is used for Saving Model Weights and Architecture Togeth...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

How to generate wide band OFDM signal using signal aggregation method?

I'm able to genrate OFDM signal with BW=20 MHz as shown in the following figure I wanna build wide band OFDM signal by signal...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

How to control the stopband attenuation of the resample function ?

I'm using resample function to upsample my data. I need to increase the stop band attenuation to improve the Adjacent channel po...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

How can I edit Live editor sheet when I access MATLAB remotely?

I use Chrome Remote Desktop to access my PC, However, when I double click any live editor sheet it appears as a white sheet and ...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

How to build Time delay Neural network using deep learning layers?

I have built this architecture using shallow Time-Delay Neural Networks. where X and Y are the inputs which are time series ve...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

How to achieve the stable training for time delay neural network ?

I have build Time delay neural network The training performance is changed every time I train it. I tried to set the initial we...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

create a variable whose name is changed over iteration number in for loop ?

I have my own function that able to build and train Time delay Neural network [Trained_Model]=Train_RVTDNN(NN, Input, target); ...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

Deleting some layers from trained neural network model

I have trained a big neural network NN which has the structure [20 2 20] as shown in the first figure. After training, I wanna ...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

How can I freeze specific weights of Neural network model?

I need to set some specific weights before training, and keep these weights fixed during training

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

"Relu" activation function and "Adam" optimizer for Time delay neural network

I wanna design Time delay neural network, but I can't find the leaky rectified linear unit (Relu) activation function and "Adam...

oltre 2 anni ago | 0 answers | 0

### 0

answersQuestion

Build Time delay neural network using Deep learning tool box

I wanna build my own Deep neural network which accepts two inputs and estimate two outputs. The input signals of the first layer...

oltre 2 anni ago | 0 answers | 0

### 0

answersQuestion

workaround for handling a large number of variables in the objective function of lsqnonlin

I want to optimize my objective function w0=zeros(m,1) [w,resnorm] = lsqnonlin(@myfun,w0) How can I dynamically define weight...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

Defining my objective function using vector of variables for lsqnonlin

I wanna use lsqnonlin for estimating vector of variables of length 6 function F = myfun() global X % regression matrix of...

oltre 2 anni ago | 0 answers | 0

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answersoptimization with many variables - lsqnonlin

I wanna avoid defining these large variables manually. Is there any simple method for this? x(1) x(2) x(3) ...... x(n)

oltre 2 anni ago | 0

Question

How to generate polynomial matrix in classification problems ?

I have the fllowing samples [1 2] , [2 0] , [1 1], [3 1], [2 3], [3 3] which correspond to labels y : {0, 0, 0, 1, 1, 1} resp...

oltre 2 anni ago | 0 answers | 0

### 0

answersQuestion

The Number of coefficents of Time delay neural network

for the following Time delay neural network clc; clear all; close all; [X,T] = simpleseries_dataset; net1 = timedelaynet(1:2,...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

combining two neural networks (net1 is trained & net2 is untrained) in one bigger network

I have two shallow neural network models net1, net2. I have a trained net1. Then I need to connect a net2 to a net1. Hence I ...

oltre 2 anni ago | 2 answers | 1

### 2

answersQuestion

Set a specific weight for a connection in neural networks

I have already build my neural network. I wanna set a specific weight for the conection from layer i to layer j foe example .....

oltre 2 anni ago | 2 answers | 0

### 2

answersQuestion

How to define a multivariable function (for instance an anonymous function) of a number of variables that varies according to the size of an array variable?

I have two vectors input and output ,where is the number of samples I want to solve this problem as nonlinear least-squares...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

code gernation error using CUDA

I'm trying code generation Using the GPU Coder App as in the folowing link: https://www.mathworks.com/help/gpucoder/gs/gpu-cod...

oltre 2 anni ago | 1 answer | 0

### 1

answerQuestion

what is the problem of the Power Amplifier curve for this WCDMA measurements ?

I used the follwing link to get the data sets of input and output of PA to simluate PA model https://www.mathworks.com/help/si...

circa 3 anni ago | 0 answers | 0