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**Content Feed**

Question

to get the proper scatter plot

Hi... How do i map the random symbols after binary to symbol mapping to get the constellation diagram of M-ary QAM correctly ....

1 year ago | 1 answer | 0

### 1

answerQuestion

to get real data for the complex vector

i am trying to implement the qam modulated MIMO-OFDM system when i take the IFFT of the modulated data i am getting the comp...

1 year ago | 0 answers | 0

### 0

answersQuestion

Not able to plot the proper BER plot of OFDM Signal

Dear All... I Am trying to plot a BER plot for OFDM signal. i am not getting a proper graph. any help would be appreciarted....

1 year ago | 0 answers | 0

### 0

answersQuestion

how to compand the complex valued signal

hello .. my input to the comapader is a complex valued signal .it is showing an error ofdm_signal=[-0.999999999999998 - 1.0...

1 year ago | 1 answer | 0

### 1

answerQuestion

to plot BER curve for IDWT

i am not able to plot the proper ber curve .this is my piece of code which is attached for your reference clc; clear all; cl...

1 year ago | 0 answers | 0

### 0

answersQuestion

BER OF M-ary PSK and M-ary QAM

Dear All.... I am trying to write a program for the implementation of MIMO-OFDMby using wavelets transfrom . when i plot t...

1 year ago | 0 answers | 0

### 0

answersQuestion

plot of BER for QPSK modulated DWT and IDWT code

dear all i am working on PSK modulated OFDM system by using DWT and IDWT. i am not able to get the proper graph of the BER of th...

1 year ago | 0 answers | 0

### 0

answersQuestion

peak to average power ratio

how to find the papr of the IDWT modulated OFDM Signal? is there any specfic method to be followed for finding the PAPR of IDWT...

1 year ago | 0 answers | 0

### 0

answersPlot Bit error rate for DWT based OFDM

hi.... i am working on Wavelets OFDM technique did you figure out the error in your code . if so can you share me the correcte...

1 year ago | 0

Question

how to find the BER and PAPR for mimo ofdm systems using matlab code

how to find out the ber,papr and power spectral density of a 2x2 ldpc mimo ofdm ?

2 years ago | 0 answers | 0

### 0

answersQuestion

how to generate parity check matrix of arbitrary size for LDPC

I want to generate an LDPC encoder and decoder of arbitrary size which dependent on the length of the message by using H=dvbs2...

2 years ago | 0 answers | 0

### 0

answersQuestion

encoder and decoder design using ldpc

hi..... i am trying to encode the data by using dvbs2ldpc , i am getting the error message "Inner matrix dimensions must agre...

2 years ago | 1 answer | 0

### 1

answerQuestion

error in qpsk modulation

Hi.... i am trying to implement a mimo-ofdm systems in which i have selected qpsk as a modulation technique. at the transmitter...

2 years ago | 0 answers | 0

### 0

answersQuestion

artificial bee colony algorithm

how to use abc code for minimizing the papr in mimo ofdm systems

2 years ago | 0 answers | 0

### 0

answersQuestion

Artificial Bee Colony Algorithm

Dear Sir..... How to pass my values to the ABC algorithm ??? hoping for the favorable response from your side Regards ...

2 years ago | 0 answers | 0

### 0

answersQuestion

BER of LDPC Encoded QPSK Modulated in AWGN environment

Hi all... i am stuck in plotting the BER of LDPC Encoded QPSK Modulated in AWGN environment.. kindly help me in this regard ...

3 years ago | 0 answers | 0

### 0

answersQuestion

error in matrix concatenation using the loop

i am unable to concatenate to my desirable length. y1 is of dimension 16x99, y2 is of dimension 16x99, y_in and y_qd must be...

3 years ago | 0 answers | 0

### 0

answersQuestion

to plot graph of SNR Vs BER of QPSK based MIMO OFDM system

Hello all...... i am trying to implement the QPSK based MIMO OFDM System and want to plot graph of SNR vs BER of the same . i a...

3 years ago | 2 answers | 0

### 2

answersQuestion

error in subcript must real integers or logicals

hello...... this is my fragment of the code for which i have an error messgae as Subscript indices must either be real positi...

3 years ago | 1 answer | 0

### 1

answerQuestion

to plot binary data for the predefined time interval

how to plot binary input using matlab? x=[1 1 1 0 0 1 0 1 1 0 0 0 ] , frequency is 8Mhz , also i need to plot odd and even samp...

3 years ago | 2 answers | 0

### 2

answersQuestion

Error using LMS algorithm

i am getting the this as the error message "Array formation and parentheses-style indexing with objects of class 'dsp.LMSFilte...

3 years ago | 0 answers | 0

### 0

answersQuestion

ber of qPSK over AWGN noise added

is there any matlab code which can be used to generate the qpsk signal and calculate and plot the BER of QPSK

3 years ago | 0 answers | 0

### 0

answersQuestion

how to generate binary matrix of mxnxp

Hi....... This is the integer matrix which is generated by using integer values A=randi(4,5,5,2)-1 can any one help me in g...

3 years ago | 1 answer | 0

### 1

answerQuestion

bit error rate of ofdm signal

can any one help in finding out the Bit Error Rate of the MIMO OFDM signal of a Pseudo Random(PR) Data.

4 years ago | 0 answers | 0

### 0

answersQuestion

mean square error of mimo ofdm signal

Hi... how to find the mean square error of mimo ofdm signal ? also i need to plot the graph of MSE V/s SNR of the same.

4 years ago | 0 answers | 0

### 0

answersQuestion

mean square error of a multidimensional signal

Hi...... How to Calculate Mean Square Error of a Signal in Multidimensional Matrix(Multidimensional Array).

4 years ago | 1 answer | 0

### 1

answerQuestion

integer to binary conversion

how to convert the random integers into binary form for the multidimensional matrix of size m x n x p .

4 years ago | 1 answer | 0

### 1

answerQuestion

bit error rate and symbol error rate

can anyone tell me how do we compute bit error rate and symbol error rate for a multidimensional array ?

4 years ago | 1 answer | 0

### 1

answerQuestion

to compute power spectral desnity

how do we compute the power spectral density and power of a multidimensional array?

4 years ago | 1 answer | 0

### 1

answerQuestion

computation of fft and ifft

how to compute the fft and ifft of a multidimensional matrix

4 years ago | 1 answer | 0