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Tasos Giannoulis

Last seen: 4 months ago |  Active since 2017

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How do I apply the raised cosine filter to an OQPSK signal generated by the OQPSKMOD function using the RCOSFLT function from the Communications Toolbox?
Indeed, this is a limitation of pre-R2017b versions of the Communications System Toolbox. However, from R2017b and on, you can u...

7 years ago | 1

Answered
fuzzy logic in Matlab
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 0

Answered
How to implement Wireless Hart in MATLAB
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 0

Answered
can anyone help to implement ieee802.15.4 in matlab
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 0

Answered
ZigBee (IEEE 802.15.4) and WiFi (IEEE 802.11) coexistence simulation model in MATHLAB / Simulink
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 1

Answered
how to simulate a communication zigbee transmitter and receiver and obtain the dataframe sent or recived?
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 0

Answered
ZIGBEE - Code Simulation and / or Simulink blocks
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library provides sever...

7 years ago | 1

Answered
simulate zigbee with matlab
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 0

Answered
Zigbee model example code
In R2017a, the Communications System Toolbox Library for the ZigBee Protocol is available in MATLAB. This library vertically spa...

7 years ago | 1

| accepted

Answered
OQPSK Modulator Passband block
Hi Asmaa and Walter, Some important notes: 1) Indeed, the passband OQSPK modulator/demodulator has been removed and only a...

8 years ago | 1

Answered
zigbee model in simulink
Hi Asmaa, 1) The OQPSK modulator provides a baseband signal, not a passband signal. The motivation behind baseband processing...

8 years ago | 0

| accepted

Answered
How to create OQPSK modulated signal?
Hi Jared, What you obtain is a modulated OQSPK signal. I assume you are looking for a filtered waveform that gives you a ring...

8 years ago | 1

Answered
build an OQPSK passband model
Hi Owen, Why do you want a passband signal? You can get the baseband oqpsk signal, e.g., with oqpskmod or comm.OQPSKModulator...

8 years ago | 0

Answered
How to perform OQPSK modulation
1) You can use the oqpskmod function or the comm.OQPSKModulator System object (and the corresponding block) from the Communicati...

8 years ago | 0

Answered
OQPSK simulation using matlab
Hi Hana, 1) This function and most tools of the Communications System Toolbox provide a baseband signal, not passband. The mo...

8 years ago | 1

Answered
Find Delay Block in matlab simulink
The first thing you can try is to increase the "Correlation window length" (at the expense of slower simulaton). It needs to be ...

8 years ago | 0

Answered
How to Find Bit Error Rate for an Image?
You are receiving this error because your inputs are 3-dimensional, while BITERR works at most with 2-D data. More important...

8 years ago | 0

Answered
bpsk image modulaton
The problem is that you store the image dimensions in a variable called 'z', but then you overwrite this variable 'z' with the d...

8 years ago | 1

Answered
Connecting Multiple USRPs for Synchronous Operation
Yes you can connect multiple USRP devices in the same host machine and control them with the same MATLAB session. But you will n...

8 years ago | 0

Answered
Why does it take longer to compute the convolution in GF(2) when compared to an equivalent approach using FFT/IFFT?
While it is hard to give a precise answer without looking at the exact code that you are comparing, a possible explanation is th...

8 years ago | 0

Answered
scatterplot
SCATTERPLOT returns a handle to the figure. The child of the figure is the "Axes", whose child is a "Line" (even though the Line...

8 years ago | 1

Answered
Is there a function in the Communications Toolbox for modeling a Multipath Rayleigh Channel?
Yes, you can use the comm.RayleighChannel System object or the RAYLEIGHCHAN function (which constructs a channel.rayleigh object...

8 years ago | 0

Answered
How do I apply a Gaussian pulse shaping filter on a random bit stream using Communications Toolbox?
Alternatively, you can construct an FIR Gaussian filter using dsp.FIRFilter (from DSP System Toolbox) and gaussdesign (from Sign...

8 years ago | 0

Answered
How can I perform root-raised cosine filtering on very large data sets using the RCOSFLT function without memory issues using the Communications Toolbox 3.4 (R2006b)?
You can also use the corresponding System objects: comm.RaisedCosineTransmitFilter, comm.RaisedCosineReceiveFilter. System obj...

8 years ago | 0