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From my point of view, since the communication is between computers even a single bit error renders the packet useless. There are some cases like some video and...
This is exactly why the 802.11 standard defines a requirement for PER and not BER. For packetized transmission it is more suitable to define the PER and not the...

Re: Spectrum Sensing HW.

Reply posted 5 years ago (04/14/2017)
You can either use the AD9361 evaluation from Analog Devices, covers frequencies from a few hundreds MHz to 6GHz, with one of the suggested FPGA boards or the LMS6002D...

Re: Correct method to add AWGN

Reply posted 5 years ago (04/11/2017)
Option A.The noise is added at the receiver and should be added according to your sampling bandwidth regardless of signal power. For Eb/N0 you should normalize the...
I think that zigbee is designed for low data rate, low power sensors so I do not see it integrated into a cellphone.

Re: ofdm in GNURADIO

Reply posted 5 years ago (04/07/2017)
I do not know the GNU radio OFDM implementation but from the few parameters you have listed the following calculation / logic may give you an answer.FFT size is...

Re: Noise removing

Reply posted 5 years ago (04/05/2017)
For the great answers you already got I just wanted to add a another small issue.I also worked a little with the SDR dongles and one problem I tried avoiding is...
Your question intrigued me so I just googled it:http://www.ti.com/general/docs/datasheetdiagram.ts...This example from TI shows that the front ends are different....

Re: CW Burst Signal Detection

Reply posted 5 years ago (11/07/2016)
Hi Tarik,A target SNR of 7dB is a moderate to high SNR in my opinion. For this SNR I think it can be safe enough to let the DPLL run with predefined limits on the...

Re: CW Burst Signal Detection

Reply posted 5 years ago (11/07/2016)
Hi,First, this is an interesting question.Before suggesting another option I think you left out an important system parameter which is your target SNR. This depends...

Re: convolution coding for FEC

Reply posted 5 years ago (10/14/2016)
Hi Sharan123,First I want to say that I understand your frustration in understanding the decoding process. Few references start with a more heuristic explanation....

Re: Estimating Frequency in PLL from phase

Reply posted 5 years ago (07/20/2016)
The exact relationship between the loop filter output and the frequency depends on several factors. For example the over sampling rate and how do you represent...

Re: Estimating Frequency in PLL from phase

Reply posted 5 years ago (07/20/2016)
The basic structure of a second order loop is a first order loop filter followed by the VCO which includes an integrator. The frequency estimation is simply the...

Re: Estimating Frequency in PLL from phase

Reply posted 5 years ago (07/20/2016)
Actually, if you have a second order loop PLL, the frequency estimation is just the value in the loop filter register. The "accuracy" of this "estimate" will depend...
Hi Rob,Regarding your problem, I was wondering, are you comparing apples to apples? If you modulate a 4 bit value using 16 ORTHOGONAL codes, the compare should...

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