Re: Peaks when increasing the FFT lenght ofdm example

2021-12-21 Thread pv
Hi Johannes, First of all thanks for the quick response and time with my problem. I've made a text file with all specifications of my OFDM example that can be found in the attachments of this mail. Thanks again with your help and anything more just let me know. Best regards, Pedro Viegas

How to plot a constellation without symbol decision

2021-04-16 Thread pv
Hello to all, I'm using the ofdm rx flowgraph from gr digital to receive a ofdm signal generated by the ofdm tx flowgraph. The transmission is made by an USRP Ettus Research N210 in a loopback setup. In the transmitter side, I make a quantization of the generated signal before

Re: Ofdm transceiver with more than 16QAM

2020-11-11 Thread pv
I don know how can I measure the SNR with QAM modulation. There is only a MPSK SNR probe. Can you tell me how to measure SNR with MQAM? Thanks for your help, Pedro Viegas Citando Marcus Müller : Hi. this is a typical question like I'd ask it when talking a student through a test for a

Ofdm transceiver with more than 16QAM

2020-11-10 Thread pv
Hi, I'm trying to make an OFDM transmission of a png file (9.3 kB) with 256QAM with the gnuradio example of OFDM transmitter / receiver. The USRP I'm using is the ettus n210 with the cbx daughter board. With the QPSK and 16QAM modulations it works, but with 64QAM or 256QAM I can´t receive

Re: [Discuss-gnuradio] GSoC 2014 project Wireless Networks In-the-Loop and Channel Sounder

2014-03-21 Thread achuth pv
-gnuradio-bounces+nico.otterbach= student.kit@gnu.org] im Auftrag von achuth pv [achut...@gmail.com] Gesendet: Samstag, 15. März 2014 19:43 An: discuss-gnuradio@gnu.org Cc: Otterbach, Nico (IIIT) Betreff: Re: [Discuss-gnuradio] GSoC 2014 project Wireless Networks In-the-Loop and Channel

Re: [Discuss-gnuradio] GSoC 2014 project Wireless Networks In-the-Loop and Channel Sounder

2014-03-21 Thread achuth pv
On 21 March 2014 13:47, achuth pv achut...@gmail.com wrote: Hi everyone, Following is the link to the my GSOC proposal for the project Wireless Networks in-the-loop. I am looking forward to feedback on the proposal. http://www.ee.iitb.ac.in/student/~achuthpv/GSOC%20Proposal%20WiNeLO.pdf

Re: [Discuss-gnuradio] GSoC 2014 project Wireless Networks In-the-Loop and Channel Sounder

2014-03-15 Thread achuth pv
01:35, achuth pv achut...@gmail.com wrote: Hi everyone, My name is Achuth PV, first year Master of Technology student in Communication and Signal Processing, Indian Institute of Technology, Bombay, India. I am really interested to work in the GSoC project Wireless Networks In-the-Loop

Re: [Discuss-gnuradio] GSoC 2014 project Wireless Networks In-the-Loop and Channel Sounder

2014-03-03 Thread achuth pv
) about this project. Good luck. best, aditya On Mon, Mar 3, 2014 at 3:05 PM, achuth pv achut...@gmail.com wrote: Hi everyone, My name is Achuth PV, first year Master of Technology student in Communication and Signal Processing, Indian Institute of Technology, Bombay, India. I am really