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From: | Harold Daniel Moreno Urbina |
Subject: | Re: [Discuss-gnuradio] Data loss in transmission over the air |
Date: | Mon, 9 Nov 2015 13:41:47 -0600 |
Hello,Have you tried with just raw data?. I mean, use a file with data you already know, for example in a file, make the proper modulation, send it over the air, receive the data, put it into a file, compare both files.
I can guess that the problem is in the decoder in the receiver part. Study about how to handle errors in digital communications.I found this project on the web, they explain how the receiver send packets to the transmitter to inform about the integrity of the info in the packets received.Saludos.2015-11-09 12:24 GMT-06:00 Israel . <address@hidden>:_______________________________________________Hi,
I’m working on my degree final project and I would like to implement a wireless communications system between two USRPs (N200). One of the main goals is to be able to transmit a file (image, doc, video, …) and to receive it correctly (or, at least, to receive the complete file). My question is if I can do this with GNU Radio. I have tried it for a long time (with File Source, File Sink blocks) and I always lose data in the process. I’ve read quite solutions in the mailing list about other people who had the same problem, but none have worked for me.
I attached a picture of my flowgraph. It is made in a virtualization environment, however, when I work in the real environment (using the USPRs), I keep losing data.
On the other hand, if there is another way to transmit and to receive a file (for example, without using File Source and File Sink), I would also like to know.
I really appreciate any help
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