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Live Q&A - FlexLink, a Practical OFDM Datalink, Introduction and Python Demonstrations

Leonard Dieguez - Available in 12 hours and 32 minutes (2024-10-30 10:00 EDT) - DSP Online Conference 2024

Live Q&A - FlexLink, a Practical OFDM Datalink, Introduction and Python Demonstrations
Leonard Dieguez
Live Q&A with Leonard Dieguez for the talk titled FlexLink, a Practical OFDM Datalink, Introduction and Python Demonstrations
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Roman_Kucbel
Score: 0 | 8 hours ago | 1 reply

Thanks. Over the last year I have been investigating ways to create a UAV data link and have done some experiments on the 40.68MHz ISM band using a crude protocol using 4FSK (going for distance on the lower VHF), but the multipath is very to difficult to overcome, so was investigating using a slow data rate OFDM. Even thinking to just move to 915MHZ ISM. Thanks for this and I will look more into flexlink, but not sure I need 6MHz channel. Wanted to avoid the FPGA route and do the DSP on some simpler parts.

Also is Andreas' 3rd edition book already available? I have thoroughly worn out his first edition and want to thank him for his excellent and practical explanations.

LeonardSpeaker
Score: 0 | 8 hours ago | no reply

He should be in the live Q&A session on the 30th. There are probably some interesting things you can do if the data rate is slow. One thought would be replicate the data or "spread" the data across multiple ofdm symbols and bins. This could allow you to lower the overall signal power output as well. This is meant to be a framework starting point for people that wish to design custom datalinks. We are still refining the "spec" and working on receiver sections. Overall someone could tailor the datalink to operate in lower bands and use less data or bandwidth.

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