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Satellite communications for Machine-to-Machine and Internet-of-Things (IOT)

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Satellite communications for Machine-to-Machine and Internet-of-Things (IOT)
24th Aug, 2017 at 10:00am
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Helios Wire have announced $4 million funding to help launch satellites which will provide for low bit rate, burst data communication between Machine-to-Machine (M2M) or between the Internet of Things (IOT).

Using just 30 MHz of S band spectrum they hope to serve up to 5 billion devices. I think the up band (Earth to Space) band will be around 2010 MHz and the downlink (Space to Earth) will be around 2190 MHz.


HELIOS WIRE S band satellite for IOT and M2M services.


Despite being a low earth orbit system, the customers (things?) will not need complex tracking dish antennas but may well use devices similar to car roof omni-directional antennas or perhaps 3 omni-directional antennas to make a small phased array, with small but helpful directional gain.

It is important to understand that using a low frequency like S band means that the earth station antenna has a large collecting area, even if the gain is just 3 dBi.  Compare this with Ka band where the collecting area of a low gain omni antenna is negligible.  This is very important for the downlink.

Read more in the Helios Wire press release: http://helioswire.com/helios-wire-raises-us4-million-in-financing-to-continue-bu...
  

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Nimrod Kapon - Oasis Networks
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Re: Satellite communications for Machine-to-Machine and Internet-of-Things (IOT)
Reply #1 - 26th Aug, 2017 at 7:33am
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Sounds like a feasible solution indeed! Considering the low data rate, omni antenna using S band sounds like a very good solution!
  
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