Are IOT wireless network protocol right for high throughput point to point communication?

Question

I am trying to build a "professional" 2 way point to point radio system (like this) to control a RC 1/10 scale car (like this ) using UART, the challenge I am currently facing is finding the right radio modules for the application.

Requirements :

1. Frequency 100-950Mhz.

2. Power 27dbm (0.5w) to 30dbm (1w).

3. Modulation is FSK or OFDM or QAM or PSK or **SK etc. (encryption is nice option not a must)

4. Multiple units up to 10 point to point units can be operated at the place with interferance ( i think this is called number of channels )

5. High throughput 10 to 100 packets per second ( packet about 6 bytes)

6. Two way communication (High speed switching between send and receive)

I have been investigating several IOT wireless Modules ( LoraWan , SigFox , M-Bus ) and can't find one that works for my application, since most of them don't allow high throughput and are designed to transmit at approximately 1 packet/second which is enough for remote sensing applications. BLE and WIFI lack in power, range and frequency.

The only option I have found so far is Xbee ( maybe i am still reading about ) and TinyMesh

So my questions are :

1. Is my observation regarding IOT wireless protocols correct?

2. Can some one guide me to the right protocol for low latency communication I require?

   PS: Hopefully this will not be marked as shopping question, I want to understand the protocol or type of network that fits an application :)

EDIT: After Tony's comment about missing specs: cost should be <100$ per Transceiver. Weight and battery power is not an issue as long as it is doesn't consume more than 5W DC (ex: 5v 1A). error correction & detection is a bonus not a requirement. Range is left intentionally Since i mentioned the RF power and frequency.

Answer 1

This chip meets all your requirements: https://www.semtech.com/uploads/documents/sx1238.pdf

Throughput: You would like 600 bytes/sec broadcasts?.. this chip can do 30,000 bytes/sec, so that should be more than enough

Latency: Since it is a raw modem chip, the latency is just the over-the-air modulation period. At 300kbps, that is ~33 micro-seconds per 1 byte (or 0.2ms per packet).

Network: Since it is a raw modem, you can broadcast to infinite chips. Either make your own protocol, or if you are bad at software, I would just use 2 different chips (1 for RX and 1 for TX, on different frequencies). Each RX + TX pair that has its own frequency pair is a private link, so can make hundreds of "private links" if you want to.

Professional chipset: Yes this is a "professional" chipset. Semtech is a very reputable company with very good support. You should email/meet with their FAEs.

If 2.4GHz is ever an option: I would just use an esp32 (which has custom protocols too, not just wifi). It will just work out of the box. Not sure why you need +27dBm, but LR mode has a large link budget.

Answer 2

Actually LoRa works, you can't use LoRaWAN though.

There are even commecially available products, like for example TBS Crossfire runs on the SX1272. The firmware is actually beeing developed for some years now, but basically started at Semtechs Ping-Pong example once, need some tweaking on frequency hopping though to get the duty cycle down.