Which ESP: low power (max 50mW), 4Mbps, short distance

[pppp12]

For one of our project we need to wirelessly transmit sensor data (continuous stream 4Mbps) for a distance of 2 meters (omnidirectional). The sensor + transmitter are going to be powered by small PV cell therefore the power consumption on the transmitting side is limited to max 50mW. Can you recommend the possible solution? Is it possible with ESP? Your suggestions are highly appreciated.

[JoeSensoric]

No way, even the small C3 needs at least 276 mA when transmitting over WiFi. I expect even a specialized hardware (e.g. a camera) needs more power for a 4Mbps stream.

[Bryght-Richard]

Seems difficult.

BLE will only go 2mbps, and there is much overhead too.

Depending on source signal, could try buffering with a ULP core and bulk transmitting once the buffer is full enough.

Do you control both ends? Do both ends of the link need to run on battery? If one end is a newer(802.11ax+) access point with TWT, perhaps buffering plus TWT would work. This way station can connect to access point and immediately go to sleep while ULP core gathers data. Once ULP has gathered enough data, wake application core and send as quickly as possible, then go back to sleep while ULP core gathers data...

[MicroController]

(continuous stream 4Mbps) for a distance of 2 meters (omnidirectional) ... max 50mW.

Infrared maybe.