I'm playing with nRF24L01+ now, it's said to be 2Mbps but that's air bit-rate without overheads, retries,... I actually achieve 140Kbps at 10m of usable payload..
Maybe by multiplexing 2 of 4 devices on different channels ?
It also exist amplified models that are said to have 1000m range, so it could do it at 100m.