I am developing a device that consists of a base station and several wireless sensor nodes. In application there may be up to 30 of these devices in a laboratory with up to 5 sensor nodes communicating with each base station. The sensors will be sampling and sending data at up to 4kHz at 12bits.
Without developing my own wireless protocol at 915MHz (to get away from busy 2.4GHz) it seems that bluetooth offers the best interference handling (using frequency hopping) of the many 2.4ghz wireless protocols available.
Has anyone had any experience with ~100 bluetooth devices or ~30 piconets operating in the same room?
I have thought about using 6LoWPAN at 915MHz but cannot find any information related to how it would handle the interference my application could cause.