I've got a research paper to write for my masters, and have chosen to do it on (local) wireless communication protocols - basically comparing them by feature, power consumption, bandwidth, frequency, proprietary vs open, PtP or addressable-network, etc.
I know of the following that are worth including:
* Wifi 802.11b,g,n (5GHz, 2.4GHz)
* Bluetooth, in all its guises.
* Texas Instruments SimpliciTI
Anyone know of others that I should investigate?