The question, "What about UWB?" comes up often. The short answer is 802.11n, an evolving IEEE standard in the ISM band. Radio chip vendor Airgo has just announced a MIMO chipset
with speeds up to 240 Mbps and reverse compatibility with 802.11a/b/g.
While this level of performance is cool and all, it still begs the
question, "do hospitals really need this much throughput?" A typical
multi parameter patient monitor needs about 12 kbs, a fraction of
Airgo's new speed. But if you're running on a shared infrastructure,
with bandwidth hogs like wireless PACS and VoIP communications, maybe
more is better.