I've seen a lot of wireless technologies come and it was always a matter of interest that the arrival of something new seemed inevitable.
It was also interesting thatfor the most partthe advocates of the new technologies tended to keep their features and comparisons fairly narrowly focused on range and throughput.
If you pressed them, they'd talk about spectral efficiency as well, particularly as spectrum became increasingly scarce.
But there are other figures of merit for comparing wireless technologies, including power and power efficiency.
And, not surprisingly, it turns out that each technology has a scenario our use case where it outshines all the rest. This "sweet spot" can be expressed in terms of the old reliables: range and throughput.
Bluetooth, for example, is best for applications that need 1 Mb/s throughput or thereabouts and a range that does not exceed 10 feet. UWB is at the other end with a sweet spot of 200 Mb/s at 10 feet.
For more about this and other thought provoking observations, I suggest you read an article by TI's Yoram Solomon that we recently posted. You can find it at:
More information is available at All Connected: A multi-protocol, multi-radio architecture.