Researchers extended a low-complexity estimation method, TSDCE, to wideband millimeter-wave systems that combine communication and sensing. The new approach, TSDCE-TD, separates angle and delay estimation instead of searching huge multidimensional dictionaries. In simulations it matched or beat compressed-sensing baselines, and enabled single-anchor indoor positioning with errors under 20 centimeters.
Millimeter-wave networks are becoming the backbone of next-generation wireless, and their signals can double as radar. But sensing needs heavy computation that drains power and hardware budgets. By cutting that computational cost while still locating devices within 20 centimeters indoors, this work makes it more practical for one base station to connect phones and track their positions at the same time.
✦ Smarter math could let tomorrow's networks see where you are, using far less computing power.