FIG 2 illustrates a system 200 using a plurality of devices employing {HEAD ~ wireless communication} using {TAIL ~ techniques} such as reflective backscatter to provide and receive information 
using
FIG 2 illustrates a system 200 using a plurality of devices employing { HEAD ~ wireless communication } using { TAIL ~ techniques } such as reflective backscatter to provide and receive information
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH