The transceiver determines what portion of the spectrum is desired for data transmission and then transmits the data transmission within {HEAD ~ a dynamically selected portion} of {TAIL ~ the available spectrum} 
of
The transceiver determines what portion of the spectrum is desired for data transmission and then transmits the data transmission within { HEAD ~ a dynamically selected portion } of { TAIL ~ the available spectrum }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL