This way, the performance of a channel equalizer of a digital system becomes {HEAD ~ the critical factor} in {TAIL ~ the performance} of the system as a whole 
in
This way , the performance of a channel equalizer of a digital system becomes { HEAD ~ the critical factor } in { TAIL ~ the performance } of the system as a whole
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH