The field of this invention is in the area of providing solutions on {HEAD ~ information blockage problems} due to {TAIL ~ transmission channel degradation} 
due to
The field of this invention is in the area of providing solutions on { HEAD ~ information blockage problems } due to { TAIL ~ transmission channel degradation }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL