Thus, it is expected that the size of interference becomes smaller even in {HEAD ~ a frame} subsequent to {TAIL ~ a frame} in which large interference occurs by chance 
subsequent to
Thus , it is expected that the size of interference becomes smaller even in { HEAD ~ a frame } subsequent to { TAIL ~ a frame } in which large interference occurs by chance
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH