Subsequent sequences will therefore be determinable with {HEAD ~ knowledge} of {TAIL ~ the original, non precoded, transmission sequence} 
Subsequent sequences will therefore be determinable with { HEAD ~ knowledge } of { TAIL ~ the original , non precoded , transmission sequence }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL