It is possible to avoid {HEAD ~ duplicate transfers} of {TAIL ~ data}, and in particular to avoid duplicate transfers of data making exclusive use of a comparatively wide bandwidth such as audiovisual data and large volume data packages, to improve the utilization factor of the downlink bandwidth, and to reduce flow congestion and data delays 
of
It is possible to avoid { HEAD ~ duplicate transfers } of { TAIL ~ data } , and in particular to avoid duplicate transfers of data making exclusive use of a comparatively wide bandwidth such as audiovisual data and large volume data packages , to improve the utilization factor of the downlink bandwidth , and to reduce flow congestion and data delays
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH