It is possible to avoid duplicate transfers of {TAIL ~ data}, and in particular to avoid duplicate transfers of data making {HEAD ~ 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 
It is possible to avoid duplicate transfers of { TAIL ~ data } , and in particular to avoid duplicate transfers of data making { HEAD ~ 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 OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD 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