The performance and {HEAD ~ ease} of management of wireless communications environments is improved by {TAIL ~ a mechanism} that enables access points to perform automatic channel selection 
is improved by
The performance and { HEAD ~ ease } of management of wireless communications environments is improved by { TAIL ~ a mechanism } that enables access points to perform automatic channel selection
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH