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