Program for selecting {TAIL ~ an optimum access point} in {HEAD ~ a wireless network} on a common channel 
Program for selecting { TAIL ~ an optimum access point } in { HEAD ~ a wireless network } on a common channel
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH