An Access Point Coordination System for Improved VoIP/WLAN Handover Performance. - Sai Kit Chui; On-Ching Yue (VTC Spring, 2006)

Impact of Handoff Control Messages on VoIP over Wireless LAN System Capacity. - Sai Kit Chui; On-Ching Yue; Wing Cheong Lau (EW, 2008)