1. [1] IEEE Standard for Local and Metropolitan Area Networks Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, March 2012.
2. [2] M. Ahmed, G.A. Fadeel, and I.I. Ibrahim, “Multiple poll scheme for improved QoS using IEEE 802.11 PCF,” 9th International Multitopic Conference, IEEE INMIC 2005, Dec. 2005.
3. [3] D. Ping, J. Holliday, and A. Celik, “Dynamic scheduling of PCF traffic in an unstable wireless LAN,” Consumer Communications and Networking Conference, CCNC 2005, pp.445-450, Jan. 2005.
4. [4] T. Kim, C.Y. Kwon, and C.-Y. Yang, “Enhanced polling scheme with IEEE 802.11a WLAN,” Electrical and Computer Engineering, 2004. Canadian Conference, vol.1, pp.217-220, May 2004.
5. [5] S. Senkindu and H.A. Chan, “Enabling end-to-end quality of service in a WLAN-wired network,” IEEE Military Communications Conference, MILCOM 2008, Nov. 2008.