4IEEE 802.11a-1999 (8802-11:1999/Amd 1:2000 (E)) ,Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications--Amendment l:High-speed PhysiealLayerinthe5GHzband.
5IEEE 802.11b- 1999 Supplement to802.11 - 1999,Wireless LAN MAC and PHY specifications:Higher speed Physical Layer (PHY) extensioninthe2.4GHzband.