1. Goralski, W.: ‘ADSL and DSL technologies’, 2nd edn(Osborne McGraw-Hill 2002)
2. IEEE STD 802.11a-1999: ‘Part11-wireless LAN medium access control (MAC) and physical layer (PHY) specifications: high-speed physical layer in the 5 GHz band’
3. IEEE STD 802.11g-2003: ‘Part11-wireless LAN medium access control (MAC) and physical layer (PHY) specifications: further higher data rate extension in the 2.4 GHz band’