1 Scalable OFDMA Physical Layer in IEEE 802.16 WirelessMAN Advisor: Dr. Kai-Wei Ke Speaker: Chao-Sung yah Date:12/3/2007.
Space Time Codes. 2 Attenuation in Wireless Channels Path loss: Signals attenuate due to distance Shadowing loss : absorption of radio waves by scattering.
Space Time Codes