The fast growth of the Internet has witnessed diverse broad-band access techniques. The wired access represented by ADSL has taken the lead and become a major home-user broadband access mechanism. Although the wireless broadband access has not become a mainstream access technique,its unique advantages has won itself a place in the broadband market, with an ever increasing deployment.The release of IEEE 802.16d standard has been a highly influential event in the wireless broadband access business in 2004. IE...