As the evolution of wireless technologies continues toward realization of mobile
broadband access to content-rich multimedia services, the communication industry is
going through a significant paradigm shift. There is an ever increasing emphasis on
architecture simplicity and cost lowering, as well as leveraging the ongoing success
and innovations in Internet-based protocols and applications. Mobile WiMAX,
which has emerged from computer and Internet ecosystems, is one of the first technologies
leading this change of paradigm.