QoS guaranteed IPTV service over Wireless Broadband network

IEEE 802.16 standard was developed for the delivery of wireless broadband traffic including voice over IP (VoIP) and video or audio streaming, as well as low-data-rate applications, such as Web surfing, and burst traffic over the Internet. In order to support such wide range of traffic on a network, the network must be capable of satisfying various quality of service (QoS) requirements. In this paper, we consider a multi threshold guard channel scheme (MTGC) for multimedia quality of service (QoS) support in wireless broadband network. A service model consisting of four service classes with different handoff-dropping requirements is presented. Appropriate call-admission control and resource reservation schemes are developed to allocate resource adaptively to the IPTV service classes with a stringent delay bound.