Performance Research Of IEEE802.16d PMP Net Configuration Media Access Control Layer

Wideband wireless access technology developed very fast and had many types. In this paper, another type of wideband wireless access mode, IEEE802.16d, was introduced. It mainly applied in area of metropolis and can be transmitted voices, images,videos, data and so on, it also is one of access types of "the last one mile" and has many advantages.IEEE802.16d specifies radio interface between base station(BS)and subscriber station(SS). 802.16 MAC protocol is designed to support point-to-multipoint architecture and QoS mechanisms taking advantage of request/grant MAC scheduling mechanisms. But 802.16d only defines the signaling mechanism for information exchange between BS and SS and describes the systematic function in detailed. In order to provide more flexibility to manufacturer, the protocol doesn't give any specific algorithm about key mechanisms such as QoS mechanisms and scheduling mechanism. This paper IEEE802.16d MAC layer protocol for a more detailed description and analysis of major research on the PMP network medium access control performance, included protocol model ,construction and transfers of MAC PDU, MAC layer elementary characteristic. The thesis simulates the IEEE802.16d MAC protocol, designs and implements the software architecture, QoS architecture, and MAC scheduling architecture and so on. The MAC scheduling architecture can schedule uplink traffic of UGS and rtPS to fulfill QoS requirements as well as make best use of bandwidth.