Design And Implementation Of CS Classifier And ARQ Mechanism In MAC Layer In WMAN

The achievements on mobile devices and wireless communication technology lead to the boom of wireless networks. WiMAX (IEEE 802.16 standard) is the hottest wireless networking technologies, which is expected to solve the last-mile problem instead of classic wired connections. The topic of this thesis is based on the project "Multimedia Real-time System of Broad Band WMAN ". The final aim of this project is to implement WiMAX system and transmit the audio and video on this system. My work in the project is focus on part of protocol software design and implements.In this thesis, an overall analysis of WiMAX technology and WiMAX architecture design is given first, and following is the main part of the thesis, detailed description of my work, based on the design and implementation of the whole project. The main achievements of this thesis are listed as following:1. Parse the key mechanisms of the IEEE802.16 MAC.2. The implementation of IEEE 802.16 MAC protocols on picoChip development platform. We introduce the DVK102 embedded platform. The architecture, module partition, module interface and data structure to implement the IEEE 802.16 MAC on that platform are given in the thesis.3. Design and implementation of CS sub-layer classifier in MAC layer of IEEE 802.16 networks. We introduce a method of CS sub-layer classifier. We introduce the architecture, module partition, and implementation. The proposed classifier method is critical for the future research work on IEEE 802.16 wireless access systems.4. Design and implementation of ARQ function in MAC layer of IEEE802.16 networks. We introduce a method of ARQ mechanism for the 802.16 network system. We introduce the design idea and implement mode. The proposed ARQ method has been applied in the IEEE 802.16 broadband wireless access systems.5. Test and integration of 802.16 CS sub-layer; part of test results and related analysis are also provided.