| Summary: | 碩士 === 國立交通大學 === 資訊科學與工程研究所 === 96 === The IEEE 802.16 (WiMAX) standard, supported by several companies like Intel and Nokia, is one of the most popular technologies for broadband wireless accesses. It solves the last-mile problem with traditional wired networks and is expected to be the mainstream of the next-generation communication technology. The related specifications, such as 802.16, 802.16a, 802.16d, 802.16e, etc., are designed for WiMAX networks from 2001. Among these standards, the IEEE 802.16e provides mobility capabilities. It defines many kinds of MAC layer handover mechanisms so that the MSs (Mobile Stations) can retain connections when they perform roaming. Furthermore, at the physical layer, it uses the OFDMA technology to allow more flexible bandwidth allocation.
In this thesis, we develop the IEEE 802.16e protocol modules on NCTUns network simulator. In our design, we add BS (Base Station) and MS nodes, which can conveniently help users to construct IEEE 802.16e network topologies. In addition, our modules support hard handover services at the MAC layer and use the OFDMA technology at the physical layer. Based on our work, researchers can easily use simulations to perform their studies and save much experimental time.
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