| With the development of wireless technology and the popularization of portable devices, the respect for new mobile communication network increases steadily. Mobile Ad Hoc Network (MANET) can become a realistic candidate because of its self-organized characteristic. As a dynamic, centric, multi-hop network, it is dependent on neither infrastructure nor particular node in the network. Each node in the network plays the role of a host as well as a router.The research in MANET focuses on several aspects, including routing protocol, address configuration protocol, power control, security management. Routing protocol and address configuration protocol are the main aspects in this research subject. In the aspect of routing protocol, the basis of our work is the widely used AODV protocol. AODV is based on traditional vector method and its algorithm is simple. AODV can avoid the loop routing and route quickly. But it can't provide the entire route information for users, and will generate ineffective route in the case of the unidirectional link. We provided an improved AODV protocol to overcome these disadvantages. Also we tested the two versions of AODV and analyzed the testing data. In the aspect of address configuration protocol, three existing ways of address configuration were compared. DCDP was proved to have the lowest communication overhead and delay by theoretical analysis and simulation. Keeping the advantages of the algorithm, which is simple and conflict-free, solutions to two special scenarios, addresses-leaking and networks combination, were studied. The callback of addresses and the solution to networks combination with low overhead were proposed as an improvement of DCDP.Routing protocol and address configuration protocol discussed in this thesis are both key technologies in mobile Ad Hoc internetworking. Improvement and supplement of these two protocols are very meaningful to the study of both theory and practice of Ad Hoc network. |
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