| Summary: | 碩士 === 朝陽科技大學 === 資訊工程系碩士班 === 94 === The main purpose of MANET routing protocols is to provide the capability of searching and maintaining routes such that data can be transmitted between mobile nodes. In the previous routing research, the bandwidth between two mobile nodes is treated as identical no matter what the distance is between these two mobile nodes. In this paper, we consider the fact that the bandwidth between two mobile nodes should be different under different distance to present a high performance and a long lifetime routing protocol. In the high performance routing protocol, we choose the path with the maximal transmission amount to reduce the number of re-finding a new path. In computing the transmission amount, a mobile node relies on the help of GPS to obtain its coordinators to compute its moving vector. With the exchanging the moving vectors and coordinators of two adjacent mobile nodes, the relative distance and moving vector of these two adjacent mobile nodes are obtained. With the predicted link lifetime and the bandwidth, we can predict the transmission amount for the usage of our proposed high performance routing protocol. With regard to our proposed long lifetime routing protocol, we find a path with the predictive remaining power of mobile nodes after data transmission to maximize the overall network lifetime. Because different bandwidth results in the different power consumption for transmitting the same length of data, we use the bandwidth and wanted data transmission amount to compute the transmission time and consumption power. Subsequently, the remaining power of a mobile node after transferring the wanted data amount can be predicted. Accordingly, we can choose the path with the maximal predicted remaining power to maximize the overall network lifetime. In the simulation, we compare our high performance routing protocol with the AODV and LAWS in terms of throughput, the number of re-finding paths (path breakage), and route lifetime. In the part of power consumption, we compare our proposed power-aware routing protocol with the MTPR and MMBCR in terms of overall network lifetime, power consumption per bit and the number of living mobile nodes after a period of time. According to the simulation results, our proposed methods by considering the bandwidth issue can efficiently improve the throughput and extend the overall network lifetime.
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