Analysis of Link Dynamics in Mobile Ad Hoc Networks
| Autor: | Cheng-lin Tsao, 曹正霖 |
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| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 Advances in wireless technology and mobile computing on portable devices, along with the demand for greater user mobility, have provided a major impetus toward the development of an emerging class of self-organizing, rapidly deployable, and highly mobility adaptable network architectures referred as Mobile Ad hoc NETworks (MANETs). When designing and evaluating routing protocols of MANETs, different mobility models form networks with different characteristics of network topology dynamics, which further influence the performance of MANET routing protocols. The performance influences include the adaptability to network topology dynamics and energy efficiency in a network with limited resources. Among all metrics of a mobility model, link dynamics is the most significant network connectivity graph metric. The most commonly used mobility model in the MANET research community is the random waypoint mobility model. In this thesis, we provide an analytical study of the link dynamics in a MANET in which mobile nodes moves according to random waypoint mobility model. The analysis includes the mobility behaviors of a single node and the distribution of link duration between two nodes. We provide in-depth investigation such as the non-uniformity of random waypoint mobility model, the impact of nodal speed and transmission range on link duration, and how parameters of random waypoint mobility model influence link dynamics. Our analytical study about the link dynamics gives us an insight into the network topology dynamics of MANET, and it provides us the basis of further analysis of MANET such as routing protocol performance and network connectivity. Simulation results verify our analysis of the link dynamics of MANET. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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