The Study and Comparison of Routing Protocols in Pre-Configured Wireless Sensor Networks
| Autor: | Po-Chih Hsu, 許博智 |
|---|---|
| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 In comparison to randomly deployed WSNs (Wireless Sensor Networks), pre-configured WSNs are superior in network performance with multiple aspects, including end-to-end delay time, data delivery ratio (fault-tolerance capability), and energy consumption. Several topologies concerning with pre-configured WSNs, such as grid, hexagonal, or de Bruijn, have been proposed in past studies. However, common flaws among these schemes are that, the amount of neighbors a node could have is so scarce as to affect their fault-tolerance capabilities, especially for cases where networks with faulty nodes. Moreover, a longer network diameter often introduces a considerable transmission delay, which might be problematic while the real time requirement is critical. In this thesis, by deploying sensor nodes as pyramid first and then employing the address allocation scheme of hypercube, we thus propose a PyraNet, a reliable architecture and an energy-efficient routing protocol. Simulation results show that, for large-scale faulty networks, the proposed integrated architecture can achieve about 6%~14% and 35%~61% improvements on data delivery ratio and end-to-end delay time, respectively, compared to existing architectures. In addition, the energy consumption can also be reduced by 27%~61%, and thus effectively prolongs the network lifetime. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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