Autor: |
Κατσικούλη, Παναγιώτα |
Rok vydání: |
2011 |
Předmět: |
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Druh dokumentu: |
Diplomová práce |
Popis: |
Cellular automata (CA) are an idealization of a physical system where space and time are discrete and the physical quantities take only a finite set of values. Cellular automata consist of a regular grid of identical cells-nodes. Each node is characterized by a non arbitrary value selected by a specific set of appropriate integers. The values of the nodes change over time according to predefined localized rules. The overall structure can be viewed as a parallel processing device. This simple structure when iterated several times produces complex patterns displaying the potential to simulate different sophisticated natural phenomena. We use cellular automata for simulating a topology control algorithm in Wireless Sensor Networks (WSNs). WSNs are composed of a large number of distributed sensor nodes operating on batteries; the objective of the topology control problem in WSNs is to select an appropriate subset of nodes able to monitor a region at a minimum energy consumption cost thus extending the network lifetime. |
Databáze: |
Networked Digital Library of Theses & Dissertations |
Externí odkaz: |
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