Uma implementação do protocolo de roteamento Multi-Geo para redes de sensores sem fio usando Quadtrees

• Autor(a) principal: Souza, Vitor Barbosa Carlos de
• Data de Publicação: 2009
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2604
• topic: Redes de sensores sem fio; Protocolos de roteamento; Simulação; Wireless sensor networks; Routing protocol; Simulation; CNPQ::CIENCIAS EXATAS E DA TERRA::CIENCIA DA COMPUTACAO

This work presents the Multi-Q, a modified version of Multi-Geo, which is an adaptive hybrid protocol for Wireless Sensor Network (WSN) whose behavior is based on the network traffic in a given time. It is set to a reactive behavior when the frequency of events is low and it is set to proactive behavior when the frequency of events increases. The main difference between the new protocol and the previous one is the use of different cluster sizes according to the number of nodes, thus, the size of each cluster is inversely proportional to the number of nodes in its area. Other differences are the range limitation of broadcasts inside a cluster and the election of a new clusterhead when the current one fails. The goal of this protocol is to reduce the number of control and data messages in the network, which are the main responsible for the energy consumption. In addition, it preserves the scheme of multi-hop sending that is another effective strategy for the economy in energy consumption of the network. The results presented at the end of this work show that this protocol obtained a reduction of energy consumption when comparing to earlier versions, maintaining the data packets delivery rate. Besides this protocol, this work also generated a tool for WSN simulation through the implementation of a Hades tool extension.