NDLI: Ajustando a Pot encia de Transmiss ao em Protocolos MAC para Redes de Sensores Sem Fio

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Ajustando a Pot encia de Transmiss ao em Protocolos MAC para Redes de Sensores Sem Fio

Content Provider	Semantic Scholar
Author	Correia, Luiz Henrique A. Macedo, Daniel F. Santos, Aldri Luiz Dos Loureiro, Antonio Alfredo Ferreira Jos ´ E. Nogueira, Marcos S.
Copyright Year	2006
Abstract	Communication is usually the most energy-consuming event on Wireless Sensor Networks (WSNs). Thus, by reducing the transmission power required to send data packets using transmission power control techniques (TPC), it is possible to significantly reduce energy consumption and extend network lifetime. This paper enhances two existing TPC techniques in WSNs and performs experiments in indoor and outdoor deployments. These experiments evaluate such techniques under different distances among nodes, concurrent transmissions and node mobility. Results show that our enhancements enabled energy savings of up to 57% over fixed transmission power communication, and an improvement of 10% in delivery rates over existing TPC protocols. Resumo. A comunicação é normalmente o evento que mais consome energia nas redes de sensores sem fio (RSSFs). As técnicas de controle da potência de transmissão (CPT) diminuem significativamente o consumo de energia e aumentam o tempo de vida da rede, reduzindo a potência do sinal por quadro transmitido. Este artigo melhora e estende duas técnicas de CPT em RSSFs e apresenta experimentos em ambientes internos e externos. Os experimentos avaliam as melhorias considerando diferentes distâncias entre os nós, transmissões simultâneas e mobilidade. Os resultados mostram que as melhorias introduzidas reduzem o consumo de energia em até 57% em relação ao uso de uma potência fixa de transmissão, e melhoram a taxa de entrega em 10% em relação aos protocolos de CPT existentes.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://homepages.dcc.ufmg.br/~damacedo/publications/correia06sbrc.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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