Proposta de alocação de baterias em redes de sensores sem fio orientada à maximização do tempo de vida / Proposal of battery allocation on wireless sensor networks oriented to lifetime maximization
AUTOR(ES)
Felipe Antonio Moura Miranda
FONTE
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia
DATA DE PUBLICAÇÃO
29/07/2011
RESUMO
The recent advances in Wireless Sensor Networks technologies showed that while computational limitations are transient issues, energy limitations are much more complicated problems. In this work, a strategy aiming the lifetime increment of Wireless Sensor Networks is proposed. The main motivation of this work is that energy limitation is a serious inherent problem to Wireless Sensor Networks, caused by the fact that their motes generally use small batteries, consequently, with a small amount of energy. Besides that, changing batteries after all motes deployment is such a hard task, resulting in short lifetimes and energy waste. The strategy proposed in this work is based on the energy allocation guided by the estimation of each node s consumption, no matter what is the network topology. The validation of this strategy was made by mean of simulations using motes made with models of many commercial devices used in real networks. To evaluate the strategy effectiveness, it was tested on different networks topologies, achieving network lifetime increment and energy waste reduction on all scenarios
ASSUNTO(S)
sistema de comunicação sem fio baterias energia detectores redes de sensores wireless communication system battery energy sensors sensor networks
