Analise de desempenho de redes de sensores sem fio / Analysis of wireless sensor networks perfomance
AUTOR(ES)
Andre Gustavo Mignaco
DATA DE PUBLICAÇÃO
2005
RESUMO
Wireless sensor networks have deserved special attention in the last years due to their intrinsic characteristics that become them attractive in various applications, such as in the industrial activities, in the environment monitoring and security, among others. The same characteristics that become the wireless sensor networks attractive make hard the analysis of their performance. Many concepts of measure of capacities of ad hoc networks have been proposed, including the transport capacity and the information efficiency. In this dissertation is introduced a variation of the concept of information efficiency, called aggregated information efficiency, that takes into account the ability of the network in reusing spatially the communication channel. It is presented an analysis of the aggregated information efficiency of a wireless ad hoc network in many scenarios, where are used different models of the wireless network. The results show that the environment where the network is employed has a big importance in its performance, and it can be decisive in the choice of the modulation scheme to be used. Also was observed that to transmit in short distances is better than do it in longer ones in the majority of the cases
ASSUNTO(S)
communication systems telecomunicações wireless communication systems sensor ad hoc networks connectivity ad hoc networks telecommunication transport capacity information efficiency sistemas de comunicação sem fio sistemas de telecomunicação
