@InProceedings{SilvaSennVija:2014:OpMeAp,
               author = "Silva, Marlon da and Senne, Edson Luiz Fran{\c{c}}a and 
                         Vijaykumar, Nandamudi Lankalapalli",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Optimization Methods Applied to Nonlinear Signal Interference 
                         Models",
            booktitle = "Proceedings...",
                 year = "2014",
         organization = "International Conference on Engineering Optimization, 4.",
             keywords = "wireless mesh networks, optimization methods.",
             abstract = "In wireless mesh networks, it is important to establish the 
                         transmission capacity of the links, taking into account the 
                         presence of noise that interferes with the transmission and 
                         consequently degrades the signal sent from one device to another. 
                         This signal degradation is calculated from interference models, 
                         such as SNR (Signal-to-Noise Ratio), SIR (Signal-to-Interference 
                         Ratio) and SINR (Signal-to-Interference-plus-Noise Ratio). In 
                         these models, the link capacity is calculated according to a 
                         decreasing of power levels, depending on the noise or interference 
                         present, which needs to be adjusted to acceptable levels, in order 
                         to avoid committing the signal emission besides not causing health 
                         damage to people close to the device. Different models can be used 
                         to estimate the noise present in an environment. In wireless 
                         transmission, however, it is possible to calculate the noise by 
                         means of nonlinear equations, which are able to estimate the 
                         interference levels present in the network links. From these 
                         elements, it is possible to maximize the capacity of the network 
                         links, using models of nonlinear programming. As these models are 
                         difficult to be solved analytically, this work compares the 
                         results of different nonlinear programming models, based on the 
                         main interference models, with the results obtained by a classical 
                         approach for solving nonlinear models: The simulated annealing 
                         metaheuristic. In this paper, it will analyze the behavior of the 
                         heuristic algorithm, regarding the quality of the solution 
                         obtained and the processing time, as the network size increases.",
  conference-location = "Lisboa",
      conference-year = "2014",
                label = "lattes: 9331509602982993 1 SilvaSennVija:2014:OpMeAp",
             language = "en",
           targetfile = "2014b-Silva-etal.pdf",
        urlaccessdate = "27 abr. 2024"
}