Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/6296
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Type: Artigo de Periódico
Issue Date: Jun-2013
Authors: ARAÚJO, Jasmine Priscyla Leite de
RODRIGUES, Josiane do Couto
FRAIHA, Simone da Graça de Castro
GOMES, Hermínio Simões
COSTA, João Crisóstomo Weyl Albuquerque
CAVALCANTE, Gervásio Protásio dos Santos
FRANCÊS, Carlos Renato Lisboa
Title: New strategies for planning and performance evaluation of wireless networks: case studies based on the cross-layer approach
Citation: ARAUJO, Jasmine et al. New strategies for planning and performance evaluation of wireless networks: case studies based on the cross-layer approach. Journal of Microwaves, Optoelectronics and Electromagnetic Applications, São Caetano do Sul, v. 12, n. 1, p. 84-101, jun. 2013. Disponível em <http://www.scielo.br/pdf/jmoea/v12n1/08.pdf>. Acesso em: 05 fev. 2015. <http://dx.doi.org/10.1590/S2179-10742013000100008>.
Abstract: The use of wireless local area networks, called WLANs, as well as the proliferation of the use of multimedia applications have grown rapidly in recent years. Some factors affect the quality of service (QoS) received by the user and interference is one of them. This work presents strategies for planning and performance evaluation through an empirical study of the QoS parameters of a voice over Internet Protocol (VoIP) application in an interference network, as well as the relevance in the design of wireless networks to determine the coverage area of an access point, taking into account several parameters such as power, jitter, packet loss, delay, and PMOS. Another strategy is based on a hybrid approach that considers measuring and Bayesian inference applied to wireless networks, taking into consideration QoS parameters. The models take into account a cross layer vision of networks, correlating aspects of the physical environment, on the signal propagation (power or distance) with aspects of VoIP applications (e.g., jitter and packet loss). Case studies were carried out for two indoor environments and two outdoor environments, one of them displaying main characteristics of the Amazon region (e.g., densely arboreous environments). This last test bed was carried out in a real system because the Government of the State of Pará has a digital inclusion program called NAVEGAPARÁ.
Keywords: Inferência Bayesiana
Qualidade de Serviço - QoS
WLAN
Wi-Fi
ISSN: 2179-1074
Appears in Collections:Artigos Científicos - FCT/ITEC

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