Alocação de Potência Baseada na Margem de Certeza Equivalente Aplicável a Sistemas sem Fio Limitados por Interferência

Tadeu Junior Gross; Taufik Abrão; Paul Jean Etiennn Jeszensky

doi:10.5433/1679-0375.2015v36n2p47

Power Allocation based on Certain Equivalent Margin Applicable to Wireless Communication Systems Limited by Interference

Authors

Tadeu Junior Gross Perito Criminal Oficial da Polícia Científica do Mato Grosso (POLITEC-MT), área de Processamento Forense de Sinais Analógicos e Digitais de Áudio, Imagem e Vídeo
Taufik Abrão Universidade Estadual de Londrina
Paul Jean Etiennn Jeszensky Escola Politécnica da USP

DOI:

https://doi.org/10.5433/1679-0375.2015v36n2p47

Keywords:

DS-CDMA, Power Control Algorithm, Geometric Programming, Perron-Frobenius Eigenvalue Theory

Abstract

This paper analyzes the method of power allocation for wireless communication networks, limited by multiple access interference under fading Rayleigh channels. The method takes into account the statistical variation of the desired and interfering signals power and optimally and dynamically allocates the power resources in the system. This allocation is made being taken into account the restrictions imposed by the outage probability for each receiver/transmitter pair. Based on the Perron-Frobenius eigenvalue and geometric programming (GP) theories, some interesting results were found for the optimization problem analyzed. A GP is a special type of optimization problem that can be transformed in a non-linear convex optimization problem simply by the change of variables, and then to be globally solved. Also, an iterative method for fast convergence was shown to find the optimally power allocation seeking to minimize the outage probability in the communication.

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Author Biographies

Tadeu Junior Gross, Perito Criminal Oficial da Polícia Científica do Mato Grosso (POLITEC-MT), área de Processamento Forense de Sinais Analógicos e Digitais de Áudio, Imagem e Vídeo

Perito Criminal Oficial da Polícia Científica do Mato Grosso (POLITEC-MT), área de Processamento Forense de Sinais Analógicos e Digitais de Áudio, Imagem e Vídeo.

Taufik Abrão, Universidade Estadual de Londrina

Taufik Abrão é graduado, Mestre e Doutor em Engenharia Elétrica em 1992, 1996 e 2001, respectivamente, pela Escola Politécnica da Universidade de São Paulo. Desde 1997 é docente do Departamento de Engenharia Elétrica da Universidade Estadual de Londrina (DEEL-UEL), PR Atualmente é professor adjunto AD-C e Coordenador do programa de mestrado do DEEL/UEL. É (co-)autor de cerca de 20 artigos técnicos publicados em periódicos e 30 artigos publicados em anais de congresso. Suas áreas de interesse incluem comunicações sem fio, projeto de seqüências de códigos para uso em sistemas DS/CDMA, detecção multiusuário e estimação de parâmetros em DS/CDMA, técnicas heurísticas aplicáveis a problemas de otimização em sistemas de mútiplo acesso, sistemas UWB e MC-CDMA.

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Published

2015-10-17

How to Cite

Gross, T. J., Abrão, T., & Jeszensky, P. J. E. (2015). Power Allocation based on Certain Equivalent Margin Applicable to Wireless Communication Systems Limited by Interference. Semina: Ciências Exatas E Tecnológicas, 36(2), 47–62. https://doi.org/10.5433/1679-0375.2015v36n2p47

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Issue

Vol. 36 No. 2 (2015)

Section

Original Article

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