Análise de Complexidade de Detectores Heurísticos DS/CDMA Implementados em Plataforma DSP

Taufik Abrão; Rafael de Oliveira Ribeiro; Alex Miyamoto Mussi; Fernando Ciriaco Dias Neto

doi:10.5433/1679-0375.2011v32n2p235

Complexity Analysis of Heuristic DS/CDMA Detectors Implemented in DSP Platform

Authors

Taufik Abrão Universidade Estadual de Londrina
Rafael de Oliveira Ribeiro Universidade Estadual de Londrina
Alex Miyamoto Mussi Universidade Estadual de Londrina
Fernando Ciriaco Dias Neto Faculdade Pitágoras

DOI:

https://doi.org/10.5433/1679-0375.2011v32n2p235

Keywords:

Multiuser detection, DSP, DS/CDMA, Heuristic algorithms, Computational complexity

Abstract

This work investigates issues concerning the computational complexity of multiuser receivers in direct sequence code division multiple access (DS/CDMA) systems based on heuristic techniques and implemented on commercial platform for digital signal processing (DSP) (Texas TMS320C6713). The multiuser detection algorithms which were implemented in baseband are based on the heuristic local search (LS) and simulated annealing (SA) approaches. Figures of merit regarding to the computational complexity increasing, due to the system loading increment (number of active users) are discussed, and a brief methodology for the design/implementation of the baseband receiver using DSP platform is presented as well.

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Author Biographies

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 Associado e Coordenador do programa de mestrado do DEEL/UEL. É (co-)autor de cerca de 25 artigos técnicos publicados em periódicos e 50 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.

Fernando Ciriaco Dias Neto, Faculdade Pitágoras

Docente do Departamento de Engenharia Elétrica

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Published

2011-09-15

How to Cite

Abrão, T., Ribeiro, R. de O., Mussi, A. M., & Dias Neto, F. C. (2011). Complexity Analysis of Heuristic DS/CDMA Detectors Implemented in DSP Platform. Semina: Ciências Exatas E Tecnológicas, 32(2), 235–244. https://doi.org/10.5433/1679-0375.2011v32n2p235

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Issue

Vol. 32 No. 2 (2011)

Section

Original Article

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