D-BLAST MIMO Perfomance Analysis over SDR-USRP

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Published: Jan 1, 2022
DOI: https://doi.org/10.17163/ings.n27.2022.10
Keywords:
Alamouti, D-BLAST, MIMO, SDR, USRP

Main Article Content

Freddy Cárdenas
https://orcid.org/0000-0002-1012-3632
Jairo Otáñez
https://orcid.org/0000-0002-6286-1928
Juan Inga
http://orcid.org/0000-0003-2580-9677
Esteban Inga
https://orcid.org/0000-0002-0837-0642
Andrés Ortega
https://orcid.org/0000-0002-9141-2048

Abstract

This paper describes the implementation of technique based on D–BLAST spatial multiplexing over Software Defined Radio (SDR) equipment; specifically, using Universal Software Peripheral Radio (USRP) Ettus Research x310; with the aim of solve the problem of spatial diversity that the MIMO Alamouti scheme has, since it is not possible to increase the number of antennas of the transmitter with respect to the receiver. The simulation scenario was in an indoor environment using graphical programming tools with the Labview Communications Software, achieving a more robust coding design based on the nonlinearity of matrix equations, in this way, the effects of interference were mitigating through the redundancy of information due to the increase of the antennas at the transmitter. The experimental results evaluated were bit error rate (BER) and symbol error rate (SER) to determine the effectiveness of spatial diversity. The gain achieved was around 10dB and 7dB in MIMO 2×2 and MIMO 3×2 respectively, using the symmetric D–BLAST technique.

Article Details

Issue
No. 27 (2022): january-june
Section
Telecommunications

 

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Author Biographies

Freddy Cárdenas

Los estudios de la secundaria se realizaron en el Colegio Técnico Ricaurte de la ciudad de Cuenca-Ecuador. Él es graduado en la Universidad Politécnica Salesiana en la carrera de ingeniería Electrónica con mención en Telecomunicaciones.

Jairo Otáñez

El finalizo sus estudios de la secundaria en el Instituto Carlos Cisneros de la ciudad de Riobamba. Él es graduado de la Universidad Politécnica Salesiana en la carrera de ingeniería Electrónica mención en Telecomunicaciones.

Juan Inga

He is graduated from the Universidad Politécnica Salesiana receive the Mg.T. degree in Telecommunications Management Program. He is researcher at the Centre Research. He is member of the Telecommunications Research Group (GITEL). He is currently working toward his Ph.D degree in Engineering with the Universidad Pontificia Bolivariana – Medellín. His research interests include wireless networks, compressed sensing, home area network, smart grid, channel modeling. He is a student member of the IEEE

Esteban Inga

Recibe su grado de Ingeniero Electrónico, por la Universidad Politécnica Salesiana en 2001, Cuenca; recibió su Maestría en Educación y Desarrollo Social de la Universidad Tecnológica Equinoccial en 2008, Quito - Ecuador. En 2017 recibió su Maestría en Ingeniería en la Universidad Pontificia Bolivariana, Medellín, Colombia. En 2018 obtuvo su doctorado de la Universidad Pontificia Bolivariana de Medellíın - Colombia con mención honorífica Magna Cum Laude que se otorga cuando la tesis excede las expectativas de lo que se propuso en el proyecto, por concepto unánime de los jurados, y se demuestra la producción científica. Es el Coordinador del Grupo de Investigación GIREI, es Coordinador del Programa de Maestría en Electricidad. Sus intereses de investigación son las redes de comunicaciones, la infraestructura de medición avanzada, la red eléctrica inteligente, las redes inalámbricas heterogéneas, la planificación de redes inalámbricas y ciudades inteligentes. Es profesor de Posgrados de la Universidad Politécnica Salesiana, Quito, Ecuador.

Andrés Ortega

Se gradúa de la Universidad Politécnica Salesiana como Ingeniero Electrónico en 2010, Cuenca, posteriormente obtiene su grado de Magíster del Programa de Gestión de las Telecomunicaciones en 2013. En 2018 obtuvo su doctorado de la Universita degli Studi di Ferrera en Ferrara Italia. Es investigador de la Universidad Tecnológica ECOTEC en Guayaquil Ecuador y miembro del Centro de Estudios y Desarrollo Sostenible (CEDS) adscrito a la ECOTEC.

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