Publicado:

2024-04-02

Número:

Vol. 18 Núm. 1 (2024)

Sección:

Visión Investigadora

Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment

Comparación del rendimiento de la calidad de enlace GSM: OpenBTS versus equipo de prueba

Autores/as

  • Edith Paola Estupiñán-Cuesta Universidad Militar Nueva Granada
  • Juan Carlos Martínez-Quintero Universidad Militar Nueva Granada
  • José de Jesús Rugeles Universidad Militar Nueva Granada

Palabras clave:

Frequency error, GSM, OpenBTS, Phase Error, Intrusion detection (en).

Palabras clave:

Detección de intrusos, Error de frecuencia, Error de Fase, GSM, OpenBTS (es).

Resumen (en)

The implementation of wireless communication systems such as GSM on SDR (Software Defined Radio) platforms is increasingly common not only in order to reduce costs in the deployment of a network, but also to find and exploit vulnerabilities in the security of systems with this technology. The development of BTS (Base Transceiver Station) in GSM based on free software and SDR as OpenBTS has allowed different investigations such as IMSI catcher implementations and man-in-the-middle attacks by impersonating a real cell. This Research show and analyze the physical parameters for a channel in the GSM900 band with OpenBTS on a USRP N210 compared to a vector signal generator. There was defined 5 scenarios to evaluate the quality of the GSM burst with different configurations. The experiment analyzes the frequency error, phase error and power vs. time for the downlink channel. Results shown that it is possible to detect a fake cell implemented with OpenBTS by analyzing the behavior of its parameters in relation to the specialized equipment or the actual cell. The measured parameters are also a reference for the normal operation of OpenBTS over USRP N210. These parameters can be used for the detection of false BTS or identification of errors in the deployment of networks with this technology.

Resumen (es)

La implementación de sistemas de comunicación inalámbrica como GSM en plataformas SDR (Software Defined Radio) es cada vez más común no solo con el fin de reducir costos en el despliegue de una red, sino también para encontrar y explotar vulnerabilidades en la seguridad de sistemas con esta tecnología. El desarrollo de BTS (Base Transceiver Station) en GSM basado en software libre y SDR como OpenBTS ha permitido diferentes investigaciones como implementaciones de catcher IMSI y ataques man-in-the-middle al hacerse pasar por una celda real. Esta investigación realiza un muestro y análisis de los parámetros físicos de un canal en la banda GSM900 con OpenBTS en un USRP N210 en comparación con un generador de señales vectoriales. Fueron propuestos 5 escenarios para evaluar la calidad de la ráfaga GSM con diferentes configuraciones. El experimento analiza el error de frecuencia, el error de fase y la potencia frente al tiempo para el canal de enlace descendente. Los resultados mostraron que es posible detectar una celda falsa implementada con OpenBTS analizando el comportamiento de sus parámetros en relación con el equipo especializado o la celda real. Los parámetros medidos también son una referencia para el funcionamiento normal de OpenBTS sobre USRP N210. Estos parámetros se pueden utilizar para la detección de falsas BTS o identificación de errores en el despliegue de redes con esta tecnología.

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Cómo citar

APA

Estupiñán-Cuesta, E. P., Martínez-Quintero, J. C., y Rugeles, J. de J. (2024). Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment. Visión electrónica, 18(1). https://revistas.udistrital.edu.co/index.php/visele/article/view/22416

ACM

[1]
Estupiñán-Cuesta, E.P. et al. 2024. Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment. Visión electrónica. 18, 1 (abr. 2024).

ACS

(1)
Estupiñán-Cuesta, E. P.; Martínez-Quintero, J. C.; Rugeles, J. de J. Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment. Vis. Electron. 2024, 18.

ABNT

ESTUPIÑÁN-CUESTA, Edith Paola; MARTÍNEZ-QUINTERO, Juan Carlos; RUGELES, José de Jesús. Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment. Visión electrónica, [S. l.], v. 18, n. 1, 2024. Disponível em: https://revistas.udistrital.edu.co/index.php/visele/article/view/22416. Acesso em: 19 jul. 2024.

Chicago

Estupiñán-Cuesta, Edith Paola, Juan Carlos Martínez-Quintero, y José de Jesús Rugeles. 2024. «Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment». Visión electrónica 18 (1). https://revistas.udistrital.edu.co/index.php/visele/article/view/22416.

Harvard

Estupiñán-Cuesta, E. P., Martínez-Quintero, J. C. y Rugeles, J. de J. (2024) «Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment», Visión electrónica, 18(1). Disponible en: https://revistas.udistrital.edu.co/index.php/visele/article/view/22416 (Accedido: 19 julio 2024).

IEEE

[1]
E. P. Estupiñán-Cuesta, J. C. Martínez-Quintero, y J. de J. Rugeles, «Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment», Vis. Electron., vol. 18, n.º 1, abr. 2024.

MLA

Estupiñán-Cuesta, Edith Paola, et al. «Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment». Visión electrónica, vol. 18, n.º 1, abril de 2024, https://revistas.udistrital.edu.co/index.php/visele/article/view/22416.

Turabian

Estupiñán-Cuesta, Edith Paola, Juan Carlos Martínez-Quintero, y José de Jesús Rugeles. «Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment». Visión electrónica 18, no. 1 (abril 2, 2024). Accedido julio 19, 2024. https://revistas.udistrital.edu.co/index.php/visele/article/view/22416.

Vancouver

1.
Estupiñán-Cuesta EP, Martínez-Quintero JC, Rugeles J de J. Comparison of GSM Link Quality Performance: OpenBTS versus Test Equipment. Vis. Electron. [Internet]. 2 de abril de 2024 [citado 19 de julio de 2024];18(1). Disponible en: https://revistas.udistrital.edu.co/index.php/visele/article/view/22416

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