Análisis de métricas de calidad de servicio para la configuración del protocolo CSMA/CA en redes de sensores inalámbricas de área corporal

Diana Patricia Tobón Vallejo; Natalia Gaviria Gómez

Authors

Diana Patricia Tobón Vallejo University of Antioquia
Natalia Gaviria Gómez University of Antioquia

Abstract

The guarantee of Quality of Service (QoS) is a fundamental aspect in the implementation of Wireless Sensor Networks, particularly in Wireless Body Area Networks (WBAN). This paper analyzes several QoS metrics in order to guarantee the performance of a WBAN used to monitor patients. Through the definition of an experimental design and using Analysis of Variance (ANOVA) to analyze the results, we find the configuration of the Carrier Sense Multiple Access with Collision Avoidance protocol (CSMA/ CA) that optimizes the performance in terms of energy consumption, packet loss and delay. We focused on the following parameters: traffic load, macMinBE (BE) and macSuperFrameOrder (SO).The experimental design was implemented both in a simulation environment (OMNeT++) and in a real hardware platform. The result analysis showed that the performance of the network is affected by the three variables, and allowed us to find the optimal values.

Author Biographies

Diana Patricia Tobón Vallejo, University of Antioquia

Magíster en Ingeniería, Universidad de Antioquia (Colombia). Profesora ocasional
de la Universidad de Antioquia, Departamento de Electrónica, Facultad de
Ingeniería.
Natalia Gaviria Gómez, University of Antioquia

Ph.D de la Universidad de Arizona-Tucson, Directora de Investigación y Posgrados, Facultad de Ingeniería. Universidad de Antioquia.