Network Protocols and Algorithms ISSN 1943-3581 2014, Vol. 6, No. 4 19 www.macrothink.org/npa RSSI Prediction in WiFi Considering Realistic Heterogeneous Restrictions Alvaro Suarez 1,3 , J. Aurelio Santana 2,3 , Elsa Macías 1,3 , Vicente Mena 2,3 , J. Miguel Canino 2 and Domingo Marrero 1,3 1 Departamento de Ingeniería Telemática, Universidad de Las Palmas de Gran Canaria, Spain { alvaro.suarez, elsa.macias, domingo.marrero}@ulpgc.es 2 Departamento de Señales y Comunicaciones, Universidad de Las Palmas de Gran Canaria, Spain {jose.santana, vicenteefigenio.mena}@ulpgc.es jcanino@ dsc.ulpgc.es 3 Grupo de Arquitectura y Concurrencia, Universidad de Las Palmas de Gran Canaria, Spain Received: August 4, 2014 Accepted: October 2 2014 Published: December 27, 2014 DOI: 10.5296/npa.v6i4.6066 URL: http://dx.doi.org/10.5296/npa.v6i4.6066 Abstract Received Signal Strength Indicator is an indication of power level being received by a wireless device. This parameter for Wireless Fidelity has never been standardized, so any manufacturer implements it measuring as he knows better doing. This is a problem because different scenarios can be found based in several elements like: the particular Wireless Fidelity Network Interface implementation, the driver, the operating system and software monitoring implementation. This makes the utilization of the Received Signal Strength Indicator to implement higher level functions in wireless networks (like roaming management or localization of terminals) be a headache in realistic scenarios. This heterogeneity of devices, drivers… makes that the application of the Received Signal Strength Indicator be not general. In this paper we present the comparison of our new model of Received Signal Strength Indicator prediction in several realistic and heterogeneous scenarios. The experimental results indicate that we obtain in general, better results than the other models.