Professor Alfonso Prieto Guerrero obtained a degree in Mechanical-Electrical Engineering with a major in Electronics from the Faculty of Engineering of the Universidad Nacional Autónoma de México (UNAM) in 1993. Subsequently, in 1995, he obtained a DEA (Diplôme d'Etudes Approfondies) in Signal, Image, and Communication Processing at Télécom Paris, Site Toulouse, France. He completed a Ph.D. in Science at the Institut National Polytechnique de Toulouse, France, on the compression of biomedical signals, and he obtained his degree in November 1999.

Since January 2000, he has been a professor at the Iztapalapa Campus of the UAM where he has taught undergraduate and graduate courses related to communications and signal processing. He currently belongs to the Area of Networks and Telecommunications.

His research interests are in the field of signal processing and its applications. He has worked on signal compression, speaker recognition, and applications in communications. He is currently collaborating on projects related to nuclear reactor signals and cognitive radio networks.

In 2007 he stayed at the TESA laboratory (Télécommunications Spatiales et Aéronautiques) where he collaborated in the regional OURSES project on biomedical applications via satellite.

He has been a constant reviewer of conferences and indexed journals related to Biomedical Engineering, Telecommunications, Computing, and Nuclear Engineering. He has participated in evaluations of grants and research projects of CONACyT and PRODEP-SEP.