La conferencia "Mobile Security" será impartida por la destacada conferencista Baek-Young Choi, Distinguished Lecturer de IEEE ComSoc. Este evento se llevará a cabo el 21 de octubre de 2025 a las 10:00 a.m. en la Universidad Tecnológica de Panamá (UTP). Durante la charla, se abordarán los principales retos y tendencias en seguridad móvil, un tema crucial en la actualidad debido al incremento en el uso de dispositivos móviles y la creciente necesidad de proteger la información y las comunicaciones. Los asistentes tendrán la oportunidad de conocer estrategias y tecnologías clave para la protección de datos, redes y sistemas móviles. Este evento forma parte del COMSOC Distinguished Lecture Tour 2025, con la participación de expertos de Brasil, Colombia y Panamá, y es organizado por el IEEE Communications Society (ComSoc), Capítulo Panamá. Una oportunidad única para actualizarse en temas de ciberseguridad y fortalecer la resiliencia digital de organizaciones y usuarios. - Conferencista: Baek-Young Choi (Distinguished Lecturer) - Fecha: 21 de octubre de 2025 - Hora: 10:00 AM - Lugar: UTP (Universidad Tecnológica de Panamá) - Evento: COMSOC Distinguished Lecture Tour 2025 - Regiones participantes: Brasil - Colombia - Panamá - Organiza: IEEE Communications Society (ComSoc), Capítulo Panamá Agenda: - Tema: Mobile Security - Conferencista: Baek-Young Choi (Distinguished Lecturer) - Fecha: 21 de octubre de 2025 - Hora: 10:00 AM - Lugar: UTP (Universidad Tecnológica de Panamá) - Evento: COMSOC Distinguished Lecture Tour 2025 - Regiones participantes: Brasil - Colombia - Panamá - Organiza: IEEE Communications Society (ComSoc), Capítulo Panamá Avenida Ricardo J. Alfaro, Campus Central Dr. Víctor Levi Sasso, UTP (Universidad Tecnológica de Panamá), Panama, Panama, Panama

Voiceband modems convert a stream of digital symbols into audible signals and transmit them over the Public Switched Telephone Network (PSTN). The first voiceband modem was developed in 1958 and operated at 110 bits/s. Being subject to international standards developed by the International Union of Telecommunications, Telecommunication Standardization Sector (ITU-T), a body of the United Nations, these modems consistently increased their transmission speeds within the next several decades. Every step in the standards process involved a major development in signal processing and communications, such as various forms of adaptive equalization, echo cancellation, and trellis coded modulation. These contributions approximately doubled the transmission speed every step of the standardization process, starting with 300 b/s in 1962 until about 28.8-33.6 kb/s in 1996. Modem designers invoked Shannon's capacity formula and considering quantization noise occurring at the Analog-to-Digital conversion process in the PSTN Central Office as additive white Gaussian noise, decided that the channel capacity for such modems is about 36 kb/s. Yet, towards the end of 1990s, modems that operated at transmission speeds close to 56 kb/s, known generally as 56K modems appeared. This talk will first give a brief history of voiceband modems, and it will describe how it was possible to beat the Shannon capacity formula with the 56K modems. The underlying modeling process and the related mathematics will be described. A history of the development of the 56K modems will be presented and, looking back several decades, the technological, as well as the economic and social impact of these modems, will be discussed. Co-sponsored by: Benemérita Universidad Autónoma de Puebla Speaker(s): Ender Ayanoglu Room: Auditorio Facultad Ciencias de la Electrónica, Bldg: Edificio FCE2 - 101 , Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 sur; Ciudad Universitaria, Puebla, Puebla, Mexico, 72592, Virtual: https://events.vtools.ieee.org/m/497705