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Energy-latency trade-off for multiuser wireless computation offloading
Muñoz Medina, Olga; Pascual Iserte, Antonio; Vidal Manzano, José; Molina Pena, Marc
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
This paper addresses the trade-off between latency and energy consumption in wireless application offloading in a multiuser set-up. The advantages of carrying out offloading versus executing an application locally at the user terminal depend on multiple parameters. This paper evaluates the impact that the transmission rate and the load of the system have on the quality of service experienced by the users as well as on the energy saving that the users get from doing offloading. Based on this evaluation, the paper proposes a method to select the uplink data rate that minimizes the latency experienced by the user given a target energy saving with respect to the case of no offloading. The result depends on the channels conditions, the system load, the application parameters, and the energy consumption features of the terminal. The method is presented firstly for flat fading channels and secondly for non-flat fading channels.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
Àrees temàtiques de la UPC::Energies::Eficiència energètica
Wireless communication systems
Energy consumption
Application offloading
Multiuser
Femtocloud
Energy consumption
Comunicació sense fil, Sistemes de
Energia -- Consum
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Institute of Electrical and Electronics Engineers (IEEE)
         

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