Energy-efficient selective activation in femtocell networks

Michael Lin, Simone Silvestri, Novella Bartolini, Thomas F. La Porta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Provisioning the capacity of wireless networks is difficult when peak load is significantly higher than average load, for example, in public spaces like airports or train stations. Service providers can use femtocells and small cells to increase local capacity, but deploying enough femtocells to serve peak loads requires a large number of femtocells that will remain idle most of the time, which wastes a significant amount of power. To reduce the energy consumption of over-provisioned femtocell networks, we formulate a femtocell selective activation problem, which we formalize as an integer nonlinear optimization problem. Then we introduce Green Femto, a distributed femtocell selective activation algorithm that deactivates idle femtocells to save power and activates them on-the-fly as the number of users increases. We prove that Green Femto converges to a locally Pareto optimal solution and demonstrate its performance using extensive simulations of an LTE wireless system. Overall, we find that Green Femto requires up to 55% fewer femtocells to serve a given user load, relative to an existing femtocell power-saving procedure, and comes within 15% of a globally optimal solution.

Original languageEnglish (US)
Title of host publicationProceedings - 2015 IEEE 12th International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages361-369
Number of pages9
ISBN (Electronic)9781467391009
DOIs
Publication statusPublished - Dec 28 2015
Event12th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2015 - Dallas, United States
Duration: Oct 19 2015Oct 22 2015

Publication series

NameProceedings - 2015 IEEE 12th International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2015

Other

Other12th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2015
CountryUnited States
CityDallas
Period10/19/1510/22/15

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Computer Networks and Communications
  • Signal Processing

Cite this

Lin, M., Silvestri, S., Bartolini, N., & La Porta, T. F. (2015). Energy-efficient selective activation in femtocell networks. In Proceedings - 2015 IEEE 12th International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2015 (pp. 361-369). [7366951] (Proceedings - 2015 IEEE 12th International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MASS.2015.16