Advertisement

Improving QoS of Femtocells in Multi-operator Environments

  • Franco Mazzenga
  • Marco Petracca
  • Remo Pomposini
  • Francesco Vatalaro
Chapter

Abstract

The growth of self-installed femtocells in residential and office environments triggers harmful femto-to-femto interference levels. In order to overcome this problem, we suggested that operators mutually share their licensed spectrum allowing femtocells to exploit also the frequency resources of other operators. By assuming mutual arrangements among operators, we proposed algorithms enabling femtocells to dynamically select the best operating channel among those available from every operator just based on local interference measurements. In such a way the interference between femtocells belonging to the same operator can be considerably reduced. In this paper we describe and evaluate performance of the proposed dynamic frequency selection algorithms in terms of outage probability and average throughput per femtocell. In our analysis we examine various scenarios in which we consider different number of available frequency channels. Results show that in a multi-operator environments the proposed approach allows to improve QoS in femtocell networks.

Keywords

Femto-cell Quality of service Spectrum sharing 

References

  1. 1.
    Calin, D., Clazaussen, H., Uzunalioglu, H.: On femto deployment architectures and macrocell offloading benefits in joint macro-femto deployments. IEEE Commun. Mag. 48(1), 26–32 (2010)CrossRefGoogle Scholar
  2. 2.
    Chandrasekhar, V., Andrews, J., Gatherer, A.: Femtocell networks: a survey. IEEE Commun. Mag. 46(9), 59–67 (2008)CrossRefGoogle Scholar
  3. 3.
    Claussen, H.: Performance of macro- and co-channel femtocells in a hierarchical cell structure. In: IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications (2007)Google Scholar
  4. 4.
    de la Roche, G., Valcarce, A., Lopez-Perez, D., Zhang, J.: Access control mechanisms for femtocells. IEEE Commun. Mag. 48(1), 33–39 (2010)CrossRefGoogle Scholar
  5. 5.
    European Commission: Directive 2009/140/EC of the European parliament and of the council. Off. J. Eur. Union L 337(52), 37–68 (2009)Google Scholar
  6. 6.
    European Commission: Radio spectrum policy: first programme. In: COM/2010/0471 final—COD 2010/0252 (2010)Google Scholar
  7. 7.
    European Commission: Spectrum: commission proposes to ensure availability of radio frequencies for new and faster wireless services. In: MEMO/10/425 (2010)Google Scholar
  8. 8.
    Mazzenga, F., Petracca, M., Pomposini, R., Vatalaro, F., Giuliano, R.: Algorithms for dynamic frequency selection for femto-cells of different operators. In: 21st IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Istanbul (2010)Google Scholar
  9. 9.
    ping Yeh, S., Talwar, S., choon Lee, S., Kim, H.: WiMAX femtocells: a perspective on network architecture, capacity, and coverage. IEEE Commun. Mag. 46(10), 5865 (2008)Google Scholar
  10. 10.
    Saunders, S., Carlaw, S., Giustina, A., Rai Bhat, R., Srinivasa Rao, V., Siegberg, R.: Femtocells: opportunities and challenges for business and technology. Wiley, Hoboken (2009)Google Scholar
  11. 11.
    Zhang, J., de la Roche, G.: Femtocells: technologies and deployment. Wiley, Hoboken (2010)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Italia Srl 2011

Authors and Affiliations

  • Franco Mazzenga
    • 1
  • Marco Petracca
    • 1
  • Remo Pomposini
    • 1
  • Francesco Vatalaro
    • 1
  1. 1.Department of Electronic EngineeringUniversity of Rome “Tor Vergata”RomeItaly

Personalised recommendations