Wireless Personal Communications

, Volume 60, Issue 1, pp 83–104 | Cite as

Cost-Effective Frequency Planning for Capacity Enhancement of Femtocellular Networks

  • Mostafa Zaman Chowdhury
  • Yeong Min Jang
  • Zygmunt J. Haas
Article

Abstract

The femto-access-point, a low-cost and small-size cellular base-station, is envisioned to be widely deployed in subscribers homes, as to provide high data-rate communications with improved quality of service. As femtocellular networks will co-exist with macrocellular networks, mitigation of the interference between these two network types is a key challenge for successful integration of these two technologies. In particular, there are several interference mechanisms between the femtocellular and the macrocellular networks, and the effects of the resulting interference depend on the density of femtocells and the overlaid macrocells in a particular coverage area. While improper interference management can cause a significant reduction in the system capacity and can increase the outage probability, effective and efficient frequency allocation among femtocells and macrocells can result in a successful co-existence of these two technologies. Furthermore, highly dense femtocellular deployments—the ultimate goal of the femtocellular technology—will require significant degree of self-organization in lieu of manual configuration. In this paper, we present various femtocellular network deployment scenarios, and we propose a number of frequency-allocation schemes to mitigate the interference and to increase the spectral efficiency of the integrated network. These schemes include: shared frequency band, dedicated frequency band, sub-frequency band, static frequency-reuse, and dynamic frequency-reuse. We derive an analytical model, which allows us to analyze in details the users outage probability, and we compare the performance of the proposed schemes using numerical analysis.

Keywords

Femtocell Overlay networks Interference management Frequency allocation SON Outage probability 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Chandrasekhar V., Andrews J. G., Gatherer A. (2008) Femtocell networks: A survey. IEEE Communication Magazine 46(9): 59–67CrossRefGoogle Scholar
  2. 2.
    Femtoforum. (2008). OFDMA interference study: Evaluation methodology document (pp. 9–15).Google Scholar
  3. 3.
    Ali S. H., Leung V. C. M. (2009) Dynamic frequency allocation in fractional frequency reused OFDMA networks. IEEE Transaction on Wireless Communication 8(8): 4286–4295CrossRefGoogle Scholar
  4. 4.
    Elayoubi S. -E., Ben Haddada O., Fourestie B. (2008) Performance evaluation of frequency planning schemes in OFDMA-based networks. IEEE Transaction on Wireless Communication 7(5): 1623–1633CrossRefGoogle Scholar
  5. 5.
    Del Re E., Fantacci R., Giambene G. (1995) Dynamic channel techniques in mobile cellular networks handover and allocation. IEEE Transaction on Vehicular Technology 44(2): 229–237CrossRefGoogle Scholar
  6. 6.
    3GPP TS 32.500. (2008). Telecommunication management; self-organizing networks (SON); concepts and requirements.Google Scholar
  7. 7.
    Femtoforum white paper. (2008). Interference management in UMTS femtocells.Google Scholar
  8. 8.
    Claussen, H., Ho, L. T. W., & Samuel, L. G. (2008). Self-optimization of coverage for femtocell deployment. In Proceedings of wireless telecommunications symposium (WTS) (pp. 278–285).Google Scholar
  9. 9.
    Rahman, M., Yanikomeroglu, H., & Wong, W. (2009). Interference avoidance with dynamic inter-cell coordination for downlink LTE system. In Proceedings of wireless communications and networking conference (WCNC) (pp. 1–6).Google Scholar
  10. 10.
    Liu, T., & Everitt, D. (2006). Analytical approximation of other-cell interference in the uplink of CDMA cellular systems. In Proceedings of vehicular technology conference (pp. 693–697).Google Scholar
  11. 11.
    Rappaport, T. S. (2002). Wireless communications: Principles and practice, 2nd Edn. Prentice Hall, ISBN: 0130422320.Google Scholar
  12. 12.
    Ni S., Liang Y., Hassman S. -G. (2000) Outage probability in GSM-GPRS cellular systems with and without frequency hopping. Wireless Personal Communication 14(3): 215–234CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC. 2011

Authors and Affiliations

  • Mostafa Zaman Chowdhury
    • 1
  • Yeong Min Jang
    • 1
  • Zygmunt J. Haas
    • 2
  1. 1.Department of Electronics EngineeringKookmin UniversitySeoulSouth Korea
  2. 2.Wireless Networks LabCornell UniversityIthacaUSA

Personalised recommendations