Advertisement

Optimization of Base Stations Positioning in Mobile Networks

  • Surgwon Sohn
  • Geun-Sik Jo
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3981)

Abstract

Cell planning is a very complex task because many aspects should be taken into account including the traffic distribution, geography, antenna height of base stations, frequency, and so forth. This becomes more complicated when several constraints are considered such as the quality of service, maximum output power of transmitters, types of power control, and other network requirements. The problems are assignment of mobile stations to the appropriate base station and finding good locations of the base stations. This paper presents a constraint satisfaction problem model for base station location in 3G W-CDMA uplink environments. This is similar to a warehouse location problem, so it is NP-hard and consequently cannot be practically solved by exact methods for real size networks. Thus we apply constraint satisfaction techniques such as variable ordering and value ordering to get good approximate solutions. The algorithm has been implemented by using both integer programming and constraint programming.

Keywords

Mobile Station Constraint Satisfaction Problem Traffic Distribution Total Output Power Total Transmitted Power 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    ITU-T Focus Group on Traffic Engineering for Personal Communication. E.750 Series of Recommendations on Traffic Engineering Aspects of Networks Supporting Mobile and UPT Services. Technical Reference, ITU, Geneva, CH (1999) Google Scholar
  2. 2.
    Glasser, C., Reith, S., Vollmer, H.: The Complexity of Base Station Positioning in Cellular Networks. In: Approximation and Randomized Algorithms in Communication Networks, ICALP Workshops 2000, Proceedings in Informatics, vol. 8, pp. 167–177. Carleton Scientific, Ottawa (2000)Google Scholar
  3. 3.
    Yates, R., Huang, C.Y.: Integrated Power Control and Base Station Assignment. IEEE Trans. Veh. Technol. 44, 638–644 (1995)CrossRefGoogle Scholar
  4. 4.
    ILOG OPL Studio 3.7 User’s ManualGoogle Scholar
  5. 5.
    Smith, B.M.: Constraint Programming in Practice: Scheduling a Rehearsal. Report APES-67-2003 (September 2003)Google Scholar
  6. 6.
    Gilhousen, K.S., Jacobs, I.M., Padovani, R., Viterbi, A.J., Weaver, L.A., Wheatley, C.E.: On the Capacity of a Cellular CDMA System. IEEE Trans. Veh. Technol. 40, 303–312 (1991)CrossRefGoogle Scholar
  7. 7.
    Amaldi, E., Capone, A., Malucelli, F.: Discrete Models and Algorithms for the Capacitated location Problem arising in UMTS network planning. In: Proc. 5th Int. Workshop Discrete Algorithms and Methods for Mobile Computing and Communications, pp. 1–8. ACM, New York (2001)CrossRefGoogle Scholar
  8. 8.
    Amaldi, E., Capone, A., Malucelli, F.: Planning UMTS Base Station Location: Optimization Models with Power Control and Algorithms. IEEE Trans. on Wireless Communications 2, 939–952 (2003)CrossRefGoogle Scholar
  9. 9.
    Mathar, R., Schmeink, M.: Optimal Base Station Positioning and Channel Assignment for 3G Mobile Networks by Integer Programming. In: Ann. of Operations Research, pp. 225–236 (2001)Google Scholar
  10. 10.
    Eisenblatter, A., Fledderus, E.R., Fugenschuh, A., Geerdes, H.F., Heideck, B., Junglas, D., Koch, T., Kurner, T., Martin, A.: Mathematical Methods for Automatic Optimization of UMTS Radio Networks. Technical Report IST-2000-28088-MOMENTUM-D43-PUB (2003)Google Scholar
  11. 11.
    Kumar, V.: Algorithms for Constraint Satisfaction Problems: A Survey. AI Magazine 13, 32–44 (1992)Google Scholar
  12. 12.
    Hata, M.: Empirical Formula for Propagation Loss in Land Mobile Radio Service. IEEE Trans. Veh. Technol. 29, 317–325 (1980)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Surgwon Sohn
    • 1
  • Geun-Sik Jo
    • 2
  1. 1.Division of Computer EngineeringHoseo UniversityAsanKorea
  2. 2.School of Computer Science & EngineeringInha UniversityIncheonKorea

Personalised recommendations