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A Proposal Solution for Interference Inter-Operators

By Abdelouahed Jraifi, R. Ahl Laamara, A. Belhaj, and E. Saidi
Progress In Electromagnetics Research C, Vol. 12, 15-25, 2010


With deregulation of telecom sector (law 24/96) in our country (Morocco), many operators of cellular network appear. Among the operators technology that operate, we find GSM9800 and CDMA900 that are used by two different operators. It turns out from the measurements of indicator of quality of service that the performance of GSM900 is degraded, and the major cause is the interference created by CDM800 which cannot be neglected. In this paper, we adopt a new approach in order to make GSM900 and CDMA800 operate in harmony. This method is based on a physical optimization of antenna systems and could be understood as a physical symmetry rotation in the space of parameters such that tilt and Azmit control the system. It independently reduces the interference effects on the distance between the base stations. Moreover, it allows us to improve client service without using hard installations and inexpensive technologies.


Abdelouahed Jraifi, R. Ahl Laamara, A. Belhaj, and E. Saidi, "A Proposal Solution for Interference Inter-Operators," Progress In Electromagnetics Research C, Vol. 12, 15-25, 2010.


    1. Iker, L., S. Andreas, G. David, P. Gorka, M. Javier, and A. Pablo, "Estimation of inchannel-interference to digital radio mondiale (DRM) signals during operation," IEEE Transactions on Broadcasting, Vol. 54, No. 2, 287-295, 2008.

    2. Grokop, L. H., "Interference management in wireless networks: Physical layer communication strategies, MAC layer interactions, and high layer messaging structures,", Technical Report, Sep. 2008.

    3. Perez, R., Wireless Communications Design Handbook, Terrestrial and Mobile Interference, Vol. 2, 20, 1998.

    4. ASIA Pacific Telecommunity, "APT report on studies on the existence between IMT-2000 technologies and other wireless access technology in adjacent and near adjacent frequency band,", APT/AWF/REP-4, Aug. 2007.

    5. Stravroulakis, P., Interference Analysis and Reduction for Wireless System, 236, 2003.

    6. Paschos, G., S. A. Kotsopoulos, D. A. Zogas, and G. K. Karagiamnidis, "The impact of intermodulation interference in super-imposed 2G and 3G wireless networks and optimization issues of the provided QoS,", The impact of intermodulation interference in superimposed 2G and gr/Archive/Papers/.

    7. Chen, Z. and K.-M. Luk, Antennas for Base Stations in Wireless Communication, 2009.

    8. Perez, R., Wireless Communications Design Handbook, Volume 1: Space Interference: Aspects of Noise, Interference and Environmental Concerns, 222, 1998.

    9. Korhonen, J., Introduction to 3G Mobile Communication, 2nd Ed., 2003.