Prediction of Pilot Pollution in High-Rise Buildings Covered by Outdoor Base Station

Abstract:

In Code Division Multiple Access (CDMA) communication systems, the pilot pollution in high-rise building area is an increasingly prominent and long-standing problem, which seriously affects Quality of Service (QoS) and User Experience (UE). This paper presents a predicting method of pilot pollution in high-rise building area covered by Outdoor Base Station (OBS).The method, which is based on Operation Maintenance Center (OMC) and location (LOC) data, can predict pilot pollution severity occurred in high-rise and pertinently recommend a prioritization scheme, by analyzing the relationship of pilot strength, distance and angle between target area and OBS. The validity and feasibility of this prediction method have been verified by Call Quality Test (CQT). Operators Capital Expenditure (CAPEX) and Operating Expense (OPEX) could be greatly reduced with the efficient and convenient prediction.

• Periodical: Advanced Materials Research (Volumes 443-444)
• Pages: 430-436
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.443-444.430
• Online since: January 2012
• Authors: Min Niu, Cui Bo Yu, Xiao Hua Zhang, Wen Yuan Ke
• Keywords: Ec/Io, Pilot Pollution, Prediction

References

[1] Jin Yang, Analysis and simulation of a CDMA PCS indoor system with distributed antenna, Proceedings of 6th IEEE Symposium on PIMRC, 1999, p.1123.

[2] Motorola, Impact on Call Detail Log (CDL) and Call Final Class(CFC) in Release 2. 16. 0, unpublished.

[3] H. Boche and M. Schuben, Theoretical and experimental comparisons of optimization criteria for downlink beam forming, European Transactions on Telecommunications, Special Issue on Smart Antennas. vol. 12, no. 5, Sep. 2001, pp.417-426.

[4] Niemela and J. Lempidinen, Mitigation of pilot pollution through base station antenna configuration in WCDMA, , in Proc. IEEE 60th Semiannual Vehicular Technology Conf., vol. 6, 2004, pp.4270-4274.

DOI: 10.1109/vetecf.2004.1404884

[5] R. T. Love, K. A. Beshir, D. Schaeffer, and R. S. Nikides, A Pilot optimization technique for CDMA cellular systems, in Proc. 50th IEEE Vehicular Technology Conf., vol. 4, 1999, pp.2238-2242.

DOI: 10.1109/vetecf.1999.797336

[6] IEEE Vehicular Technology Society Committee on Radio Propagation, Coverage Prediction for Mobile Radio Systems Operating in the 800/900 MHz Frequency Range, IEEE Trans. on Vehicular Technology, special issue on mobile radio propagation, vol. 37, no. 1, Feb. 1988, pp.3-71.

DOI: 10.1109/25.42678

[7] Miller, and L. E., Propagation Model Sensitivity Study,J. S. Lee Associates, Inc. report under contract DAAL 02-89-C-0040, Jul. 1992, DTIC AC: AD-B166479.

[8] Mobile Station -Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System, Ballot Version (IS-95), TIA, 1994, pp.6-182.

[9] Qualcomm, CDMA Network Engineering Handbook, (1995).

[10] Guangqian Dong, Quantitative calculation of the shortest curve on the spherical surface, Journal of Longdong University, vol. 15, no. 1, Mar. 2005, pp.5-7.

[11] Tonghe Wang, Research on Two Formula in Topographic Survey, Journal of Geometrics Science and Technology, vol. 12, no. 3, Sep. 1995, pp.211-213.

[12] Yiping Wang, Leo Strawczynski and John Nielsen, Mobile Based Pilot Long Integration for Position Location, IEEE Journal on selected areas in communications, Mar. 1999, pp.291-295.

DOI: 10.1109/wcnc.1999.797833