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Evaluation of Multiusers’ Interference on Radiolocation in CDMA Cellular Networks
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Wireless Sensor Network·Volume 02 (2010)·Pages 93–99·Published 1 March 2010·DOI10.4236/wsn.2010.22013
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Abstract
Radiolocation has been previously studied for CDMA networks, the effect of Multiple Access Interference has been ignored. In this paper we investigate the problem of Radiolocation in the presence of Multiple Access Interference. An extensive simulation technique was developed, which measures the error in location estimation for different network and user configurations. We include the effects of lognormal shadow and Rayleigh fading. Results that illustrate the effects of varying shadowing losses, number of base stations involved in position location, early-late discriminator offset and cell sizes in conjunction with the varying number of users per cell on the accuracy of radiolocation estimation was presented.
KeywordsCode Division Multiple AccessRadiolocationMultiple Access InterferenceBase StationMobile Station.
- R. Ilts, “Joint estimation of PN code delay and multipath using extended kalman filter,” IEEE Transactions on Communications, Vol. 38, pp. 1677–1685, October 1990.
- M. Silventoinen and T. Rantalainen, “Mobile station emergency locating in GSM,” Proceeding of IEEE International Conference on Wireless Communications, pp. 232–38, 1996.
- M. Wyile and J. Holtzman, “The non line of sight problem in mobile location estimation,” Proceedings of IEEE ICUPC, pp. 827–831, 1996.
- J. Caffery, Jr, and G. Stuber, “Subscriber location in CDMA cellular networks,” IEEE transactions vehicle technology, Vol. 47 No. 2, pp. 406–15, May 1998.
- M. Hata and T. Nagatsu, “Mobile location using signal strength measurements in a cellular system,” IEEE Transactions Vehicle Technology, Vol. 29, pp. 245– 251, May 1980.
- R. K Morrow, Jr., and J. S. Lehnert, “Bit-to-bit error dependence in slotted DS/SSMA packet systems with random signature sequences,” IEEE Transactions on Communications, Vol. 37, No. 10, October 1989.
- T. S. Rappaport, “Wireless communications principles & practice,” IEEE Press, New York, Prentice-Hall, 2002.
- A. J. Bamisaye and M. O. Kolawole, “Evaluation of downlink performance of a multiple-cell, rake receiver assisted CDMA mobile system,” Journal of Wireless Sensor Network, 2009.
- R. G. Akl, M. V. Hegde, A. Chandra, and P. S. Min, “CCAP: CDMA capacity allocation and planning,” Tech Republic, Washington University, April 1998.
- W. C. Y. Lee, “Mobile cellular telecommunications, analog and digital systems,” 2nd Edtion, McGraw-Hill, Inc, 1990.
- K. Krizman, T. Biedka, and T. Rappaport, “Wireless position location: Fundamentals implementation stra- tegies, and sources of error,” in Proceedings of Vehicular Technology Conference, pp. 919–923, 1997.