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A Novel Hearability Enhancement Method for Forward-Link Multilateration Using OFDM Signal
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 Title & Authors
A Novel Hearability Enhancement Method for Forward-Link Multilateration Using OFDM Signal
Park, Ji-Won; Lim, Jeong-Min; Lee, Kyu-Jin; Sung, Tae-Kyung;
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Together with the GPS-based approach, geo-location through mobile communication networks is a key technology for location-based service. To save the cost, most geo-location system is implemented on the existed network service, which has a cellular structure. Still, multilateration is limited in cellular structure because it is difficult for the mobile terminal to acquire distance measurements from multiple base stations. This low hearability in the receiver is caused by co-channel interference and multipath environment. Therefore, hearability enhancement is necessary for multilateration under multipath and interference environment. Former time domain based hearability methods were designed for real signals. However, orthogonal frequency division multiplexing (OFDM) signal, which its usage has been increased in digital wireless communication, is a complex signal. Thus, different hearability enhancement method is needed for OFDM signals. This paper proposes a hearability enhancement method for forward-link multilateration using OFDM signals, which employ interference cancellation and multipath mitigation. A novel interference cancellation and multipath mitigation strategy for complex-valued OFDM signals is presented that has an iterative structure. Simulation results show that the proposed multilateration method provides the user's position with an accuracy of less than 80m through the mobile WiMAX cellular network in multipath environment.
OFDM;geo-location;Multilateration;Interference cancellation;Hearability;
 Cited by
Joint Estimation of CFO and Channel in OFDM Systems with Blind Noise Statistics, IETE Technical Review, 2016, 1  crossref(new windwow)
F. V. Diggelen, A-GPS: Assisted GPS, GNSS, and SBAS, Artech House, 2009.

P. Misra and P. Enge, Global Positioning System, Signals, Measurements, and Performance, 2nd edition, Ganga-Jamuna Press, pp. 67-90., 2006.

E.D. Kaplan and C. J. Hegarty, Understanding GPS Principles and Applications, 2nd edition, Artech House, pp. 459-630., 2006.

J.J. Caffery Jr., Wireless Location In CDMA Cellular Radio System, Kluwer Academic Publishers, pp. 23- 40, 1999.

A. Bensky, Wireless Positioning Technologies and Applications, Artech House, 2008.

3GPP2 C.S0022-B v2.0, Position Determination Service for CDMA2000 Spread Spectrum Systems, Oct. 2010.

S. Soliman et al., "GPS Receiver Sensitivity Enhancement In Wireless Applications," Technologies for wireless applications IEEE MTT-S Symposium, Vancouver, BC., Canada, Feb. 21-24, 1999.

J. J. Caffery Jr., and G. L. Stuber, "Overview of Radiolocation in CDMA Cellular Systems," IEEE Commun. Mag., Vol. 36, No. 4, pp. 38-45, 1998.

J. G. Andrews, "Interference Cancellation for Cellular Systems: A Contemporary Overview," IEEE Wireless commun., Vol. 12, No.2, pp. 19-29, Apr. 2005. crossref(new window)

G. Boudreau, J. Panicker, N. Guo, R. Chang, N. Wang, and S. Vrzic, "Interference Coordination and Cancellation for 4G Networks - [LTE PART II: 3GPP release 8]," IEEE Commun. Mag., Vol. 47, No. 4, pp. 74-81, 2009.

IEEE. Standard 802.16e-2005 and IEEE Standard 802.16-2004/Cor1-2005, Part16: Air interface for fixed and mobile broadband wireless access systems. Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and mobile Operation in Licensed Bands and Corrigendum 1, Feb. 2006.

X. Li et al., "Total Intercarrier Interference Cancellation for OFDM Mobile Communication Systems," Consumer Communications and Networking Conference, Las Vegas, NV, 9-12 Jan. 2010.

X. G. Doukopoulos and R. Legouable, "Intercell Interference Cancellation for MC-CDMA Systems," IEEE VTC 2007-Spring, Dublin, Ireland, Apr. 2007.

C. Mensing, S. Sand, A. Dammann, and W. Utschick, "Data-Aided Location Estimation in Cellular OFDM Communications Systems," IEEE GLOBECOM 2009, Honolulu, Hi, USA, Nov. 2009.

L. Hanzo, M. Muenster, B. J. Choi, and T. Keller, OFDM and MC-CDMA for broadband multi-user communications, WLANs and broadcasting, John Wiley & Sons, 2003.

D. Borio, L. Camoriano, L. L. Presti, and M. Fantino, "DTFT-Based Frequency Lock Loop for GNSS Applications," IEEE Trans. Aerosp. Electron. Syst., Vol. 44, No. 2, pp. 595-612, Apr. 2008. crossref(new window)

S. Kay, Fundamentals of Statistical Signal Processing, Estimation Theory, Prentice Hall, 1998.

S. K. Shanmugam, "Improving GPS L1 C/A code correlation properties using a novel multi-correlator differential detection technique," ION GNSS 2006, Fort Worth TX, Sep. 26-29, 2006.

A. Radovic, "An iterative near-far resistant algorithm for joint parameter estimation in asynchronous CDMA systems," in Proceedings of 5th Int. Symp. Personal, Indoor, Mobile Radio Commun., Hague, Netherlands, pp. 199-203, Sept. 18-23, 1994.

H. Lutkepohl, Handbook of Matrix, John Wiley & Sons, 1996, pp. 131-132.

H. L. Van trees, Optimum Array Processing, Part IV of Detection, Estimation, and Modulation Theory, John Wiley & Sons, 2002, pp. 1364-1365.

ITU-R Recommendation m.1225, Guidelines for evaluation of radio transmission technologies for IMT-2000, 1997.

ITU-R WP 5D, Guidelines for Evaluation of Radio Interface Technologies for IMT-Advanced, R07- WP5D-080128-TD-0046, Jan. 2008.

Y. T. Chan and K. C. Ho, "A simple and efficient estimator for hyperbolic location," IEEE Trans. Signal Process., Vol. 42, No. 8, pp. 1905-1915, Aug. 1994. crossref(new window)

Zou, W.Y. and Yiyan Wu, "COFDM: An overview," IEEE Transactions on Broadcasting, Vol. 41, Issue 1, pp. 1-8, March 1995. crossref(new window)

E. Ertin, U. Mitra, and S. Siwamogsatham, "Maximumlikelihood- based multipath channel estimation for code-division multiple-access systems," IEEE Trans. Commun., Vol. 49, pp. 290-302, 2001. crossref(new window)

K. Higuchi, A. Fujiwara, and M. Sawahashi, "Multipath Interference Canceller for High-Speed Packet Transmission with Adaptive Modulation and Coding Scheme in W-CDMA Forward Link," IEEE JSAC, Vol. 20, No. 2, Feb. 2002, pp. 419-432.

M. Z. H. Bhuiyan and E. S. Lohan, "Advanced Multipath Mitigation Techniques for Satellite-Based Positioning Applications," International Journal of Navigation and Observation, Vol. 2010, Article ID 412393.

Y. Wang, C. C. Chai, and T. T. Tjhung, "Multipath interference cancellation scheme for multicode CDMA systems in multipath fading channels," in Proceedings of IEEE WCNC, 2004, pp. 1817-1822.