Enhanced Cellular Network Positioning using Space-Time Diversity

This paper presents a generalization of MU ltiple-SI gnalComponent (MUSIC) time of arrival (TOA) estimation using spatial-temporal diversities to enhance the resolvability of the leading edge component as the signal of interest in wireless positioning applications. Combining different covariance matrices corresponding to different diversity branches leads to an effective covariance matrix with better properties in terms of MUSIC requirements. Performance evaluations and analysis of the space-time MUSIC technique are demonstrated using field measurements of the typical outdoor IS-95 CDMA radio propagation channel in both static and pseudo-static scenarios.

[1]  Weihua Zhuang,et al.  Non-line-of-sight error mitigation in TDOA mobile location , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[2]  H. Leung,et al.  A new approach for estimating indoor radio propagation characteristics , 1994 .

[3]  S. S. Wang,et al.  Mobile location method for non-line-of-sight situation , 2000, Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152).

[4]  Andrea Vitaletti,et al.  Cell-ID location technique, limits and benefits: an experimental study , 2004, Sixth IEEE Workshop on Mobile Computing Systems and Applications.

[5]  Kyandoghere Kyamakya,et al.  Mobile positioning technologies in cellular networks: an evaluation of their performance metrics , 2002, MILCOM 2002. Proceedings.

[6]  Mostafa Kaveh,et al.  The statistical performance of the MUSIC and the minimum-norm algorithms in resolving plane waves in noise , 1986, IEEE Trans. Acoust. Speech Signal Process..

[7]  Bor-Sen Chen,et al.  Robust Mobile Location Estimator with NLOS Mitigation using Interacting Multiple Model Algorithm , 2006, IEEE Transactions on Wireless Communications.

[8]  M. Fattouche,et al.  Super-resolution modeling of the indoor radio propagation channel , 1998 .

[9]  M. Fattouche,et al.  Super-resolution of multipath channels in a spread spectrum location system , 1994 .

[10]  Harri Saarnisaari,et al.  TLS-ESPRIT in a time delay estimation , 1997, 1997 IEEE 47th Vehicular Technology Conference. Technology in Motion.

[11]  Thomas Kailath,et al.  Detection of signals by information theoretic criteria , 1985, IEEE Trans. Acoust. Speech Signal Process..

[12]  Michael S. Braasch,et al.  Performance comparison of multipath mitigating receiver architectures , 2001, 2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542).

[13]  Geneviève Jourdain,et al.  Active high resolution time delay estimation for large BT signals , 1991, IEEE Trans. Signal Process..

[14]  Pi-Chun Chen,et al.  A non-line-of-sight error mitigation algorithm in location estimation , 1999, WCNC. 1999 IEEE Wireless Communications and Networking Conference (Cat. No.99TH8466).

[15]  Dingchen Lu.  Multipath Mitigation in TOA Estimation Based on AOA , 2007 .

[16]  T. Rantalainen,et al.  Mobile station emergency locating in GSM , 1996, 1996 IEEE International Conference on Personal Wireless Communications Proceedings and Exhibition. Future Access.

[17]  Thomas Kailath,et al.  Performance analysis of the optimum beamformer in the presence of correlated sources and its behavior under spatial smoothing , 1987, IEEE Trans. Acoust. Speech Signal Process..

[18]  Wang Wei,et al.  A new TDOA location technique based on Taylor series expansion in cellular networks , 2003, Proceedings of the Fourth International Conference on Parallel and Distributed Computing, Applications and Technologies.

[19]  Hiroyuki Tsuji,et al.  Mobile location estimator with NLOS mitigation using Kalman filtering , 2003, 2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003..

[20]  Hisashi Kobayashi,et al.  On Time-of-arrival Positioning in , 2006 .

[21]  Changlin Ma.  Techniques to improve ground-based wireless location performance using a cellular telephone network , 2003 .

[22]  Kaveh Pahlavan,et al.  Super-resolution TOA estimation with diversity for indoor geolocation , 2004, IEEE Transactions on Wireless Communications.

[23]  James J. Caffery,et al.  Wireless Location in CDMA Cellular Radio Systems , 1999 .