3Hazas M, Scott J, Krumm J. Location-aware computing comes of age[J]. Computer, 2004,37(2) :95 -97.
4Rodriguez M D, Favela J, Martinez E A, et al. Location-aware Access to Hospital Information and Services[J]. IEEE Transactions on Information Technology in Biomedicine, 2004, 8 (4):448 - 455.
5Harroud H, Ahmed M, Karmoueh A. Policy-driven Personalized Multimedia Services for Mobile Users [ J ]. IEEE Transactions on Mobile Computing, 2003, 2(1) :16-24.
6Bald P, Padmanabhan V N. RADAR: an In-building RF-based Lo- cation and Tracking System[ J]//Proceedings of the IEEE INFO- COM, Tel-Aviv, Israel: 2000:775 - 78.
7Pahlavan K, Krishnamurth P. Principles of Wireless Networks: A Unified Approach [ M ]. Upper Saddle River, NJ: Prentice Hall PTR, 2001.
8Kaemarungsi K, Krishnamurthy P. Properties of Indoor Received Signal Strength for WLAN Location Fingerprinting [ J ]. Mobi Quitous,2004 : 14 - 23.
9Bahl P, Padmanabhan V N. Enhancements of the RADAR User Location and Tracking System[ R]. Technical Report MSR-TR-2000- 12,2000.
10Bahl P, Padmanabhan V N. A Software System for Locating Mobile Users : Design, Evaluation and Lessons [ R ]. MSR-TR-2000-12, 2000.
