[1] M. Weiser, “Ubiquitous Computing,” Xerox Palo Alto Research Center, 2012. http://sandbox.xerox.com/ubicomp/
[2] Weiser, Mark, “The Computer for the 21st Century,” Scientific American, 1991. http://www.ics.uci.edu/~dutt/ics212-wq05/weiser-sci-am-sep-91.pdf
[3] Insight Research Corp., “Location Based Services Market, 2007-2011: A Market Research Report,” 2007. http://www.insightcorp.com/reports/ipappslbs.asp
[4] S. Dhar and U. Varshney, “Challenges and Business Models for Mobile Location-Based Services and Advertising,” Communications of the ACM, Vol. 54, No. 5, 2011, pp. 121-128. doi:10.1145/1941487. 1941515
[5] M. Satyanarayanan, “Mobile Computing: The Next Decade,” Proceedings of the 1st ACM Workshop on Mobile Cloud Computing & Services: Social Networks and Beyond, ACM, New York, 2010, pp. 5:1-5:6. doi:10.1145/1810931.1810936.
[6] Y. Ji, S. Biaz, S. Pandey and P. Agrawal, “ARIADNE: A Dynamic Indoor Signal Map Construction and Localization System,” The 4th International Conference on Mobile Systems, Applications, and Services, Uppsala, 19-22 June 2006.
[7] Y. Ji, S. Biaz, S. Wu and B. Qi, “Optimal Sniffers Deployment for Wireless Indoor Localization,” 16th International Conference on Computer Communications and Networks, Honolulu, 13-16 August 2007.
[8] Y. Ji, “Navigation Using Environmental Constraints,” 6th Annual IEEE Consumer Communications and Networking Conference, Las Vegas, 10-13 January 2009.
[9] Y. Ji and L. Chen, “Dynamic Indoor Location Determination: Mechanisms and Robustness Evaluation,” 6th International Conference on Autonomic and Autonomous Systems, Cancun, 7-13 March 2010, pp. 70-77.
[10] Y. Ji and P. Robert, “A 3-D Indoor Radio Propagation Model for WiFi and RFID,” 9th ACM International Symposium on Mobility Management and Wireless Access, Miami, 31 October-4 November 2011.
[11] Y. Ji, “Indoor Localization Robustness and Performance Improvement,” International Journal of Communication Networks and Distributed Systems: Special Issue on Scalable Wireless Networks, No. 1/2, 2011, pp. 3-15.
[12] Y. Ji, “Performance Analysis for Indoor Location Determination,” International Journal of Ad Hoc and Ubiquitous Computing: Special Issue on Wireless Network Algorithm and Theory, No. 1/2, 2011, pp. 3-15.
[13] R. Want, A. Hopper, V. Falcao and J. Gibbons, “The Active Badge Location Systems,” ACM Transactions on Information Systems, Vol. 10, No. 1, 1992, pp. 91-102.
[14] N. Priyantha, A. Chakraborty and H. Balakrishnan, “The Cricket Location Support System,” Proceedings of MOBICOM, Boston, 6-11 August 2000, pp. 266-274.
[15] A. Savvides, C.-C. Han and M. B. Strivastava, “Dynamic Fine-Grained Localization in Ad-Hoc Networks of Sensors,” MOBICOM, Rome, 16-21 July 2001.
[16] O. Vinyals, E. Martin and G. Friedland, “Multimodal Indoor Localization: An Audio-Wireless-Based Approach,” 4th International Conference on Semantic Computing, Pittsburgh, 22-24 September 2010, pp. 120-125.
[17] S. P. Tarzia, P. A. Dinda, R. P. Dick and G. Memik, “Demo: Indoor Localization without Infrastructure Using the Acoustic Background Spectrum,” Proceedings of the 9th International Conference on Mobile Systems, Applications, and Services, ACM, New York, 2011, pp. 385-386. doi:10.1145/1999995.2000047.
[18] J. Krumm, S. Harris, B. Meyers, B. Brumitt, M. Hale and S. Shafer, “Multi-Camera Multi-Person Tracking for Easy Living,” 3rd IEEE International Workshop on Visual Surveillance, Dublin, 1 July 2000.
[19] M. Kais, S. Dauvillier, A. De la Fortelle, I. Masaki and C. Laugier, “Towards Outdoor Localization Using GIS, Vision System and Stochastic Error Propagation,” Palmerston North (NZ), 2004. http://emotion.inrialpes.fr/bibemotion/2004/KDDML04.
[20] M. Agrawal and K. Konolige, “Real-Time Localization in Outdoor Environments Using Stereo Vision and Inexpensive GPS,” Proceedings of the 18th International Conference on Pattern Recognition, IEEE Computer Society, Washington, 2006, pp. 1063-1068.
[21] N. Lemieux and H. Lutfiyya, “Whlocator: Hybrid Indoor Positioning System,” Proceedings of the 2009 International Conference on Pervasive Services, ACM, New York, 2009, pp. 55-64. doi:10.1145/1568199.1568209.
[22] O. Woodman and R. Harle, “Pedestrian Localization for Indoor Environments,” Proceedings of the 10th International Conference on Ubiquitous Computing, ACM, New York, 2008, pp. 114-123. doi:10.1145/1409635.1409651.
[23] P. Robertson, M. Angermann and B. Krach, “Simultaneous Localization and Mapping for Pedestrians Using Only Foot-Mounted Inertial Sensors,” Proceedings of the 11th International Conference on Ubiquitous Computing, ACM, New York, 2009, pp. 93-96. doi:10.1145/ 1620545.1620560.
[24] P. Bahl and V. Padmanabhan, “RADAR: An In-Building RF-Based User Location and Tracking System,” Infocom, 2000, pp. 775-784.
[25] A. LaMarca, Y. Chawathe, S. Consolvo, J. Hightower, I. Smith, J. Scott, T. Sohn, J. Howard, J. Hughes, F. Potter, J. Tabert, P. Powledge, G. Borriello and B. Schilit, “Place Lab: Device Positioning Using Radio Beacons in the Wild,” Proceedings of Pervasive, Munich, 8-13 May 2005, pp. 116-133.
[26] Y.-C. Cheng, Y. Chawathe, A. LaMarca and J. Krumm, “Accuracy Characterization for Metropolitan-Scale Wi-Fi Localization,” Mobisys, 2005.
[27] S. Tadakamadla, “Indoor Local Positioning System for Zigbee, Based on RSSI,” Master’s Thesis, Mid Sweden University, Ostersund, 2006.
[28] J. Blumenthal, R. Grossmann, F. Golatowski and D. Timmermann, “Weighted Centroid Localization in Zig-Bee-Based Sensor Networks,” IEEE International Symposium on Intelligent Signal Processing, Alcala De Henares, 3-5 October 2007, pp. 1-6.
[29] A.-I. Noh, W. Lee and J. Ye, “Comparison of the Mechanisms of the ZigBee’s Indoor Localization Algorithm,” 9th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing, Kyoto, 6-8 August 2008, pp. 13-18.
[30] K. Curran and E. Furey, “Pinpointing Users with Location Estimation Techniques and Wi-Fi Hotspot Technology,” International Journal of Network Management, Vol. 18, No. 5, 2008, pp. 395-408. doi:10.1002/nem.683.
[31] Y.-S. Chiou, C.-L. Wang, S.-C. Yeh and M.-Y. Su, “Design of an Adaptive Positioning System Based on Wi-Fi Radio Signals,” Computer Communications, Vol. 32, No. 7-10, 2009, pp. 1245-1254. http://portal.acm.org/citation.cfm?id=1542555.1542776.
[32] K. Chintalapudi, A. PadmanabhaIyer and V. N. Padmanabhan, “Indoor Localization without the Pain,” Proceedings of the 16th Annual International Conference on Mobile Computing and Networking, ACM, New York, 2010, pp. 173-184. doi:10.1145/ 1859995.1860016.
[33] M. Giuberti, M. Martalo and G. Ferrari, “Fingerprinting-Based Wireless 3d Localization for Motion Capture Applications,” Proceedings of the 1st ACM Mobi Hoc Workshop on Pervasive Wireless Healthcare, ACM, New York, 2011, pp. 6:1-6:8. doi:10.1145/ 2007036.2007044.
[34] R. Russell, “A Practical Demonstration of the Application of Olfactory Sensing to Robot Navigation,” Proceedings of the International Advanced Robotics Program, Sydney, 18-19 May 1995, pp. 35-43.
[35] S. K. Yeluri, “Outdoor Localization Technique Using Landmarks to Determine. Position and Orientation,” Master’s Thesis, University of Florida, Gainesville, 2003.
[36] L. E. Miller, P. F. Wilson, N. P. Bryner, M. H. Francis, J. R. Guerrieri, D. W. Stroup and L. Klein-Berndt, “Rfid-Assisted Indoor Localization and Communication for First Responders,” The European Conference on Antennas and Propagation, Nice, 6-10 October 2006.
[37] J. Borkowski and U. Lempiainen, “Practical Network- Based Techniques for Mobile Positioning in Umts,” EURASIP Journal on Applied Signal Processing, 2006, pp. 1-15, Article ID 12930.
[38] A. Kealy, G. Roberts and G. Retscher, “Evaluating the Performance of Low Cost Mems Inertial Sensors for Seamless Indoor/Outdoor Navigation,” Position Location and Navigation Symposium, Indian Wells, 4-6 May 2010, pp. 157-167.
[39] M. Isaac, “New Version of Google Maps Brings Indoor Floor Plans to Your Phone,” CNN Tech, 2011. http://www.cnn.com/2011/11/30/tech/mobile/new-version-googlemaps-indoors-wired/.
[40] J. Hightower and G. Boriello, “Localization Systems for Ubiquitous Computing,” IEEE Computer Magazine, Vol. 34, No. 8, 2001, pp. 57-66.
[41] S. Thrun, “Robotic Mapping: A Survey,” 2002. http://citeseer.ist.psu.edu/thrun02robotic.html.
[42] R. J. Fontana, E. Richley and J. Barney, “Commercialization of an Ultra-Wideband Precision Asset Location System,” IEEE Conference on Ultra-Wideband Systems and Technologies, Reston, 16-19 November 2003, pp. 369-373.
[43] E. Elnahrawy, X. Li and R. P. Martin, “The Limits of Localization Using Signal Strength: A Comparative Study,” Sensor Systems, Baltimore, 3-5 November 2004, pp. 283-284.
[44] X. Cheng, A. Thaeler, G. Xue and D. Chen, “TPS: A Time-Based Positioning Scheme for Outdoor Sensor Networks,” IEEE Infocom, Vol. 4, 2004, pp. 2685-2696.
[45] A. H. Sayed, A. Tarighat and N. Khajehnouri, “Network-Based Wireless Location: Challenges Faced in Developing Techniques for Accurate Wireless Location Information,” IEEE Signal Processing Magazine, Vol. 22, No. 4, 2005, pp. 24-40.
[46] M. Youssef, A. Youssef, C. Rieger, U. Shankar and A. Agrawala, “Pinpoint: An Asynchronous Time-Based Location Determination System,” MobiSys 2006, ACM Press, New York, 2006, pp. 165-176.
[47] H. Lim, L. Kung, R. Doverspike and J. Hou, “Zero-Config., Robust Indoor Localization: Theory and Experimentation,” InfoCom, 2006.
[48] A. Aksu and P. Krishnamurthy, “Sub-Area Localization: A Simple Calibration Free Approach,” Proceedings of the 13th ACM International Conference on Modeling, Analysis, and Simulation of Wireless and Mobile Systems, ACM, New York, 2010, pp. 63-72. doi:10.1145/ 1868521.1868534.
[49] M. Kallmann, “Shortest Paths with Arbitrary Clearance from Navigation Meshes,” Proceedings of the 2010 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, Eurographics Association, Aire-la-Ville, 2010, pp. 159-168. http://dl.acm.org/citation.cfm? id=1921427.1921451
[50] K. Lin, A. Kansal, D. Lymberopoulos and F. Zhao, “Energy-Accuracy Trade-Off for Continuous Mobile Device Location,” Proceedings of the 8th International Conference on Mobile Systems, Applications, and Services, ACM, New York, 2010, pp. 285-298. doi:10.1145/ 1814433.1814462.
[51] H. Lim, L.-C. Kung, J. C. Hou and H. Luo, “Zero-Configuration Indoor Localization over IEEE 802.11 Wireless Infrastructure,” Wireless Networks, Vol. 16, 2010, pp. 405-420. doi:10.1007/s11276-008-0140-3.
[52] A. M. Ladd, K. E. Bekris, A. P. Rudys, D. S. Wallach and L. E. Kavraki, “On the Feasibility of Using Wireless Ethernet for Indoor Localization,” IEEE Transactions on Robotics and Automation, Vol. 20, No. 3, 2004, pp. 555-559.
[53] P. Krishnan, A. Krishnakumar, W. Ju, C. Mallows and S. Ganu, “A Systemfor LEASE: System for Location Estimation Assisted by Stationary Emitters for Indoor Wireless Networks,” Infocom, 2004.
[54] Skyhook Wireless, 2012. http://www.skyhookwireless.com/
[55] A. Haeberlen, E. Flannery, A. M. Ladd, A. Rudys, D. S. Wallach and L. E.Kavraki, “Practical Robust Localization over Large-Scale 802.11 Wireless Networks,” MobiCom, Philadelphia, 2004.
[56] A. Hatami and K. Pahlavan, “In Building Intruder Detection for WLAN Access,” Position Location and Navigation Symposium, Monterey, 26-29 April 2004, pp. 592-597.
[57] M. Chen, T. Sohn, J. Hightower, T. Sohn, A. LaMarca, I. Smith, D. Chmelev, J. Hughes and F. Potter, “Practical Metropolitan-Scale Positioning for GSM Phones,” Proceedings of Ubicomp, Orange County, 17-21 September 2006.
[58] Y.-S. Chiou, C.-L. Wang and S.-C. Yeh, “An Adaptive Location Estimator Using Tracking Algorithms for Indoor WLANS,” Wireless Networks, Vol. 16, 2010, pp. 1987-2012. doi:10.1007/ s11276-010-0240-8.
[59] G. P. Roston and E. Krotkov, “Dead Reckoning Navigation for Walking Robots,” Robotics Institute, Carnegie Mellon University, Pittsburgh, 1991.
[60] J. Craig, “Introduction to Robotics, Mechanics and Control,” Addison-Wesley, New York, 1986.
[61] N. Satthamnuwong, “Dead Reckoning-Aided GPS Vehicle Navigation Using Sequential Least Squares with Weighted Constraints,” Ph.D. Dissertation, Purdue University, West Lafayette, 2002.
[62] D. Gebre-Egziabher, J. D. Powell, and P. Enge, “Design and Performance Analysis of a Low-Cost Aided Dead Reckoning Navigation System,” International Conference on Integrated Navigation Systems, St. Petersburg, 28-30 May 2001.
[63] N. A. Alsindi, “Performance of Toa Estimation Algorithms in Different Indoor Multipath Conditions,” Master’s Thesis, Worcester Polytechnic Institute, 2004.
[64] T. S. Rappaport, “Wireless Communications: Principles and Practice,” 2nd Edition, Prentice Hall, Upper Saddle River, 2001.
[65] M. Lott and I. Forkel, “A Multi-Wall-and-Floor Model for Indoor Radio Propagation,” Vehicular Technology Conference, Vol. 1, 2001, pp. 464-468.
[66] S. Phaiboon, “An Empirically Based Path Loss Model for Indoor Wireless Channels in Laboratory Building,” IEEE TENCON, Vol. 2, 2002, pp. 1020-1023.
[67] M. Hassan-Ali and K. Pahlavan, “A New Statistical Model for Site-Specific Indoor Radio Propagation Prediction Based on Geometric Optics and Geometric Probability,” IEEE Transactions on Wireless Communications, Vol. 1, 2002, pp. 112-124.
[68] A. Hills, J. Schlegel and B. Jenkins, “Estimating Signal Strengths in the Design of an Indoor Wireless Network,” IEEE Transactions on Wireless Communications, Vol. 3, No. 1, 2004, pp. 17-19.
[69] A. M. Hossain, H. N. Van, Y. Jin and W.-S. Soh, “Indoor Localization Using Multiple Wireless Technologies,” IEEE Mobile Ad Hoc and Sensor Systems, Pisa, 8-11 October 2007, pp. 1-8.
[70] Y. Ji, “Ultimate Precision Bound and Comparison Study of Dynamic Indoor Localization Systems,” Wireless Conference (EW), Lucca, 12-15 April 2010, pp. 149-156.
[71] W. S. Holland, “Development of an Indoor Real-Time Localization System Using Passive Rfid Tags and Artificial Neural Networks,” Master’s Thesis, Ohio University, Athens, 2009.
[72] G. Y. Jin, X. Y. Lu and M.-S. Park, “An Indoor Localization Mechanism Using Active Rfid Tag,” International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing, Vol. 1, 2006, pp. 40-43.
[73] K. Curran and S. Norrby, “Rfid-Enabled Location Determination within Indoor Environments,” International Journal of Ambient Computing and Intelligence, Vol. 1, No. 4, 2009, pp. 63-86.
[74] E. Welbourne, K. Koscher, E. Soroush, M. Balazinska and G. Borriello, “Longitudinal Study of a Building-Scale Rfid Ecosystem,” Proceedings of the 7th International Conference on Mobile Systems, Applications, and Services, ACM, New York, 2009, pp. 69-82. doi:10.1145/ 1555816.1555824.
[75] T. Li, S. Chen and Y. Ling, “Identifying the Missing Tags in a Large RFID System,” Proceedings of the 11th ACM International Symposium on Mobile Ad Hoc Networking and Computing, ACM, New York, 2010, pp. 1-10. doi:10.1145/1860093.1860095.
[76] C. Wang, B. Li, M. Daneshmand, K. Sohraby and R. Jana, “On Object Identification Reliability Using RFID,” Mobile Networks and Applications, Vol. 16, 2011, pp. 71-80. doi:10.1007/s11036 -010-0226-x.
[77] T. Kuflik, O. Stock, M. Zancanaro, A. Gorfinkel, S. Jbara, S. Kats, J. Sheidin and N. Kashtan, “A Visitor’s Guide in an Active Museum: Presentations, Communications, and Reflection,” Journal on Computing and Cultural Heritage, Vol. 3, 2011, pp. 11:1-11:25. doi:10.1145/1921614.1921618.
[78] R. A. Valenzuela, O. Landron, and D. L. Jacobs, “Estimating Local Mean Signal Strength of Indoor Multipath Propagation,” Vehicular Technology Conference, Vol. 46, No. 1, 1997, pp. 203-212.
[79] P. Ali-Rantala, L. Sydanheimo, M. Keskilammi and M. Kivikoski, “Indoor Propagation Comparison between 2.45 GHz and 433 MHz Transmissions,” Antennas and Propagation Society International Symposium, Vol. 1, 2002, pp. 240-243.
[80] Y. Alvarez, M. E. de Cos, J. Lorenzo and F. Las-Heras, “Novel Received Signal Strength-Based Indoor Location System: Development and Testing,” EURASIP Journal on Wireless Communications and Networking, Vol. 2010, 2010, pp. 1-11. doi:10.1155/ 2010/254345.
[81] R. A. Valenzuela, “Ray Tracing Prediction of Indoor Radio Propagation,” Wireless Networks—Catching the Mobile Future, 5th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel, 18-23 September 1994.
[82] C.-F. Yang, B.-C. Wu and C.-J. Ko, “A Ray-Tracing Method for Modeling Indoor Wave Propagation and Penetration,” IEEE Transaction on Antennas and Propagation, Vol. 46, No. 6, 1998.
[83] K. Remley, H. Anderson and A. Weisshar, “Improving the Accuracy of Ray Tracing Techniques for Indoor Propagation Modeling,” IEEE Transactions on Vehicular Technology, Vol. 49, No. 6, 2000, pp. 2350-2358.
[84] H. Weghorst, G. Hooper and D. P. Greenberg, “Improved Computational Methods for Ray Tracing,” ACM Transactions on Graphics, Vol. 3, No. 1, 1984, pp. 52-69. doi:10.1145/357332.357335.
[85] F. A. Agelet, F. P. Fontan and A. Formella, “Fast Ray Tracing for Microcellular and Indoor Environments,” IEEE Transactions on Magnetics, Vol. 33, No. 2, 1997, pp. 1484-1487.
[86] Z. Ji, B.-H. Li, H.-X. Wang, H.-Y. Chen and T. K. Sarkar, “Efficient Ray-Tracing Methods for Propagation Prediction for Indoor Wireless Communications,” IEEE Antennas and Propatation Magazine, Vol. 43, No. 2, 2001, pp. 41-49.
[87] C. Oestges and A. Paulraj, “Propagation into Buildings for Broad-Band Wireless Access,” IEEE Transactions on Vehicular Technology, Vol. 53, No. 2, 2004, pp. 521-526.
[88] Y. Ji, S. biaz, S. Wu and B. Qi, “Impact of Building Environment on the Performance of Dynamic Indoor Localization,” 8th Annual IEEE Wireless and Microwave Technology Conference, Clearwater, 4-5 December 2006.
[89] WaveTrend, “Wave Trend Personal Tag tg501,” 2012. http://www.wavetrend.net/downloads/information-sheets/TG501-0API-A4.pdf.