IEEE Signal Processing - May 2018 - 79

with the University of Maryland, College Park, from 2009 to
2010 and with Qualcomm Research and Development, San
Diego, California, from 2010 to 2014. Since 2015, she has been
with Origin Wireless Inc., Greenbelt, Maryland, as a chief scientist. Her current research interests include wireless communications and signal processing.
Qinyi Xu (qinyixu@umd.edu) received her B.S. (highest
honors) degree in information engineering from Southeast
University, Nanjing, China, in 2013. She is currently pursuing
her Ph.D. degree in the Department of Electrical and Computer Engineering, University of Maryland, College Park. Her
current research interests include signal processing and wireless communications.
Chen Chen (cc8834@umd.edu) received his B.S. and
M.S. degrees from the Department of Microelectronics, Fudan
University, Shanghai, China, in 2010 and 2013, respectively,
and his Ph.D. degree from the Department of Electrical and
Computer Engineering, University of Maryland, College Park,
in 2017. He is currently a research scientist with Origin Wireless
Inc., Greenbelt, Maryland. His research interests include biomedical signal processing and indoor localization.
Feng Zhang (fzhang15@umd.edu) received his B.S. and
M.S. degrees from the Department of Electronic Engineering
and Information Science, University of Science and Technology
of China, Hefei, in 2011 and 2014, respectively. He is currently
pursuing his Ph.D. degree in the Department of Electrical and
Computer Engineering, University of Maryland, College Park.
His research interests include time reversal communications,
wireless sensing, and indoor localization.
K.J. Ray Liu (kjrliu@umd.edu) was named a Distinguished
Scholar-Teacher of the University of Maryland, College Park, in
2007, where he is the Christine Kim Eminent Professor of
Information Technology. He was a recipient of the 2016 IEEE
Leon K. Kirchmayer Award, IEEE Signal Processing Society
2014 Society Award, and 2009 Technical Achievement Award.
He has won over a dozen best paper and invention awards.
Recognized by Web of Science as a highly cited researcher, he is
a fellow of the AAAS. He is the IEEE vice president-elect for
technical activities and has been president of the IEEE Signal
Processing Society and editor-in-chief of IEEE Signal
Processing Magazine. He is a Fellow of the IEEE.

[6] J. Xiong and K. Jamieson, "Arraytrack: A fine-grained indoor location system,"
in Proc. 10th USENIX Symp. Networked Systems Design and Implementation,
2013, pp. 71-84.
[7] Y. Zhao, "Standardization of mobile phone positioning for 3G systems," IEEE
Commun. Mag., vol. 40, no. 7, pp. 108-116, July 2002.
[8] G. Sun, J. Chen, W. Guo, and K. J. R. Liu, "Signal processing techniques in network-aided positioning: A survey of state-of-the-art positioning designs," IEEE
Signal Process. Mag., vol. 22, no. 4, pp. 12-23, July 2005.
[9] S. Sen, R. R. Choudhury, and N. Srihari, "SpinLoc: Spin Once to Know Your
Location," in Proc. 12th ACM Workshop Mobile Computing Systems and
Applications, New York, 2012, pp. 1-6.
[10] S. Sigg, S. Shi, F. Buesching, Y. Ji, and L. Wolf, "Leveraging RF-channel fluctuation for activity recognition: Active and passive systems, continuous and RSSIbased signal features," in Proc. ACM Int. Conf. Advances Mobile Computing and
Multimedia, 2013, pp. 43-52.
[11] K. Wu, J. Xiao, Y. Yi, D. Chen, X. Luo, and L. M. Ni, "CSI-based indoor
localization," IEEE Trans. Parallel Distrib. Syst., vol. 24, no. 7, pp. 1300-1309,
July 2013.
[12] J. Hightower, R. Want, and G. Borriello, "SpotON: An indoor 3D location
sensing technology based on RF signal strength," Dept. Computer Sci. Eng., Univ.
Washington, Seattle, WA, Tech. Rep. UW CSE 00-02-02, Feb. 2000.
[13] X. Li, K. Pahlavan, M. Latva-aho, and M. Ylianttila, "Comparison of indoor
geolocation methods in DSSS and OFDM wireless LAN systems," in Proc. 52nd
IEEE-VTS Fall Vehicular Technology Conf., 2000, vol. 6, pp. 3015-3020.
[14] N. Correal, S. Kyperountas, Q. Shi, and M. Welborn, "An UWB relative location system," in Proc. IEEE Conf. Ultra Wideband Systems and Technologies,
Nov. 2003, pp. 394-397.
[15] P. Steggles and S. Gschwind, "The ubisense smart space platform" in Proc. 3rd
Int. Conf. Pervasive Computing, 2005, pp. 73-76.
[16] B. Campbell, P. Dutta, B. Kempke, Y.-S. Kuo, and P. Pannuto, "Decawave:
Exploring state of the art commercial localization," Ann Arbor, vol. 1001, no. 4, pp.
48109, 2015.
[17] M. Youssef and A. Agrawala, "The Horus WLAN location determination system," in Proc. 3rd ACM Int. Conf. Mobile Systems, Applications, and Services,
New York, 2005, pp. 205-218.
[18] S. Sen, B. Radunovic, R. R. Choudhury, and T. Minka, "You are facing the
Mona Lisa: Spot localization using PHY layer information," in Proc. 10th ACM Int.
Conf. Mobile Systems, Applications, and Services, New York, 2012, pp. 183-196.
[19] D. Giustiniano and S. Mangold, "Caesar: carrier sense-based ranging in off-theshelf 802.11 wireless LAN," in Proc. 7th ACM Conf. Emerging Networking
Experiments and Technologies, 2011, pp. 10-21.
[20] S. Sen, D. Kim, S. Laroche, K.-H. Kim, and J. Lee, "Bringing CUPID indoor
positioning system to practice," in Proc. 24th Int. Conf. World Wide Web, 2015, pp.
938-948.
[21] P. Bahl and V. N. Padmanabhan, "Radar: An in-building RF-based user location and tracking system," in Proc. IEEE 19th Annu. Joint Conf. IEEE Computer
and Communications Societies, 2000, vol. 2, pp. 775-784.
[22] M. Kotaru, K. Joshi, D. Bharadia, and S. Katti, "SpotFi: Decimeter level localization using WiFi," in Proc. 2015 ACM Conf. Special Interest Group on Data
Communication, pp. 269-282.
[23] J. Gjengset, J. Xiong, G. McPhillips, and K. Jamieson, "Phaser: Enabling
phased array signal processing on commodity WiFi access points," in Proc.
20th ACM Annu. Int. Conf. Mobile Computing and Networking, 2014, pp.
153-164.
[24] S. Sen, J. Lee, K.-H. Kim, and P. Congdon, "Avoiding multipath to revive
inbuilding WiFi localization," in Proc. 11th ACM Annu. Int. Conf. Mobile Systems,
Applications, and Services, 2013, pp. 249-262.

References

[1] H. Liu, H. Darabi, P. Banerjee, and J. Liu, "Survey of wireless indoor positioning techniques and systems," IEEE Trans. Syst., Man, Cybern. C, vol. 37, no. 6, pp.
1067-1080, Nov. 2007.

[25] J. Xiong, K. Sundaresan, and K. Jamieson, "Tonetrack: Leveraging frequencyagile radios for time-based indoor wireless localization," in Proc. 21st ACM Annu.
Int. Conf. Mobile Computing and Networking, 2015, pp. 537-549.

[2] L. Dimitrios, J. Liu, X. Yang, R. R. Choudhury, V. Handziski, and S. Sen, "A
realistic evaluation and comparison of indoor location technologies: Experiences and
lessons learned," in Proc. 14th ACM Int. Conf. Information Processing Sensor
Networks, 2015, pp. 178-189.

[26] P. Castro, P. Chiu, T. Kremenek, and R. Muntz, "A probabilistic room location
service for wireless networked environments," in Proc. Ubicomp 2001: Ubiquitous
Computing, Springer, 2001, pp. 18-34.

[3] M. Youssef, A. Youssef, C. Rieger, U. Shankar, and A. Agrawala,
"Pinpoint: An asynchronous time-based location determination system," in Proc.
4th ACM Int. Conf. Mobile Systems, Applications, and Services, New York,
2006, pp. 165-176.
[4] R. J. Fontana and S. J. Gunderson, "Ultra-wideband precision asset location system," in Proc. IEEE Conf. Ultra Wideband Systems and Technologies, May 2002,
pp. 147-150.
[5] D. Niculescu and B. Nath, "VOR base stations for indoor 802.11 positioning," in
Proc. 10th ACM Annu. Int. Conf. Mobile Computing and Networking, New York,
2004, pp. 58-69.

[27] X. Wang, L. Gao, S. Mao, and S. Pandey, "Deepfi: Deep learning for indoor
fingerprinting using channel state information," in Proc. IEEE Wireless
Communications and Networking Conf., 2015, pp. 1666-1671.
[28] X. Wang, L. Gao, and S. Mao, "Phasefi: Phase fingerprinting for indoor localization with a deep learning approach," in Proc. IEEE Global Communications
Conf., 2015, pp. 1-6.
[29] S. Sen, B. Radunovic, R. Roy Choudhury, and T. Minka, "Precise indoor localization using PHY information," in Proc. 9th ACM Int. Conf. Mobile Systems,
Applications, and Services, 2011, pp. 413-414.
[30] Z. H. Wu, Y. Han, Y. Chen, and K. J. R. Liu, "A time-reversal paradigm for
indoor positioning system," IEEE Trans. Veh. Technol. (special section on Indoor

IEEE Signal Processing Magazine

|

May 2018

|

79



Table of Contents for the Digital Edition of IEEE Signal Processing - May 2018

Contents
IEEE Signal Processing - May 2018 - Cover1
IEEE Signal Processing - May 2018 - Cover2
IEEE Signal Processing - May 2018 - Contents
IEEE Signal Processing - May 2018 - 2
IEEE Signal Processing - May 2018 - 3
IEEE Signal Processing - May 2018 - 4
IEEE Signal Processing - May 2018 - 5
IEEE Signal Processing - May 2018 - 6
IEEE Signal Processing - May 2018 - 7
IEEE Signal Processing - May 2018 - 8
IEEE Signal Processing - May 2018 - 9
IEEE Signal Processing - May 2018 - 10
IEEE Signal Processing - May 2018 - 11
IEEE Signal Processing - May 2018 - 12
IEEE Signal Processing - May 2018 - 13
IEEE Signal Processing - May 2018 - 14
IEEE Signal Processing - May 2018 - 15
IEEE Signal Processing - May 2018 - 16
IEEE Signal Processing - May 2018 - 17
IEEE Signal Processing - May 2018 - 18
IEEE Signal Processing - May 2018 - 19
IEEE Signal Processing - May 2018 - 20
IEEE Signal Processing - May 2018 - 21
IEEE Signal Processing - May 2018 - 22
IEEE Signal Processing - May 2018 - 23
IEEE Signal Processing - May 2018 - 24
IEEE Signal Processing - May 2018 - 25
IEEE Signal Processing - May 2018 - 26
IEEE Signal Processing - May 2018 - 27
IEEE Signal Processing - May 2018 - 28
IEEE Signal Processing - May 2018 - 29
IEEE Signal Processing - May 2018 - 30
IEEE Signal Processing - May 2018 - 31
IEEE Signal Processing - May 2018 - 32
IEEE Signal Processing - May 2018 - 33
IEEE Signal Processing - May 2018 - 34
IEEE Signal Processing - May 2018 - 35
IEEE Signal Processing - May 2018 - 36
IEEE Signal Processing - May 2018 - 37
IEEE Signal Processing - May 2018 - 38
IEEE Signal Processing - May 2018 - 39
IEEE Signal Processing - May 2018 - 40
IEEE Signal Processing - May 2018 - 41
IEEE Signal Processing - May 2018 - 42
IEEE Signal Processing - May 2018 - 43
IEEE Signal Processing - May 2018 - 44
IEEE Signal Processing - May 2018 - 45
IEEE Signal Processing - May 2018 - 46
IEEE Signal Processing - May 2018 - 47
IEEE Signal Processing - May 2018 - 48
IEEE Signal Processing - May 2018 - 49
IEEE Signal Processing - May 2018 - 50
IEEE Signal Processing - May 2018 - 51
IEEE Signal Processing - May 2018 - 52
IEEE Signal Processing - May 2018 - 53
IEEE Signal Processing - May 2018 - 54
IEEE Signal Processing - May 2018 - 55
IEEE Signal Processing - May 2018 - 56
IEEE Signal Processing - May 2018 - 57
IEEE Signal Processing - May 2018 - 58
IEEE Signal Processing - May 2018 - 59
IEEE Signal Processing - May 2018 - 60
IEEE Signal Processing - May 2018 - 61
IEEE Signal Processing - May 2018 - 62
IEEE Signal Processing - May 2018 - 63
IEEE Signal Processing - May 2018 - 64
IEEE Signal Processing - May 2018 - 65
IEEE Signal Processing - May 2018 - 66
IEEE Signal Processing - May 2018 - 67
IEEE Signal Processing - May 2018 - 68
IEEE Signal Processing - May 2018 - 69
IEEE Signal Processing - May 2018 - 70
IEEE Signal Processing - May 2018 - 71
IEEE Signal Processing - May 2018 - 72
IEEE Signal Processing - May 2018 - 73
IEEE Signal Processing - May 2018 - 74
IEEE Signal Processing - May 2018 - 75
IEEE Signal Processing - May 2018 - 76
IEEE Signal Processing - May 2018 - 77
IEEE Signal Processing - May 2018 - 78
IEEE Signal Processing - May 2018 - 79
IEEE Signal Processing - May 2018 - 80
IEEE Signal Processing - May 2018 - 81
IEEE Signal Processing - May 2018 - 82
IEEE Signal Processing - May 2018 - 83
IEEE Signal Processing - May 2018 - 84
IEEE Signal Processing - May 2018 - 85
IEEE Signal Processing - May 2018 - 86
IEEE Signal Processing - May 2018 - 87
IEEE Signal Processing - May 2018 - 88
IEEE Signal Processing - May 2018 - 89
IEEE Signal Processing - May 2018 - 90
IEEE Signal Processing - May 2018 - 91
IEEE Signal Processing - May 2018 - 92
IEEE Signal Processing - May 2018 - 93
IEEE Signal Processing - May 2018 - 94
IEEE Signal Processing - May 2018 - 95
IEEE Signal Processing - May 2018 - 96
IEEE Signal Processing - May 2018 - 97
IEEE Signal Processing - May 2018 - 98
IEEE Signal Processing - May 2018 - 99
IEEE Signal Processing - May 2018 - 100
IEEE Signal Processing - May 2018 - 101
IEEE Signal Processing - May 2018 - 102
IEEE Signal Processing - May 2018 - 103
IEEE Signal Processing - May 2018 - 104
IEEE Signal Processing - May 2018 - 105
IEEE Signal Processing - May 2018 - 106
IEEE Signal Processing - May 2018 - 107
IEEE Signal Processing - May 2018 - 108
IEEE Signal Processing - May 2018 - 109
IEEE Signal Processing - May 2018 - 110
IEEE Signal Processing - May 2018 - 111
IEEE Signal Processing - May 2018 - 112
IEEE Signal Processing - May 2018 - 113
IEEE Signal Processing - May 2018 - 114
IEEE Signal Processing - May 2018 - 115
IEEE Signal Processing - May 2018 - 116
IEEE Signal Processing - May 2018 - 117
IEEE Signal Processing - May 2018 - 118
IEEE Signal Processing - May 2018 - 119
IEEE Signal Processing - May 2018 - 120
IEEE Signal Processing - May 2018 - 121
IEEE Signal Processing - May 2018 - 122
IEEE Signal Processing - May 2018 - 123
IEEE Signal Processing - May 2018 - 124
IEEE Signal Processing - May 2018 - 125
IEEE Signal Processing - May 2018 - 126
IEEE Signal Processing - May 2018 - 127
IEEE Signal Processing - May 2018 - 128
IEEE Signal Processing - May 2018 - 129
IEEE Signal Processing - May 2018 - 130
IEEE Signal Processing - May 2018 - 131
IEEE Signal Processing - May 2018 - 132
IEEE Signal Processing - May 2018 - Cover3
IEEE Signal Processing - May 2018 - Cover4
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201809
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201807
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201805
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201803
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_201801
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1117
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0917
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0717
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0517
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0317
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0117
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1116
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0916
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0716
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0516
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0316
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0116
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1115
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0915
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0715
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0515
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0315
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0115
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1114
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0914
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0714
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0514
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0314
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0114
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1113
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0913
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0713
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0513
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0313
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0113
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1112
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0912
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0712
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0512
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0312
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0112
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1111
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0911
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0711
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0511
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0311
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0111
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1110
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0910
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0710
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0510
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0310
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0110
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1109
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0909
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0709
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0509
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0309
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0109
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_1108
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0908
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0708
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0508
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0308
https://www.nxtbook.com/nxtbooks/ieee/signalprocessing_0108
https://www.nxtbookmedia.com