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Recent Journal Publications
A. Vashitha, C.L. Law, “A Novel E-DTDOA Based One-way Ranging Using UWB-IR with Unsynchronized Anchors”, accepted for publication in IEEE Transactions on Industrial Informatics, Mar 2020
M.A.H. Ansari and C.L. Law, “Grating Lobe Suppression of Multi-cycle IR-UWB Collaborative Radar Sensor in Wireless Sensor Network System”, accepted for publication in IEEE Sensors Letters, Jan 2020 (Digital Object Identifier: 10.1109/LSENS.2020.2964588)
M.A.H. Ansari and C.L. Law, “Beam-Pattern Analysis of Multi-Beam High Peak Power IR-UWB Transmitter Tag for Indoor Positioning and Tracking System”, accepted for publication in PIER B, Nov 2019
A. Vashitha, C.L. Law, “E-DTDOA based Localization for Wireless Sensor Networks with Clock Drift Compensation”, accepted for publication in IEEE Sensors Journal, Oct 2019
Y. Luo and C.L. Law, “Robust ultra-wideband direction finding in dense cluttered environments”, IEEE Transactions on Wireless Communications, Vol. 14, Issue 9, Sep 2015, pp 4772-4782
J. Xu, M. Ma and C.L. Law, “Cooperative angle-of-arrival position localization”, Measurement, Vol. 59, Jan 2015, pp 302-313
Y. Shen, C.L. Law, S. Hu and J. Xia, “IR-UWB-based Chipless RFID system”, Annals of Telecommunications, 2013, pp 1-9
K. Fu, C.L. Law and T.T. Thein, “Test Bed for Power Amplifier Behavioral Characterization and Modeling”, Measurement: Journal of the International Measurement Confederation, Vol. 46 (8), pp 2735-2745, 2013
K. Fu, C.L. Law and T.T. Thein, “Novel Neural Network Model of Power Amplifier Plus IQ Imbalances”, Progress In Electromagnetics Research B, Vol. 46, pp 177-192, 2013
Y.Z. Shen and C. L. Law, “A Low-Cost UWB-RFID System Utilizing Compact Circularly Polarized Chipless Tags”, IEEE Antennas and Wireless Propagation Letters, Accepted for publication, Oct 2012
Y. Luo and C.L. Law, “Indoor Positioning Using UWB-IR Signals in Presence of Dense Multipath with Path Overlapping”, IEEE Transactions on Wireless Communications, Vol. 11 (10), pp. 3734–3743, Aug. 2012
C. Xu and C.L Law, “TOA Estimation of UWB backscattering RFID tag with dual pulse modulation for clutter suppression”, Wireless Communications and Mobile Computing, Vol 12(10), pp 849-861, July 2012
Y.Z. Shen and C. L. Law, “Compact UWB bandpass filter with high suppression at 2.4 and 5.8 GHz”, IET Electronics Letters, Vol 48 (14), pp851-853, 2012
Y.Z. Shen and C. L. Law, “A two-port antenna for wireless-powered UWB-RFID tags”, Progress in Electromagnetics Research C, Vol. 27, pp 183-196, Feb 2012
Y. Shen and C.L. Law, “5.8-GHz suppressed UWB bandpass filter employing modified CRLH-TL of two and three unit cells”, Progress in Electromagnetics Research Letters, Vol. 29, pp 107-113, 2012
T.T. Thein, C.L. Law and K. Fu, “250 MHz to 30GHz, Unilateral Circuit model for InGaP/GaAs HBT”, Progress In Electromagnetics Research C, Vol. 26, 1-12, 2012
T.T. Thein, C.L. Law and K. Fu, “Frequency domain dynamic thermal analysis in GaAs HBT for power amplifier applications”, Progress In Electromagnetics Research, Vol. 118, 71-87, 2011
Chao Fang, Choi Look Law, James C.M. Hwang, and Jingjing Xia, “Design and Analysis of High-Voltage High-Efficiency Ultra-Wideband Pulse Synthesizer”, Progress In Electromagnetic Research C, Vol. 20, pp 187-201, 2011
J.X. Lee, Z.W. Lin, P.S. Chin and C.L Law, “Non-synchronized time difference of arrival localization scheme with time drift compensation capability”, IET Communications 5 (5), June 2011, pp 693-699
Jun Xu, Maode Ma and Choi Look Law, “Performance of time-difference-of-arrival ultra wideband indoor localization”, IET proceedings of Science, Measurement & Technology, Vol. 5, Issue 2, Mar 2011, pp. 46-53
Y. Zhou, C.L. Law, Y.L Guan and F. Chin, “Indoor Elliptical Localization Based on Asynchronous UWB Range Measurement”, IEEE Transactions on Instrumentation & Measurement, Vol. 60, No. 1, Jan 2011, pp 248-257
J. Xia, C.L. Law, Y. Zhou and K.S Koh, “3-5 GHz UWB impulse radio transmitter and receiver MMIC optimized for long range precision wireless sensor networks”, IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 12, Dec 2010, pp 4040-4051
Y. Zhou, Y.L Guan and C.L. Law, “Modified Phase-Only Correlator with Kurtosis-Based Amplified-Noise Suppression”, IEEE Transactions on Wireless Communications, Vol. 9, No. 11, Nov 2010, pp 3341-3345
C. Xu and C.L Law, “TOA Estimation for UWB backscattering RFID system with clutter suppression capability”, Eurasip Journal on Wireless Communications and Networking, Vol 2010, Article ID 753129, 14 pages
Jinging Xia and Choi Look Law, “Cascoded HBT pair: a new method of generating sub-nanosecond high-voltage impulses”, Microwave and Optical Technology Letters, Vo. 52, No 8, August 2010, pp 1683-1685
Y. Zhou, C.L. Law and F. Chin, “Construction of local anchor map for indoor position measurement system”, IEEE Transactions on Instrumentation & Measurement, Vol. 59, No. 7, July 2010, pp 1986-1988
C. F Gu, C. L. Law and W. Wu, “Time Domain IQ Imbalance Compensation for Wideband Wireless Systems”, IEEE Comms Letters, Vol 14, No. 6, June 2010, pp 539-541
S. Hu, Y. Zhou, C.L. Law and W. Dou, “Study
of a CPW-fed Monopole Antenna for Passive Chipless UWB-RFID
Localization System”, IEEE Transactions on Antennas &
Propagation, Vol 58, No 2, Feb 2010, pp 271-278
Chao Fang, Choi L Law, and James Hwang,
“High-Voltage High-Efficiency Ultra-Wideband Pulse Synthesizer”,
IEEE Microwave and Wireless Components Letters, Vol. 20, No 1,
Jan 2010, pp 49-51
Z. Zhang and C.L. Law, “Reply to “Comment on
“Short-Delay Multipath Mitigation Technique Based on Virtual
Multipath””, IEEE Antennas and Wireless Propagation Letters,
Vol. 8, 2009, pp1435-1435
Y. Shen, C.L Law, K.S Koh and S. Hu, “Active
ultra-wideband tag design for concrete debris tracking systems”,
Electronic Journal of Structural Engineering, Special Issue:
Sensor Network on Building Monitoring: from theory to real
application (2009), pp 58-65
S. Hu, W.B. Dou and C.L. Law, “A tapered slot
antenna with flat and high gain for ultra-wideband
applications”, Journal of Electromagnetic Waves and
Applications, Vol 23, Issue 5-6, 2009, pp723-728
Jingjing Xia, Choi L Law, Jisu
Jiang; “A novel 3-5GHz Active Matched Filter for Impulse Radio
Ultra-Wideband”, IEEE Microwave and Wireless Components Letters,
Vol 19, No. 7, July 2009, pp 458-460
Yizhu Shen, Choi Look Law and Zhongxiang Shen,
“A CPW-Fed Circularly Polarized Antenna for lower Ultra-Wideband
Applications”, Microwave and Optical Technology Letters, Vol.
51, No. 10, Oct 2009, pp 2365-2369
Q. Shi, Y.L Guan, Y. Gong and C.L. Law,
“Receiver design for multicarrier CDMA using frequency-domain
oversampling”, IEEE Transactions on wireless communications, Vol
9, No 5, May 2009, pp 2236-2241
Chi Xu and Choi L. Law, “Experimental
evaluation of UWB ranging performance for correlation and ED
receivers in indoor environments,” International Journal of
Hybrid Information Technology, vol. 2, no. 2, pp. 37-53,
April 2009.
J.X. Lee, Z.W. Lin, P.S.
Chin, and C.L. Law, “The Use of Symmetric Multi-Way Two Phase
Ranging to Compensate Time Drift in Wireless Sensor Network”,
IEEE Transaction on Wireless Communications, Vol 8, No 2, Feb
2009, pp613-616
S. Hu, C.L. Law and W. Dou, “A balloon-shaped
monopole antenna for passive UWB-RFID tag applications”, IEEE
Antennas and Wireless Propagation Letters, Vol 7, 2008, pp
366-368
S. Cui, K. C. Teh, K. H. Li, Y. L. Guan, and
C. L. Law, “Performance analysis of transmitted-reference UWB
systems with narrowband interference suppression”, Journal of
Wireless Communications and Mobile Computing, No. 9, Vol. 8, Aug
2009, pp 1081-1088
Chi. Xu, Choi L. Law, “Delay-Dependent
Threshold Selection for UWB TOA estimation”, IEEE Communication
Letters, Vol 12, No 5, May 2008, pp 380-382
B. Liang, E. Gunawan, C.L. Law, K.C Teh,
“Accurate bit-error rate evaluation for TH-PPM systems in
Nakagami fading channels using moment generating functions”,
IEICE Transactions on Communications, Vol.
E91B, No. 3, Mar 2008, pp
922-926
Hongtao Tian, Sanjay K. Bose, Choi Look Law
and Wendong Xiao, “Joint Routing and Flow
Rate Optimization in Multi-rate Ad Hoc Networks”, Computer
Networks, Vol. 52, No. 3, Feb 2008, pp 739-764
Jun Xu, Maode Ma and Choi Look Law, “Position
Estimation Using UWB TDOA Measurements”, IET proceedings of
Science, Measurement & Technology, Vol. 2, Issue 1, Jan 2008,
pp. 53-58
S. Hu, C.L. Law and W. Dou, “Petaloid antenna
for passive UWB-RFID tags”, IET Electronics Letters, Vol. 43,
No. 22, Oct 2007
Chao Fang, Choi L Law, and James Hwang, “A
3.1 – 10.6GHz Ultra-Wideband Low Noise Amplifier with 13dB Gain,
3.4dB Noise Figure and Consumes Only 12.9mW of DC Power”, IEEE
Microwave and Wireless Components Letters, Vol. 17, No. 4, pp.
295-297, Apr 2007
Z. Zhang, C.L. Law and E. Gunawan, “Multipath
Mitigation Technique Based on Partial Autocorrelation Function”,
Springer Netherlands - Wireless Personal Communication, Vol 41,
No 1, Apr 2007, pp 145-154
S. Hu, H. Chen, C. L. Law, Z. Shen, L. Zhu,
W. Zhang, and W. Dou, "Backscattering Cross Section of Ultra
Wideband Antennas”, IEEE Antennas and Propagation Letters, Vol.
6, pp. 70-73, Mar 2007
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Recent Conference Proceedings
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M. Ansari and C.L law, “Beamforming UWB-IR transmitter for NLOS indoor positioning and tracking application”, 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 – Proceedings, pp 1-4
A. Vashistha, A. Gupta and C.L Law, “Self calibration of the anchor nodes for UWB-IR TDOA based indoor positioning system”, IEEE World Forum on Internet of Things, WF-IoT 2018 – Proceedings 2018 – January, pp 688-693
R.W.C Ling, A Gupta, A. Vashistha and C.L Law, “High precision UWB-IR indoor positioning system for IoT applications”, IEEE World Forum on Internet of Things, WF-IoT 2018 – Proceedings 2018 – January, pp 688-693
M. Ansari, M. Sharma and C.L. Law, “High Peak Power UWB-RFID Transmitter Tag for Long Range Applications”, 2017 Progress in Electromagnetics Research Symposium (PIERS), Nov 2017. (Best Student Paper Award)
K. Gururaj, A.K Rajendra, Y. Song, C.L. Law and G.F Cai, “Real-Time Identification of NLOS Range Measurements for Enhanced UWB Localization”, 8th International Conference on Indoor Positioning and Indoor Navigation (IPIN), Sep 2017
Y. Song, CX Wang, W.P Tay and C.L. Law, “Grid-Based Belief Propagation”, 8th International Conference on Indoor Positioning and Indoor Navigation (IPIN), Sep 2017
Y. Song, W.P Tay and C.L. Law, “Robust Decentralized Localization in Impulsive Noise”, 8th International Conference on Indoor Positioning and Indoor Navigation (IPIN), Sep 2017
M. Ansari, C.L. Law, “High voltage high efficiency UWB pulse generator for precision localization wireless sensor network”, 2016 International Symposium on Integrated Circuits, Dec 2016, pp 1-4
A. Vashistha, R. Choi and C.L. Law, “A TDOA measurement technique for asynchronous indoor localization system using UWB-IR”, 2016 International Conference on Indoor Positioning and Indoor Navigation, Oct 2016, Session 11, Paper 211_WIP
H.T Dinh, C.L. Law and R. Choi, “3-D localisation system using 4 anchors employing ultra-wideband impulse radio”, 2015 International conference on Information, Communications and Signal Processing (ICICS), Dec 2015, pp 1-5
Y. Shen and C.L. Law, “A compact wideband filter with absorption and sharp rejection”, IEEE Asia-Pacific Conference on Antennas and Propagation Society, APCAP-2015 Proceedings, Art no. 7374454, pp 470-471, 2015
C.L. Law, “Portable low-power IR-UWB system”, Proceedings of the first IEEE world forum on Internet of Things, Seoul, March 2014
Y. Shen and C.L. Law, “A brief review of wideband circularly-polarized planar antenna design”, IEEE Asia-Pacific Conference on Antennas and Propagation Society, APCAP-2012 Proceedings, Art no. 6333145, pp 35-36, 2012
Y. Zhou, C.L Law and J. Xia, “Ultra low-power UWB-RFID system for precise location-aware applications”, IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2012, Art No. 6215480, pp 154-158, 2012
T.T. Thein, C.L. Law, K. Fu and A. Aung, “Highly efficient compact size 0.7W broad bandwidth power amplifier”, IEEE International Symposium on Circuits and Systems, ISCAS 2012, Art No. 6271723, pp 2187-2190, 2012
Y. Shen and C.L. Law, “A microstrip-fed quasi-spiral circularly polarized ultra-wideband antenna”, IEEE Antennas and Propagation Society, AP-S International Symposium Digest, Art no. 5996570, pp 1463-1466, July 2011
Y. Zhou, C.L Law and J. Xia, “Ultra low-power RFID tag with precision localization using IR-UWB”, IEEE MTT-S International Microwave Symposium Digest, Art No. 5972647, June 2011
J. Xia, C.L. Law and Y. Zhou, “Synthesis and design of novel active MMIC matched fitlers for ultra-wideband impulse radio”, IEEE MTT-S International Microwave Symposium Digest, Art No. 5972586, June 2011
Yuan Zhou, Choi Look Law, Jingjing Xia and Kee Siang Koh, “Long Range UWB Localization System: from Design to Measurement”, Proceedings of the IEEE International Conference on Ultra- Wideband, Nanjing, Art. No. 5616891, pp 501-504, Sep. 2010,
Y. Luo and C.L. Law, “A Least-squares Algorithm for Multipath Estimation Using an UWB-IR Link”, Proceedings of WCNC 2010, Sydney, Article No 5506321, Apr 2010
Xia, J.J, Law, Koh, K.S., Zhou, Y., Fang, C. “A 3-5 GHz impulse radio Transceiver IC optimized for precision localization at longer ranges”, IEEE MTT-S, Art No 5517396, May 2010, pp 169-172
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