Education
· 2007 - 2011 Ph.D., Electrical and Electronic Engineering, University of Hong Kong, Hong Kong, China.
· 2001 - 2005 B.Eng., Electrical and Electronic Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, China.
Selected Projects
  1. Cooperative Localization in Wireless Sensor Networks

    · This research aims to develop a cooperative algorithm for local parameter estimation with guaranteed convergence property. We considered a linear stochastic model and proposed a cooperative algorithm gSPAWN based on belief propagation. We derived technique conditions under which the algorithm was guaranteed to converge. We also provided a case study on applying the algorithm in localization of wireless sensor networks.

  2. Tracking and Navigation with Asynchronous Receivers in GPS-free Scenarios

    · This research aims to study robust methods for self-localization of sensors in urban environments without the use of GPS. We carried out theoretical analysis for the tracking algorithms using signal-of-opportunity (SOOP), which provides a design guidance for parameter selections in algorithm development. To verify the performance of the proposed algorithm in practice, we implemented the receiving prototype on software-defined radio testbeds. We also carried out the investigation of integrating SOOP and IMU measurements.

Publications
Book Chapters
  1. Mei Leng and Wee Peng Tay, "Fundamental limits of self-localization for cooperative robotic platforms using signals of opportunity," Cooperative Robots and Sensor Networks, New York: Springer, 2015.
Preprints
  1. Mei Leng, Wee Peng Tay, François Quitin, Chi Cheng, Sirajudeen Gulam Razul, and Chong Meng Samson See, “Joint Localization and Synchronization Using Space-Based SOOP: Theory and Experiments,” submitted to, IEEE Trans. on Wireless Communications. [pdf]
  2. Wuqiong Luo, Wee Peng Tay, and Mei Leng, “On the universality of Jordan centers for estimating infection sources in tree networks,” submitted to, IEEE Trans. Information Theory. [pdf]
Journals
  1. Wenjie Xu, Francois Quitin, Mei Leng, Wee Peng Tay, and Siraj. G. Razul, “Distributed localization of a RF target in NLOS environments,” IEEE Journal on Selected Areas in Communications, vol.33, no.7, pp.1317- 1330, July 2015. [pdf]
  2. Mei Leng, Wee Peng Tay, Tony Q.S. Quek, and Hyundong Shin, “ Distributed Local Linear Pa- rameter Estimation Using Gaussian SPAWN”, IEEE Trans. on Signal Processing, vol. 63, no. 1, pp. 244-257, Jan 2015. [pdf]
  3. Mei Leng, Wee Peng Tay, Chong Meng S. See, Siraj G. Razul, and Moe Z. Win, “Modified CRLB for cooperative geolocation of two devices using signals of opportunity,” IEEE Trans. on Wireless Communications, vol. 13, no. 7, pp. 3636-3649, Jul. 2014. [pdf]
  4. Wuqiong Luo, Wee Peng Tay, and Mei Leng, “How to identify an infection source with limited observations,” IEEE Journal of Selected Topics in Signal Processing, vol. 8, no. 4, pp. 586-597, Aug. 2014. [pdf]
  5. Wuqiong Luo, Wee Peng Tay, and Mei Leng, “Identifying infection sources and regions in large networks”, IEEE Trans. on Signal Processing, Vol. 61, no. 11, pp. 2850-2865, June 2013. [pdf]
  6. Mei Leng and Yik Chung Wu, “Distributed clock synchronization for wireless sensor networks using belief propagation,” IEEE Trans. on Signal Processing, Vol. 59, no. 11, pp. 5404-5414, Nov. 2011.
  7. Mei Leng and Yik Chung Wu, “Low complexity maximum likelihood estimators for clock synchro- nization of wireless sensor nodes under Exponential delays,” IEEE Trans. on Signal Processing, Vol. 59, no. 10, pp. 4860-4870, Oct. 2011.
  8. Mei Leng and Yik Chung Wu, “On clock synchronization algorithms for wireless sensor networks with unknown delay”, IEEE Trans. on Vehicular Technology, 59(1), pp.182-190, Jan. 2010.
Conferences
  1. Mei Leng, Lei Lei, Sirajudeen Gulam Razul, and Chong Meng Samson See, “Joint Synchronization and Localization using Iridium Ring Alert Signal”, In Proceeding of IEEE Information, Communi- cations and Signal Processing (ICICS) 2015 10th International Conference on, pp. 1-5, Dec. 2015.
  2. Mei Leng, Sirajudeen Gulam Razul, Chong Meng Samson See, Wee Peng Tay, Chi Cheng, and Francois Quitin, ”Joint Navigation and Synchronization Using SOOP in GPS-Denied Environments: Algorithm and Empirical Study,” In Sensor Signal Processing for Defence (SSPD) 2015, pp.1-5, 9-10 Sept. 2015.
  3. Wuqiong Luo, Wee Peng Tay, Mei Leng, and M. K. Guevara, “On the universality of the Jordan center for estimating the rumor source in a social network,” In Proceeding of IEEE International Conference on Digital Signal Processing (DSP), Singapore, Jul. 2015.
  4. Wenjie Xu, Francois Quitin, Mei Leng, Wee Peng Tay and Sirajudeen G. Razul, “Distributed Local- ization of a Non-cooperative RF Target in NLOS Environments,” In Proceeding of The 17th International Conference on Information Fusion (FUSION 2014), Salamanca, Spain, Jul., May 2014.
  5. Mei Leng, Wee Peng Tay, Chong Meng S. See, and Siraj Gulam Razul, “Fundamental limits for location and velocity estimation using asynchronous beacons,” In Proceeding of IEEE Wireless Communications and Networking Conference (WCNC), Shanghai, China, April 2013.
  6. Mei Leng, Wee Peng Tay, C.M.S. See, and S. Gulam Razul, “GPS-free localization using asynchronous beacons,” In Proceeding of IEEE International Conference on Mobile Ad-hoc and Sensor Networks, Invited paper, Chengdu, China, Dec. 2012.
  7. Mei Leng, Wee Peng Tay, and Tony Q.S. Quek, “Cooperative and distributed localization for wireless sensor networks in multipath environments”, In Proceeding of IEEE Acoustics, Speech and Signal Processing (ICASSP) International Conference on, pp. 3125-3128, March 2012.
  8. Mei Leng, Wee Peng Tay, and Tony Q.S. Quek, “Cooperative and distributed localization for wireless sensor networks in multipath environments”, In Proceeding of IEEE Information, Communications and Signal Processing (ICICS) 2011 8th International Conference on, pp. 1-5, Dec. 2011.
  9. Mei Leng and Yik Chung Wu, “Localization of Wireless Sensor Nodes with erroneous anchors via EM algorithm”, In Proceedings of IEEE Global Communications Conference (GlobeCom), Miami, Florida, USA, Dec. 2010.
  10. Mei Leng and Yik Chung Wu, “On joint synchronization of clock offset and skew under exponential delay”, In Proceedings of IEEE International Symposium on Circuits and Systems (ISCAS), Paris, France, June. 2010.
  11. Mei Leng and Yik Chung Wu, “Low complexity clock synchronization algorithm for wireless sensor networks with unknown delay”, In Proceedings of IEEE conference on Wireless Communications & Networking Conference (WCNC), Budapest, Hungary, pp, 226-230, April. 2009.