Cong Ling Lecturer Communications and Signal Processing Group Department of Electrical and Electronic Engineering Imperial College London South Kensington Campus London SW7 2AZ,  United Kingdom Office: 814 Tel: +44 (0)20 759-46214 Fax: +44 (0)20 759-46302 Email: c.ling (at) imperial.ac.uk

Biography
Cong Ling is currently a Lecturer in the Electrical and Electronic Engineering Department at Imperial College London. He received the Bachelor and Master degrees in Communications from Nanjing Institute of Communications Engineering, China in 1995 and 1997 respectively, and the Ph.D. degree in Electrical Engineering from Nanyang Technological University, Singapore in 2005. Before joining Imperial College, he had been on the faculties of Nanjing Institute of Communications Engineering and King’s College.

Dr. Ling is an Associate Editor of IEEE Transactions on Vehicular Technology. He has also served on the program committees of several international conferences including IEEE Information Theory Workshop (2006, 2009), Globecom, and ICC. He is a member of IEEE.

Research Interests
Dr. Ling's research spans the areas of wireless communications and networks, information theory and signal processing, with particular interests in

· Network information theory and coding, cooperative communication

· Lattice methods for communications and cryptography

· Distributed signal processing, compressive sensing and random matrix theory

· MIMO and MIMO-OFDM communication

· Coding (turbo and LDPC codes), iterative decoding

· Noncoherent and differential communication

· Spread spectrum, CDMA and multi-terminal communication

Our research is supported by Mobile VCE and EPSRC.

Publications

IEEE Copyright notice: (C) 20XX IEEE. Personal use of this material is permitted.

Journal Papers

1. Haishi Ning, Cong Ling, and Kin. K. Leung, “On the universality of sequential slotted amplify-and-forward strategy in cooperative communications,” submitted to IEEE Trans. Inform. Theory.

2. Cong Ling, “On the proximity factors of lattice reduction-aided decoding,” submitted.

3. Daniel Valderas, Cong Ling, and Pedro Crespo, “UWB portable printed monopole array design for MIMO communications,” Microwave and Optical Technology Letters, accepted.

4. Cong Ling, Wai Ho Mow, and Lu Gan, “Dual-lattice algorithm and partial lattice reduction for SIC-based MIMO detection,” IEEE J. Sel. Topics on Signal Processing, Dec. 2009.

5. Xiaofu Wu, Cong Ling, Ming Jiang, Enyang Xu, Chunming Zhao, and Xiaohu You, “New insights into weighted bit-flipping decoding Communications,” IEEE Trans. Commun., vol. 57, pp. 2177 – 2180, Aug. 2009.

6. Ying Hung Gan, Cong Ling, and Wai Ho Mow, “Complex lattice reduction algorithm for low-complexity full-diversity MIMO detection,” IEEE Trans. Signal Processing, vol. 57, pp. 2701-2710, July 2009.

7. Lu Gan and Cong Ling, “Computation of the Para-Pseudo Inverse for Oversampled Filter Banks: Forward and Backward Greville Formulas,” IEEE Trans. Signal Processing, vol. 56, pp. 5851 – 5860, Dec. 2008.

8. Cong Ling and Xiaofu Wu, “A back-iteration method for reconstructing chaotic sequences in finite-precision machines,” Circuits, Syst., Signal Processing, vol. 27, pp. 883 – 891, Oct. 2008.

9. Cong Ling, K. H. Li and A. C. Kot, “Performance of space-time codes: Gallager bounds and weight enumeration,” submitted to IEEE Trans. Inform. Theory, vol. 54, pp. 3592-3610, Aug. 2008.

10. Cong Ling, Xiaofu Wu, K. H. Li, and A. C. Kot, “Gallager bounds for noncoherent decoders in fading channels,” IEEE Trans. Inform. Theory, vol. 53, pp. 4605-4614, Dec. 2007.

11. Cong Ling, “Generalized union bound for space-time codes,” IEEE Trans. Commun., vol. 55, pp. 90-99, Jan. 2007.

12. Xiaofu Wu, Haige Xiang and Cong Ling, “New Gallager bounds in block fading channels,” IEEE Trans. Inform. Theory, vol. 53, pp. 684-694, Feb. 2007.

13. Xiaofu Wu, Haige Xiang, Cong Ling, Xiaohu You, and Shaoqian Li, “Bounds on the decoding error probability of binary block codes over noncoherent block AWGN and fading channels,” IEEE Trans. Wireless Commun., vol. 5, pp. 3193-3203, Nov. 2006.

14. Cong Ling, W. H. Mow, K. H. Li and A. C. Kot, “Multiple-Antenna differential lattice decoding,” IEEE J-SAC, vol. 23, pp.1821-1829, Sept. 2005.

15. Cong Ling, K. H. Li and A. C. Kot, "On decision-feedback detection of differential space-time modulation in continuous fading," IEEE Trans. Commun., vol. 52, pp. 1613-1617, Oct. 2004.

16. Cong Ling, K. H. Li and A. C. Kot, "Noncoherent sequence detection of differential space-time modulation," IEEE Trans. Inform. Theory, vol.49, pp. 2727-2734, Oct. 2003.

17. Cong Ling, K. H. Li, A. C. Kot, and Q. T. Zhang, "Multisampling decision-feedback linear prediction receivers for differential space-time modulation over Rayleigh fast fading channels," IEEE Trans. Commun., vol. 51, pp. 1214-1223, July 2003.

18. Guozhen Zang and Cong Ling, "Performance evaluation for bandlimited DS-CDMA systems based on simplified improved Gaussian approximation," IEEE Trans. Commun., vol. 51, pp. 1204-1213, July 2003.

19. Guozhen Zang and Cong Ling, "Family size of orthogonal Oppermann sequences," Electron. Lett., vol. 37, pp. 631-632, May 2001.

20. Ling Cong and Wu Xiaofu, "Design and implementation of an FPGA-based generator for chaotic frequency hopping sequences," IEEE Trans. CAS-I, vol. 48, pp. 521-532, May 2001.

21. Ling Cong and Li Shaoqian, "Chaotic spreading sequences with multiple access performance better than random sequences," IEEE Trans. CAS-I, vol. 47, pp. 394-397, Mar. 2000.

22. Ling Cong, Wu Xiaofu and Yi Xiaoxin, "On SOVA for nonbinary codes," IEEE Commun. Lett., vol. 3, pp. 335-337, Dec. 1999.

23. Xiaofu Wu, Cong Ling and Songgeng Sun, "Data-aided phase tracking detection of frequency-shifted DPSK signals with baseband frequency-drift compensation," Electron. Lett., vol.35, no.15, pp. 1222-1223, July 1999.

24. Ling Cong, Wu Xiaofu and Sun Songgeng, "A general efficient method for chaotic signal estimation," IEEE Trans. Signal Processing, vol. 47, pp. 1424-1427, May 1999.

25. Ling Cong and Sun Songgeng, "Chaotic frequency hopping sequences," IEEE Trans. Commun., vol. 46, pp. 1433-1437, Nov. 1998.

Conference Papers

1. Cong Ling and Wai Ho Mow, “A unified view of sorting in lattice reduction: From V-BLAST to LLL and beyond,” IEEE Inform. Theory Workshop 2009, Taormina, Italy.

2. Kezhi Li, Cong Ling and Lu Gan, “Statistical restricted isometry property of orthogonal symmetric Toeplitz matrices,” IEEE Inform. Theory Workshop 2009, Taormina, Italy.

3. Haishi Ning, Cong Ling and Kin Leung, “Active physical-layer network coding for cooperative two-way relay channels,” Second IEEE International Workshop on Wireless Network Coding, Rome, Italy, 2009.

4. Su Gao and Cong Ling, “Multi-dimensional nested lattice quantization for Wyner-Ziv coding,” ICC’09, Dresden, Germany.

5. Haishi Ning, Cong Ling and Kin Leung, “Near-optimal relaying strategy for cooperative broadcast channel,” ICC’09, Dresden, Germany.

6. Cong Ling and Wai Ho Mow, “On complex LLL algorithm for digital communications,” LLL+25 Conference, Caen, France, June-July 2007.

7. Xiaofu Wu, Cong Ling et al., “Towards understanding weighted bit-flipping decoding,” IEEE Int. Symp. Inform. Theory’07, Nice, France, June 2007.

8. Cong Ling and Nick Howgrave-Graham, “Effective LLL reduction for lattice decoding,” IEEE Int. Symp. Inform. Theory’07, Nice, France, June 2007.

9. Lu Gan and Cong Ling, “Computation of the dual frame: Forward and backward Greville formulas,” IEEE ICASSP 2007.

10. Cong Ling, Lu Gan, and Wai Ho Mow, “A dual-lattice view of V-BLAST detection,” IEEE Inform. Theory Workshop, Chengdu, China, Oct. 2006.

11. Cong Ling, “Gallager bounds for space-time codes in quasi-static fading channels,” IEEE Inform. Theory Workshop, Oct. 2006.

12. Cong Ling, “Approximate lattice decoding: Primal versus dual basis reduction,” IEEE Int. Symp. Inform. Theory’06, Seattle, July 2006.

13. Cong Ling, “Towards characterizing the performance of approximate lattice decoding in MIMO communications,” Int. Symp. Turbo Codes / Int. ITG Conf. Source Channel Coding’06, Munich, Germany, Apr. 2006.

14. Cong Ling, W. H. Mow, K. H. Li and A. C. Kot, “Differential lattice decoding in noncoherent MIMO communication,” ICC’05, Seoul, Korea, May 2005.

15. Cong Ling, K. H. Li and A. C. Kot, "Gallager bounds for space-time codes," IEEE Communication Theory Workshop 2004, Capri, Italy, May 2004.

16. Cong Ling, K. H. Li and A. C. Kot, "On Decision-Feedback Detection of Nondiagonal Differential Space-Time Modulation in Temporally Correlated Fading Channels," in Proc. ICC’03, Anchorage, AL, May 2003, pp. 2648–2652.

17. Cong Ling, K. H. Li and A. C. Kot, "Decision-feedback multiple symbol differential detection of differential space-time modulation in continuously fading channels," in Proc. ICASSP’03, Hong Kong, China, May 2003, pp. IV_45–IV_48.

18. Cong Ling and Xiaofu Wu, "Linear prediction receiver for differential space-time modulation over time-correlated Rayleigh fading channels," in Proc. ICC'2002, New York.

19. Xiaofu Wu, Cong Ling and Haige Xiang, "Despreading chip waveform design for coherent delay-locked tracking in DS/SS systems," in Proc. ICC'2002, New York.

Talks

1. Lattice decoding for digital communications: Where Minkowski meets Shannon, ENS Lyon, France, 2007; Cambrdige University, UK, 2008

2. Gallager bounds for single and multi-antenna codes in fading channels, Hong Kong University of Science and Technology, China, 2009.

PhD Students 

· Shuiyin Liu (Topic: lattice technique for MIMO/broadcast)

· Haishi Ning (Topic: cooperative networks)

· Su Gao (Topic: distributed source coding)

· Kezhi Li (Topic: compressed sensing)

· M. Constanza Estela Z. (Topic: interference management)

Information for prospective students

If you want to apply for admission, you are advised to apply through the PhD Admission of Electrical and Electronic Engineering. If you are interested in my research areas, please suggest Dr. Cong Ling as your future supervisor in the application form. You are recommended to pursue the MSc degree first (although this is not mandatory) if you have a Bachelor degree only. Feel free to contact me should you have any queries. I apologize that I am unable to reply to everyone due to the large number of emails. I will contact you if further information is needed.

Good applicants from China are advised to apply for the UK-China Scholarship of Excellence (中英优秀青年学者奖学金). Details here.

Academic Visitors

· Daniel Valderas, Assistant Professor, CEIT, Spain (2008)

· Xiaomei Fu, Associate Professor, Tianjin University, China (2009)

Awards

· Singapore Millennium Foundation (SMF) Award, 2002-2004.

Courses

· Communications II

· Information Theory