Ling Cheng
IEEE ZA ITSC Vice-chair Dr. Ing., SMIEEE

Full Professor
Optical Communication Laboratory
 Centre for Telecommunications Access and Services
School of Electrical and Information Engineering
University of the Witwatersrand

Teaching:  Go to My Home Page for Teaching Go to My ResearchGate
 Go to My GoogleScholar
Research Activities:  
Telecommunications
 Artificial Intelligence
Email: ling.cheng@wits.ac.za Tel: 011-7177228 Office: West Campus, Chamber of Mines Building, CM4 380
  • Senior Member of IEEE
  • Vice-chair of IEEE South African Information Theory Chapter
  • Associate Editor - IEEE Access
  • Associate Editor - ITU/TUP Intelligent and Converged Networks
  • Specialist Editor – Communications and Signal Processing, SAIEE Africa Research Journal
  • Co-Chair - 3rd IEEE African Winter School on Information Theory and Communications
  • TPC Co-Chair - 10th IEEE International Conference on Communications, Control, and Computing
    Technologies for Smart Grids (SmartGridComm 2019)
  • Co-Chair -  IEEE SA ITSC CfT Workshop on Visible Light Communications and Its Applications in Mining Industry, 2018
  • TPC Co-Chair - Smart Communications Systems, The International Symposium on Networks, Computers and Communications, 2018
  • Chair of IEEE SA ITSC CfT Workshop on Visible Light Communications and Its Applications, 2016
  • General Co-Chair of IEEE Second African Winter School on Information Theory and Communications, 2015
  • Member of IEEE ISPLC 2013 Local Committee
  • Founding Editor-in-chief of Wits EIE Newsletter, The Node. Alumni liaison.
  • Memeber of Executive Committee, School of Electrical and Information Engineering, University of the Witwatersrand
  • Session Chair of IEEE International Symposium on Power Line Communications and its Applications 2013
 Research  Interests: 
  • Internet of Things for Smart Cities
  • Visible light communications
  • Power-line communications
  • Network information theory
  • Heuristic algorithm in Artificial Intelligence
  • Pattern recognition
  • Insertion/deletion error correction
  • Single machine scheduling
Research Projects:
  1. SA-China NRF-MOST visible light communication - Wits/Tsinghua Univerisity, 2018-2020.
  2. Integrated deep mining communication system using power cables - Wits/Tsinghua University, China, 2018-2020.
  3. TIA Seed Fund Project, 2018-2019.
  4. Hybrid visible light communication for Internet industry (Research Institute of Tsinghua University in Shenzhen, China), 2017-2019.
  5. NRF Incentive, 2015-2020.
  6. SA-China NRF-MOST visible light communication and power line communication, 2015-2017.
  7. ICASA on Spectrum Management and IMT-Advanced Interference Mitigation Techniques, 2011-2015.
  8. Wits/CSIR Smart Networks, 2020-present.

DVC Research Celebration
 
1st IEEE Seminar on Future Directions in Information Theory and Communications
2nd African Winter School on Information Theory and  Communications, Kruger National Park


Research Team

IEEE ZA ITSC CfT Workshop on Visible Light Communications and Its Applications, Johannesburg


Power-Line Communication and Visible Light Communication Laboratory

Medical Imaging Processing and Analysis, Computer Aided Diagnosis and Deep Learning

Channel Modeling

Free space optical communications with lasers - Mitch Cox (mitch@enox.co.za):
  • Former students
  1. Reevana Balmahoon, PhD., 2015. Thesis title: Security for Correlated Sources across Wiretap Network.
  2. Ayokunle Damilola Familua, PhD., 2017. Thesis title: Classification and modeling of power line nise using machine learning techniques.
  3. Mitch Cox, PhD. Thesis title: Improving the resilience of free-space optical links using structured modes of light.
  4. Kennedy Ifeh, MSc., 2012. Thesis title: Transmit-power control for cognitive radio networks: challenges, requirements and options.
  5. Ayokunle Damilola Familua, MSc., 2013, Thesis title: Noise modeling for standard CENELEC A-band power line communication channel.
  6. Benji Sim, MSc., 2013. Thesis title: A Modified belief-propagation decoder for the parallel decoding of product codes.
  7. Sibonginkosi Ntuli, MSc., 2013. Thesis title: Bit-flipping for product code decoding.
  8. Waqar Saeed, MSc., 2014. Thesis title: Insertion/Deletion Error Correction using Path Pruned Convolutional Codes and Extended Prefix Codes.
  9. Mpendulo Ndlovu, MSc., 2014. Thesis title: A permutation coding and MFSK-OFDM scheme for power-line communication.
  10. Radu-Ionut Constantinescu, MSc., 2015. Thesis title: A Machine Learning Approach to DNA Shotgun Sequence Assembly.
  11. Ashton Hudson, MSc., 2016. Thesis title: Applicability of Network Coding with Location Based Addressing over a Simplified VANET Model.
  12. Yves-Francois Rivard, MSc., 2016. Thesis title: A time diversity scheme by using fountain codes for narrowband power-line communications.
  13. Emmanuel Nkosi, MSc., 2017. Thesis title: Software defined networking controller-plane workload forecast using an artificial neural network model.
  14. Ryan Strange, MSc., 2017. Thesis title: Discrete Flower Pollination Algorithm for solving the symmetric Traveling Salesman Problem.
  15. Natasha Zlobinsky, MSc., 2017. Thesis title: Comparative Investigation into the Performance of Heuristic Algorithms in the Solution of Single Machine Scheduling Problems.
  16. Daniel Holmes, MSc. 2018. Thesis title: Semi-hidden Markov Models for Visible Light Communication Channels.
  17. Shamin Achari, MSc. 2018. Thesis title: Correction of Synchronisation Errors for On-off-keying Visible Light Communication Using Self Synchronising Serial TransmissionProtocol.
  18. Daniel Obinna Onwuatuelo, MSc. 2018. Thesis title: Joint Decoding of Parallel Power Line Communication and Visible Light Communication Systems.
  19. Christian Kamwangala, MSc. 2018. Thesis title: Optimal Transmitter Power Control for Indoor RGB-based Visible Light Communication.
  20. Alice Yang, MSc, 2019. Thesis title: Long Bone Fracture Detection using Arti cial Neural Network based on Line and Contour Features of X-ray Images.
  • Current students
  1. Ellen de Mello Koch, PhD. Deep learning algorithms.
  2. Kagiso Rapetswa, PhD. Cognitive Radio Networks.
  3. Mariah Shimaponda, PhD. Visible light communications.
  4. Alice Yang, PhD. Pattern recognition - classification.
  5. Ibrahim Kolade, PhD. Visible light communications.
  6. Waheed Ullah, PhD. Non-binary LDPC codes for 5G.
  7. Shamin Achari, PhD. Watermark codes.
  8. Daniel Obinna Onwuatuelo, PhD. Visible light communications. (*)
  9. Emmanuel Koomson Ramaru, PhD. Smart Grids.
  10. Kayode Emmanuel Adetunji, PhD. Smart Grids.
  11. Roland  Niwareeba, PhD. Visible light communications.
  12. Sive Baartman, MSc. Heuristic algorithm.
  13. Dhruti Dheda, MSc. Pattern Recognition Techniques for Water Quality Control.
  14. Conrad Haupt, MSc. Parallel processing and source coding.
  15. Benjamin Rosen, MSc. Visible light communications.
  16. Tuhafeni Erastus, MSc. Power line communications.
  17. Molawa Ngoetjana, MSc. Power-line communications and SKA.
  18. Bradley Williams, MSc. Visible light communications.
  19. Lonwabo Rooibaard, MSc, Heuristic algorithms for WSN.
  20. Bradd Bonhomme, MSc. Combined Modulation and Coding Techniques for Visible Light Communication.
  21. Kiren Singh, MSc. Block chain and ICT.
  22. Jandre Albertyn, MSc. Heuristic algorithms.
  23. Ally Yusuf, MSc. Artificial Intelligence.
  24. Anlo van Wyk, MSc. Deep Learning.
  • Publications in journals
  1. L. Cheng* and H. C. Ferreira, "Pruned convolutional codes and Viterbi decoding using the Levenshtein distance metric applied to asynchronous noisy channels", Transactions of the SAIEE, vol. 97, no. 2, pp. 140-145, June, 2006, ISBN 1991-1696. (DHET, EI)
  2. K. Ouahada, T. G. Swart, H. C. Ferreira and L. Cheng*, "Binary permutation sequences as subsets of Levenshtein codes, spectral null codes, run-length limited codes and constant weight codes," Designs, Codes and Cryptography, vol. 48, no. 2, pp. 141-154, August 2008, ISBN 0925-1022. (ISI) (IF: 1.1114)
  3. H. C. Ferreira, K. A. S. Abdel-Gha ffar, L. Cheng*, T. G. Swart and K. Ouahada, "Moment balancing templates: constructions to add insertion/deletion correction capability to error correcting or constrained codes," IEEE Transactions on Information Theory, vol. 55, no. 8, pp. 3494-3500, August 2009, ISSN 0018-9448. (ISI) (IF: 2.679)
  4. L. Cheng*, H. C. Ferreira and K. Ouahada, "Moment balancing templates for spectral null codes," IEEE Transactions on Information Theory, vol. 56, no. 8, pp. 3749-3753, August 2010, ISSN 0018-9448. (ISI)(IF: 2.679)
  5. K. A. S. Abdel-Ghaff ar, H. C. Ferreira and L. Cheng, "Correcting deletions using linear and cyclic codes ," IEEE Transactions on Information Theory, vol. 56, no. 10, pp. 5223-5234, October 2010, ISSN 0018-9448. (ISI)(IF: 2.679)
  6. L. Cheng*, H. C. Ferreira and I. Broere, "Moment balancing templates for (d,k) constrained codes and run-length limited sequences," IEEE Transactions on Information Theory, vol. 58, no. 4, pp. 2244-2252, April 2012, ISSN 0018-9448. (ISI)(IF: 2.679)
  7. K. Ouahada, L. Cheng* and H. C. Ferreira, "A Comparative study on the distance-optimality for distance-preserving mappings constructions with cyclic-shift prefix technique," Transactions of the SAIEE, 2012, ISBN 1991-1696. (DHET, EI)
  8. B. Marques, B. Sim and L. Cheng*, "Spatial-spectral watermarking scheme for JPEG steganography," Transactions of the SAIEE, 2013, ISBN 1991-1696. (DHET, EI)
  9. B. Cheng, L. Cheng* and L. Jiang, "Typhoon economic loss prediction in China by applying general regression neural network and hierarchical cluster analysis," Journal of Disaster Research, vol. 9, no. 1, pp. 42-47, 2014, ISBN 1881-2473. (Scopus, EI)
  10. B. Cheng and L. Cheng*, "Note on "Single-machine due-window assignment and scheduling with resource allocation, aging effect, and a deteriorating rate-modifying activity'', Computers & Industrial Engineering, vol. 78, December 2014, pp. 320–322, ISBN 0360-8352. (ISI)(IF: 3.442)
  11. K. Ogunyanda, A.D. Familua, T.G. Swart, H.C. Ferreira, and L. Cheng, "Evaluation of mixed permutation codes in PLC channels, using Hamming distance profile'', Telecommunication Systems, DOI: 10.1007/s11235-016-0224-9, vol. 65, no. 1, pp. 169–179,  May 2017. ISBN 1018-4864. (ISI)(IF: 1.527)
  12. D. Smith, T. G. Swart, H. C. Ferreira, H. Abdel-Ghaffar and L. Cheng, "Interleaved constrained codes with markers correcting bursts of insertions or deletions", IEEE Communications Letters, DOI: 10.1109/LCOMM.2017.2649492, vol. 21, no. 4, pp. 702-705, April 2017. ISSN: 1089-7798. (ISI)(IF: 2.723)
  13. A.D. Familua and L. Cheng*, "A Semi-Hidden Fritchman Markov Modeling of Indoor CENELEC A Narrowband Power Line Noise based on Signal Level Measurements", AEUE - International Journal of Electronics and Communications vol. 74,  pp. 21--30, April 2017. (ISI)(IF: 2.115)
  14. T. Bo, H.Y. Zhu, H.W. Gong and L. Cheng*, "Application of Machine Learning in Chinese Text Categorization for Telemedicine," China Digital Medicine: Telemedicine and Teaching, vol. 12, no. 3, pp. 79-82, March 2017. ISSN 1673-7571.
  15. A.R. Ndjiongue, H.C. Ferreira, J. Song, F. Yang and L. Cheng, "Hybrid PLC-VLC Channel Model and Spectral Estimation Using a Non-Parametric Approach'', Transactions on Emerging Telecommunications Technologies, Wiley, vol. 28, no. 12, pp. 1-13, July 2017. ISBN 2161-3915. (ISI)(IF: 1.606)
  16. Cheng B. and L. Cheng*, "Single machine slack due-window scheduling with linear resource allocation, aging effect, and a deteriorating rate-modifying activity," International Journal of Applied Mathematics, vol. 30, no. 5, pp. 375–386, 2017.
  17. N. Zlobinsky and L. Cheng*, "SAM: A meta-heuristic algorithm for single machine scheduling problems," Transactions of the SAIEE, vol. 109, no. 1, pp. 58-68, 2018. ISBN 1991-1696. (DHET, EI)
  18. A.D. Familua and L. Cheng*, "First and second-order semi-hidden Fritchman Markov models for a multi-carrier based indoor narrowband power line communication system", Physical Communication, vol. 29, pp. 55-66, 2018. (ISI)(IF: 1.522)
  19. M. P. J. Lavery, M. M. Abadi, R. Bauer, G. Brambilla, L. Cheng, M. A. Cox, A. Dudley, A. D. Ellis, N. K. Fontaine, A. E. Kelly, C. Marquardt, S. Matlhane, B. Ndagano, F. Petruccione, R. Slavík, F. Romanato, C. Rosales-Guzmán, F. S. Roux, K. Roux, J. Wang and A. Forbes, "Tackling Africa's digital divide", Nature Photonics, vol.12, pp. 249–252, May 2018. (ISI)(IF: 37.852)
  20. C. Kamwangala, M. A. Cox and L. Cheng*, "Transmitter Power Control for a Multi-Carrier Visible Light Communication System'', Transactions on Emerging Telecommunications Technologies, Wiley, 10.1002/ett.3453. ISBN 2161-3915. (ISI)(IF: 1.606) link
  21. B. Cheng and L. Cheng*, "Single Machine Slack Due-window Scheduling with Linear Resource Allocation and Position-dependent Processing Times," International Journal of Applied Mathematics, vol. 31, no. 5, pp. 637-647, 2018. 
  22. B. Cheng and L. Cheng*, "Single Machine Slack Due-Window Assignment and Scheduling of Linear Time-Dependent Deteriorating Jobs and a Deteriorating Maintenance Activity," Open Access Library Journal, vol. 10, no. 5, 2018.
  23. T. Wang, F. Yang, L. Cheng and J. Song, "Spectral-Efficient Generalized Spatial Modulation Based Hybrid Dimming Scheme with LACO-OFDM in VLC", IEEE Access, vol. 6, pp.41153-41162, June 2018. (ISI)(IF: 4.098)
  24. M. Cox M., C.R. Rosales-Guzman, L. Cheng, and A. Forbes, "Spatial Mode Diversity for Robust Free-Space Optical Communications", Physical Review Applied, vol. 10, no. 2, August, 2018. (ISI)(IF: 4.782)
  25. Y. Sun, F. Yang and L. Cheng, "An Overview of OFDM-Based Visible Light Communication Systems from the Perspective of Energy Efficiency versus Spectral Efficiency," IEEE Access. (ISI)(IF: 4.098)
  26. Y. Rivard and L. Cheng*, "Time Diversity Scheme and Adaptive Signal Clipping With Blanking Applied to G3 Systems for Narrowband Power-line Communications," International Journal of Communication Systems,2019. (ISI)(IF: 1.717) link
  27. M. A. Cox, E. Toninelli, L. Cheng, M. Padgett, A. Forbes, "A high-speed, wavelength invariant, single-pixel wavefront sensor with a digital micromirror device," IEEE Access, DOI: 10.1109/ACCESS.2019.2925972. (ISI)(IF: 4.098). arXiv identifier 1901.07201
  28. M. A. Cox, L. Maqondo, R. Kara, G. Milione, L. Cheng, A. Forbes, "The Resilience of Hermite- and Laguerre-Gaussian Modes in Turbulence," Journal of Lightwave Technology. arXiv identifier 1901.07203 (ISI)(IF: 3.652)
  29. L. Cheng and H.C. Ferreira, "Bit Flipping Moment Balancing Schemes for Insertion, Deletion and Substitution Error Correction," arXiv identifier 1901.07769
  30. D. G. Holmes, M. Shimaponda-Nawa, A. D.Familua, A. M. Abu-Mahfouz, L. Cheng*, "Modelling Noise and Pulse Width Modulation Interference in Indoor Visible Light Communication Channels," AEUE - International Journal of Electronics and Communications. (ISI)(IF: 2.853) arXiv identifier 1902.07182 
  31. A. Yang and L. Cheng, "Long-Bone Fracture Detection using Artificial Neural Networks based on Line Features of X-ray Images," arXiv identifer 1902.07458 
  32. A. Yang and L. Cheng, "Long-Bone Fracture Detection using Artificial Neural Networks based on Contour Features of X-ray Images," arXiv identifer 1902.07897
  33. Wang T., Yang F., L. Cheng and Song J. (2019): "Spectral-Ecient Hybrid Dimming Scheme for Indoor Visible Light Communication: A Subcarrier Index Modulation Based Approach," IEEE/OSA Journal of Lightwave Technology, Accepted. (ISI)(IF: 3.652)
  34. O. Kolade, M. Shimaponda-Nawa, D.J.J. Versfeld and L. Cheng*, "Optimization algorithms for improving performance of permutation trellis codes", IEEE Communications Letters, under review. ISSN: 1089-7798. (ISI)(IF: 2.723)
  35. O. Kolad, A.D. Familua and L. Cheng*(2020), "Indoor Amplify-and-Forward Power-Line and Visible Light Communication Channel Model Based on a Semi-Hidden Markov Model", AEUE - International Journal of Electronics and Communications. (ISI)(IF: 2.853)

  • Publications in conference proceedings
  1. L. Cheng and H. C. Ferreira, "Rate-compatible pruned convolutional codes and Viterbi decoding with the Levenshtein distance metric applied to channels with insertion, deletion and substitution errors," in Proceedings of IEEE AFRICON, Gaborone, Botswana, September 15-17, 2004, pp. 137-143, ISBN 0-7803-8605-1.
  2. K. Ouahada, H. C. Ferreira, L. Cheng and A. J. H. Vinck, "On combined spectral shaping coding and M-FSK modulation for power line communications," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, Vancouver, Canada, April 6-April 8, 2005, pp. 351-355, ISBN 0-7803-8844-5.
  3. L. Cheng and H. C. Ferreira, "Rate-compatible path-pruned convolutional codes and their applications on channels with insertion, deletion and substitution errors," in Proceedings of IEEE Information Theory Workshop on Coding and Complexity, Rotorua, New Zealand, August 28 - September 1, 2005, pp. 20-25, ISBN 0-7803-9481-X.
  4. L. Cheng, H. C. Ferreira and T. G. Swart, "Bidirectional Viterbi decoding using the Levenshtein distance metric for deletion channels," in Proceedings of IEEE Information Theory Workshop, Chengdu, China, October 22-26, 2006, pp. 254-258, ISBN 1-4244-0067-8.
  5. K. A. S. Abdel-Ghaff ar, H. C. Ferreira and L. Cheng, "On linear and cyclic codes for correcting deletions," in Proceedings of the IEEE International Symposium on Information Theory, Nice, France, June 24-29, 2007. pp. 851-855, ISBN 1-4244-1429-6.
  6. H. C. Ferreira, K. A. S. Abdel-Ghaff ar, L. Cheng and T. G. Swart, "Moment balancing templates: universal constructions to add insertion/deletion correction capability to arbitrary error correcting or constrained codes," in Proceedings of the IEEE International Symposium on Information Theory, Nice, France, June 24-29, 2007. pp. 1676-1680, ISBN 1-4244-1429-6.
  7. K. Ouahada, T. G. Swart, H. C. Ferreira and L. Cheng, "Spectral shaping technique for permutation distance-preserving mapping codes," in Proceedings of the IEEE Information Theory Workshop, Tahoe City, CA, USA, September 2-6, 2007, pp. 36-41, ISBN 1-4244-1564-0.
  8. L. Cheng and H. C. Ferreira, "A post-modulation scheme to correct insertion/deletion/substitution errors using the DC2-balanced codes," in Proceedings of IEEE AFRICON, Windhoek, Namibia, Sept. 26-28, 2007, pp. 1-5, ISBN 1-4244-0987-X.
  9. L. Cheng, T. G. Swart and H. C. Ferreira, "Synchronization using insertion/deletion correcting permutation codes," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, Jeju City, Jeju Island, South Korea, April 2-4, 2008, pp. 135-140, ISBN 978-1-4244-1976-0.
  10. L. Cheng, H. C. Ferreira and K. Ouahada, "k-bit grouping moment balancing templates for spectral shaping codes," in Proceedings of the IEEE Information Theory Workshop, Porto, Portugal, May 5-9, 2008, pp. 426-430, ISBN 978-1-4244-2271-5.
  11. L. Cheng, T. G. Swart and H. C. Ferreira, "Re-synchronization of permutation codes with Viterbi-like decoding," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, Dresden, Germany, March 29-April 1, 2009, pp. 36-40, ISBN 978-1-4244-3790-0.
  12. K. Ouahada, H. C. Ferreira and L. Cheng, "Distance-optimality study for permutation codes using cyclic-shift pre x/sux technique," in Proceedings of IEEE AFRICON, Nairobi, Kenya, Sept. 23-25, 2009, pp. 1-5, ISBN 978-1-4244-3919-5.
  13. L. Cheng and H. C. Ferreira, "A note to decoding of permutation sequences with insertions and deletions based on hidden Markov model," in Proceedings of the 1st IEEE African Winter School on Information Theory and Communications, Kruger National Park, South Africa, June 1-4, 2010. pp. 9, ISBN 978-3-9813030-2-5.
  14. L. Cheng, H. C. Ferreira and I. Broere, "Moment balancing templates for (d, k) constrained codes," in Proceedings of the IEEE International Symposium on Information Theory, Austin, TX, USA, June 13-18, 2010. pp. 1218-1222, ISBN 978-1-4244-7891-0.
  15. K. Ifeh, L. Cheng and R. van Olst, "Adaptive transmit-power control scheme for cognitive radios," in Proceedings of the IEEE AFRICON, Zambia, Sept. 13-15, 2011, 6 pages, ISBN 978-1-61284-991-1.
  16. S. Ntuli, L. Cheng and J. Versfeld, "Network coding: improving the throughput of IP networks," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 4-7, 2011, ISBN 0-620-29432-9.
  17. A. D. Familua, A. O. Qatarey, P. A. Janse Van Rensburg and L. Cheng, "Error pattern/behavior of noise in in-house CENELEC A-band PLC channel," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, China, Mar. 27-30, 2012.
  18. L. Cheng and H. C. Ferreira, "Time-diversity permutation coding scheme for narrow-band power-line channels," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, China, Mar. 27-30, 2012.
  19. B. Sim, L. Cheng and J. Versfeld, "Parallelised decoding of turbo product codes using a many-cored processor," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 2-5, 2012, ISBN 0-620-29432-9.
  20. S. Ntuli, L. Cheng and J. Versfeld, "Rate-compatible product-code scheme for wireless channel," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 2-5, 2012, ISBN 0-620-29432-9.
  21. A. D. Familua and L. Cheng, "Modeling of In-House CENELEC A-Band PLC Channel Using Fritchman Model and Baum-Welch Algorithm," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, South Africa, Mar. 24-27, 2013.
  22. L. Cheng, T.G. Swart and H.C. Ferreira, "Adaptive Rateless Permutation Coding Scheme for OFDM-based PLC," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, South Africa, Mar. 24-27, 2013.
  23. F. M. Dahunsi, L. Cheng and R. Van Olst, "Interference Cancellation Techniques for LTE-Advanced," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 1-4, 2013, ISBN 0-620-29432-9.
  24. M. Ndlovu and L. Cheng, "A Permutation Coding and OFDM-MFSK Modulation Scheme for Power-line Communication," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 1-4, 2013, ISBN 0-620-29432-9.
  25. A. D. Familua and L. Cheng, "Baum-Welch Algorithm Parameter Estimation of Fritchman and Gilbert-Elliot Noise Model for CENELEC A Narrowband PLC Channel," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 1-4, 2013, ISBN 0-620-29432-9.
  26. H. Zhu, A.L. Nel, M. Sumbwanyambe and L. Cheng, "Revenue and Utility Maximization under Centralized Dynamic Spectrum Allocation," in Proceedings of the IEEE International Conference on Industrial Engineering and Engineering Management, Bangkok, Thailand, Dec. 10-13, 2013, ISBN 978-1-4577-0740-7.
  27. M. Ndlovu and L. Cheng, "An OFDM Inter-Subcarrier Permutation Coding Scheme for Power-line Communication," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, Glascow, Scotland, Mar. 30- Apr. 2, 2014.
  28. A. Familua, K. Ogunyanda, T.G. Swart H.C. Ferreira, R. van Olst and L. Cheng, "Implementation of PSK Modulation for Narrowband PLC Channel Modeling, Using USRP," in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, Glascow, Scotland, Mar. 30- Apr. 2, 2014.
  29. L. Cheng, T. G. Swart, H. C. Ferreira and K.A.S. Abdel-Ghaffar, "Codes for Correcting Three or More Adjacent Deletions or Insertions," in Proceedings of the IEEE International Symposium on Information Theory, Honolulu, Hawaii, USA, June 29 - July 4, 2014. ISBN 978-1-4244-7891-0.
  30. K. Ogunyanda, A. Familua, T.G. Swart, H.C. Ferreira and L. Cheng, "Permutation Coding with Differential Quinary Phase Shift Keying for Power Line Communication," IEEE PES Innovative Smart Grid Technologies Europe 2014.
  31. A. Hudson and L. Cheng, "Application of Network Coding to Wireless Sensor Networks," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Aug. 31 - Sept. 3, 2014, ISBN 0-620-29432-9.
  32. J. G. Moutzouris and L. Cheng, "A Comparison of Wireless Sensor Network Routing Protocols on a Prototype Experimental Test Bed," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Aug. 31 - Sept. 3, 2014, ISBN 0-620-29432-9.
  33. R. Balmahoon and L. Cheng, "Bandwidth reduction using correlated source compression for smart grid meters with feedback," in Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Aug. 31 - Sept. 3, 2014, ISBN 0-620-29432-9.
  34. R. Balmahoon and L. Cheng, "Information Leakage for Correlated Sources with Compromised Source Symbols over Wiretap Channel II," in Proceedings of the 52nd Annual Allerton Conference on Communication, Control, and Computing, Monticello, US, 2014.
  35. K. Ogunyanda, A. Familua, T.G. Swart, H.C. Ferreira, L. Cheng and T. Shongwe, "Evaluation and Implementation of Cyclic Permutation Coding for Power Line Communications," in Proceedings of the 6th International Conference On Adaptive Science & Technology, 2014.
  36. K. Ogunyanda, A. Familua, T.G. Swart, H.C. Ferreira and L. Cheng, "Adaptive Permutation Coded Differential OFDM System for Power Line Communications," in Proceedings of the 6th International Conference On Adaptive Science & Technology, 2014.
  37.  H. C. Ferreira, L. Cheng, T. G. Swart, and K. A. S. Abdel-Ghaffar, “Interleaving arrays for insertion/deletion or reversal error correction,” presented at the Information Theory and Applications Workshop, San Diego, USA, Feb. 2015.
  38. A.D. Familua, A.R. Ndjiongue, K. Ogunyanda, L. Cheng, H.C. Ferreira and T.G. Swart, "A Semi-Hidden Markov Modeling of a Low Complexity FSK-OOK In-House PLC and VLC Integration", in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, TX, US, 2015.
  39. K. M. Rabie, E. Alsusa, A. D. Familua and L. Cheng, "Constant Envelope OFDM Transmission over Impulsive Noise Power-Line Communication Channels", in Proceedings of the IEEE International Symposium on Power Line Communications and its Applications, TX, US, 2015.
  40. R. Balmahoon and L. Cheng, "Information Leakage of Heterogeneous Encoded Correlated Sequences over An Eavesdropped Channel," in Proceedings of the IEEE International Symposium on Information Theory, Hong Kong, China, June 14 - 19, 2015.
  41. A.R. Ndjiongue, S. Martin, H.C. Ferreira, L. Cheng and K. Ouahada, "PLC-VLC Linear Channel Model and Estimation Using a Non-Parametric Approach",  the 2016 International Conference on Computer, Information and Telecommunication Systems, July 6-8, 2016, Kunming, China
  42. A. Emleh, A. de Beer, L. Cheng, H.C. Ferreira, A.J.H. Vinck, "An Overview of Colour LED & CFL Lighting Interference on the Low Voltage PLC Network", IEEE 40th International Conference on Telecommunications and Signal Processing, July 5 - 7, 2017, Barcelona, Spain.
  43. X. Ma, F. Yang, L. Cheng, J. Song, "Sparse Channel Estimation for MIMO Systems based on Time-Domain Training Sequence Optimization", 14th International Wireless Communications and Mobile Computing Conference, Limassol, Cyprus, June 25-29, 2018, pp. 1-6.
  44. T. Wang, F. Yang, L. Cheng and J. Song, "Generalized Spatial Modulation Based Hybrid Dimming Scheme for Visible Light Communication",  2018 IEEE Global Communications Conference (GLOBECOM), Dec 9-12,  2018,  Abu Dhabi, United Arab Emirates.
  45. M. Cox, L. Cheng and A. Forbes, "Bridging the digital divide: a South African perspective", Photonic Networks and Devices, Zurich, Switzerland Jul. 2-5, 2018, p. NeW2F-3.
  46. I. Kolade, M. Cox and L. Cheng, "Visible light communication using software-defined radio approach", Senors, MEMS and Electro-Optical Systems (SMEOS), Mpumalanga, South Africa Oct. 8-10, 2018, pp. 1-6.
  47. M. Cox, L. Cheng and A. Forbes, "Single-Pixel Wavefront Measurement using Digital Micro-Mirror Devices", Senors, MEMS and Electro-Optical Systems (SMEOS), Mpumalanga, South Africa Oct. 8-10,2018, pp. 1-6.
  48. M. Cox and L. Cheng, "Modelling Crosstalk and Propagation of LG Beams in Turbulence", Senors, MEMS and Electro-Optical Systems (SMEOS), Mpumalanga, South Africa Oct. 8-10, 2018, pp. 1-6.
  49. D. O. Onwuatuelo, L. Cheng, T. G. Swart and T. Shongwe, "Joint Decoding of Parallel Power Line and Visible Light Communication Systems", Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa, Sept. 2-5, 2018, pp. 1-6.
  50. A. Yang and L. Cheng, "Surface Damage Detection by Edge Computing and Pattern Recognition", Proceedings of the Southern Africa Telecommunication Networks and Applications Conference, South Africa,Sept. 2-5, 2018, pp. 1-6.
  51. Huang X., Yang F., Song J., Cheng L. (2019): Subcarrier and Power Allocations for Enhanced ADO-OFDM with Dimming Control, in the 53rd IEEE International Conference on Communications (ICC), Shanghai, China, 2019.
  52. Wang T., Yang F., Pan C. Cheng L., Song J. (2019): Index Modulation Based Hybrid Dimming Scheme for Visible Light Communication, in the 53rd IEEE International Conference on Communications (ICC), Shanghai, China, 2019.
  53. Oluwafemi Kolade and L. Cheng (2019): Impulse Noise Mitigation Using Subcarrier Coding of OFDM-MFSK Scheme in Powerline Channel, in 10th IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm 2019), Beijing, China, 2019.
  54. Oluwafemi Kolade and L. Cheng (2019): Permutation-Aided Space-Time Shift Keying for Indoor Visible Light Communication, in 10th IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm 2019), Beijing, China, 2019.
  55. A.Y. Yang, H.Y. Zhu and L. Cheng, Long-Bone Fracture Detection using Artificial Neural Networks based on Line Features of X-ray Images, 2019 IEEE Symposium Series on Computational Intelligence (IEEE SSCI 2019), Xiamen, China, 2019
  56. R. Strange, A.Y. Yang and L. Cheng, Discrete Flower Pollination Algorithm for Solving the Symmetric Travelling Salesman Problem, 2019 IEEE Symposium Series on Computational Intelligence (IEEE SSCI 2019), Xiamen, China, 2019
  57. T.D. Perera, D.N.K. Jayakody, S. Garg, N. Kumar and L. Cheng, "Wireless-Powered UAV-assisted Communication System in Nakagami-m Fading Channels", 2020 IEEE 17th Annual Consumer Communications & Networking Conference (CCNC), 2020.
 Ling Cheng <ling.cheng@wits.ac.za>
Last Modified: 2020/02/17
                            © 2020 Electrical and Information Engineering, University of the Witwatersrand