My research covers coding and information theory, post-quantum cryptography, communications and signal processing, with an emphasis on lattices and their applications. A lattice is a regular array of points which basically generalizes the concept of the integers to multiple dimensions. For this reason, lattices are central objects studied in modern number theory. Perhaps the most famous application of lattices is sphere packing, which gives rise to their prominent role in information theory. More recently, lattices have been used to construct capacity-achieving codes over wireless fading channels, and have emerged as the most promising candidate of post-quantum cryptography. Our research lies on the interface of information theory, number theory, cryptography and quantum information. Current interests are

  • Lattice coding and cryptography
  • Coding and wireless communications
  • Information theory
  • Signal processing

Selected research projects

  • Bridging the Gap Between Lattice Coding and Lattice Cryptography — Post-Quantum Cryptography, EPSRC, 2019-2022
  • Quantum computing and lattice-based cryptography, UK Government, 2017-2021
  • PHYLAWS (Physical Layer Wireless Security), European Commission FP7, 2012-2016
  • LACONIC: Lattice Coding for Multiuser Wireless Communications, European Commission FP7, 2011-2013
  • Iterative (Turbo) Receiver Structures for the Future Generation Mobile Communications, National Science Foundation of China, 2000-2003


  • Ling Liu, Cong Ling and Xin Kang, Polar code encoding for fading channel, Patent number EP3370341 (A1).
  • Christiane Kameni Ngassa, Francois Delaveau, Jean-Claude Belfiore and Cong Ling, Key-free security of AIR interface in wireless communications by using radio propagation random for enabling secret codes, Patent number FR3046316 (A1).