Thesis

  • Y. Liu, "Non-Orthogonal Multiple Access for 5G: Design and Performance Enhancement'', Queen Mary University of London


  • Book Chapters

  • Y. Liu, and M. Elkashlan, "On the Application of SWIPT on NOMA Networks", In: D. W. Kwan Ng, T. Q. Duong, C. Zhong, and R. Schober (Eds.), Wireless Information and Power Transfer: Theory and Practice, Wiley, 2019.
  • Z. Qin Y. Liu, and A. Nallanathan, "NOMA based Ultra Dense Networks", In: H. Zhang, J. Lee, T. Quek, and C. Lin I (Eds.), Ultra Dense Networks: Principles and Technologies, Cambridge University Press, 2019.
  • B. Xu, Y. Chen and Y. Liu, "Heterogeneous NOMA with Energy Cooperation", In: M. Vaezi, Z. Ding, and H. V. Poor (Eds.), Multiple Access Techniques for 5G Wireless Networks and Beyond, Springer International Publishing, 2019. [link]


  • Journal Articles

      Non-Orthogonal Multiple Access (NOMA)

    1. Y. Liu, Z. Qin, M. Elkashlan, Z. Ding, A. Nallanathan and L. Hanzo "Non-orthogonal Multiple Access for 5G and Beyond'', Proceedings of the IEEE; vol. 105, no. 12, pp. 2347-2381, Dec. 2017. (An interesting demonstration for this paper is available on [Video] [Researchgate] and [Slides]. A full tutorial version is available here [Tutorial], Top 15 most popular article on Proceedings of the IEEE )
    2. Y. Liu, Z. Qin, M. Elkashlan, A. Nallanathan and J. A. McCann, "Non-orthogonal Multiple Access in Large-Scale Heterogeneous Networks'', IEEE Journal on Selected Areas in Communications; vol. 35, no. 12, pp. 2667-2680, Dec. 2017. [Arxiv]
    3. Y. Liu, Z. Qin, M. Elkashlan, Y. Gao, and L. Hanzo, "Enhancing the Physical Layer Security of Non-orthogonal Multiple Access in Large-scale Networks'', IEEE Transactions on Wireless Communications; vol. 16, no. 3, pp. 1656-1672, Mar. 2017. [Arxiv] (Web of Science Highly Cited Paper, Top 5 most popular article on TWC )
    4. Y. Liu, Z. Ding, M. Elkashlan, and H. V. Poor, "Cooperative Non-orthogonal Multiple Access with Simultaneous Wireless Information and Power Transfer'', IEEE Journal on Selected Areas in Communications; vol. 34, no. 4, pp. 938--953 Apr. 2016. [Slides] [Arxiv] (Web of Science Hot Paper, Web of Science Highly Cited Paper, Top 15 most popular article on JSAC.)
    5. Y. Liu, H. Xing, C. Pan, A. Nallanathan, M. Elkashlan, and L. Hanzo, ``Multiple Antenna Assisted Non-Orthogonal Multiple Access'', IEEE Wireless Communications; vol. 25, no. 2, pp. 17-23, April 2018. [Arxiv]
    6. Y. Liu, Z. Ding, M. Elkashlan, and J. Yuan, "Non-orthogonal Multiple Access in Large-Scale Underlay Cognitive Radio Networks'', IEEE Transactions on Vehicular Technology; vol. 65, no. 12, pp. 10152--10157, Dec. 2016. (Web of Science Highly Cited Paper) [Arxiv]
    7. Y. Liu, M. Elkashlan, Z. Ding, and G. K. Karagiannidis, "Fairness of User Clustering in MIMO Non-orthogonal Multiple Access Systems'', IEEE Communication Letters; vol. 20, no. 7, pp. 1465-1468, July 2016. [PDF]
    8. Y. Liu, Z. Qin, Y. Cai, Y. Gao, G. Ye Li, and A. Nallanathan, "UAV Communications Based on Non-Orthogonal Multiple Access'', IEEE Wireless Communications; Accept to appear. [Arxiv]
    9. X. Yue, Y. Liu, S. Kao, A. Nallanathan, and Y. Chen, "Modeling and Analysis of Two-Way Relay Non-Orthogonal Multiple Access Systems'', IEEE Transactions on Communications; accept to appear. [PDF]
    10. H. Xing, Y. Liu, A. Nallanathan, Z. Ding and H. V. Poor, "Optimal Throughput Fairness Trade-offs for Downlink Non-Orthogonal Multiple Access over Fading Channels'', IEEE Transactions on Wireless Communications; vol. 17, no. 6, pp. 3556-3571, June 2018. [Arxiv]
    11. X. Yue, Y. Liu, S. Kao, A. Nallanathan, and Z. Ding, "Spatially Random Relay Selection for Full/Half-Duplex Cooperative NOMA Networks'', IEEE Transactions on Communications; vol. 66, no. 8, pp. 3294-3308, Aug. 2018. [PDF]
    12. W. Wang, Y. Liu, Z. Luo, T. Jiang, Q. Zhang, and A. Nallanathan, "Toward Cross-Layer Design for Non-Orthogonal Multiple Access: A Quality-of-Experience Perspective'', IEEE Wireless Communications; vol. 25, no. 2, pp. 118-124, April 2018. [Arxiv]
    13. J. Cui, Y. Liu, Z. Ding, P. Fan, and A. Nallanathan, "Optimal User Scheduling and Power Allocation for Millimeter Wave NOMA Systems'', IEEE Transactions on Wireless Communications; vol. 17, no. 3, pp. 1502-1517, Mar. 2018. [Arxiv]
    14. J. Zhao, Y. Liu, K. K. Chai, A. Nallanathan, Y. Chen, and Z. Han, "Spectrum Allocation and Power Control for Non-Orthogonal Multiple Access in HetNets'', IEEE Transactions on Wireless Communications; vol. 16, no. 9, Sep. 2017. [PDF] (Top 2 most popular article on TWC )
    15. X. Yue, Y. Liu, S. Kao, A. Nallanathan, and Z. Ding, "Exploiting Full/Half-Duplex User Relaying in NOMA Systems'', IEEE Transactions on Communications; vol. 66, no. 2, pp. 560-575, Feb. 2018. (Top 15 most popular article on TCOM ) [PDF]
    16. Z. Qin, X. Yue, Y. Liu, Z. Ding, and A. Nallanathan, “User Association and Resource Allocation in Unified NOMA Enabled Heterogeneous Ultra Dense Networks'', IEEE Communication Magazine; vol. 56, no. 6, pp. 86-92, June 2018. [Arxiv]
    17. J. Zhao, Y. Liu, K. K. Chai, Y. Chen, and M. Elkashlan, "Joint Subchannel and Power Allocation for NOMA Enhanced D2D Communications'', IEEE Transactions on Communications; vol. 65, no. 11, Nov. 2017. [PDF] (Top 5 most popular article on TCOM )
    18. Z. Ding, Y. Liu, J. Choi, Q. Sun, M. Elkashlan, Chih-Lin I, and H. V. Poor, "Application of Non-orthogonal Multiple Access in LTE and 5G Networks'', IEEE Communication Magazine; vol.~55, no.~2, pp. 185--191, Feb. 2017. [Arxiv] (Web of Science Hot Paper, Web of Science Highly Cited Paper, Top 6 most popular article on Commun. Mag.)
    19. X. Yue, Y. Liu, S. Kao, and A. Nallanathan, "Performance Analysis of NOMA with Fixed Gain Relaying over Nakagami-m Fading Channels'', IEEE Access; vol. 5, no. , pp. 5445-5454, 2017.
    20. D. Zhang, Y. Liu, Z. Ding, Z. Zhou, A. Nallanathan, and T. Sato, "Performance Analysis of Non-Regenerative Massive-MIMO-NOMA Relay Systems in 5G'', IEEE Transactions on Communications ; vol. 65, no. 11, Nov. 2017 . (Top 15 most popular article on TCOM )
    21. X. Yue, Z. Qin, Y. Liu, S. Kao, and Y. Chen, "A Unified Framework for Non-Orthogonal Multiple Access'', IEEE Transactions on Communications; accept to appear. [PDF]
    22. J. Cui, Y. Liu, Z. Ding, P. Fan, and A. Nallanathan, "QoE-based Resource Allocation for Multi-cell NOMA Networks'', IEEE Transactions on Wireless Communications; vol. 17, no. 9, pp. 6160-6176, Sept. 2018. [PDF]
    23. T. Hou, Y. Liu, Z. Song, X. Sun, Y. Chen, "Multiple Antenna Aided NOMA in UAV Networks: A Stochastic Geometry Approach'', IEEE Transactions on Communications; accept to appear.
    24. Z. Song, Y. Liu, X. Sun "Joint Radio and Computational Resource Allocation for NOMA Based Mobile Edge Computing in Heterogeneous Networks'', IEEE Communications Letters; accept to appear.
    25. Wireless Power Transfer

    26. Y. Liu, S. A. Mousavifar, Y. Deng, C. Leung, and M. Elkashlan, "Wireless Energy Harvesting in a Cognitive Relay Network'' , IEEE Transactions on Wireless Communications, vol. 15, no. 4, pp. 2498-2508, Apr. 2016. [Arxiv] (Web of Science Highly Cited Paper, Top 6 most popular article on TWC)
    27. Y. Liu, L. Wang, S. A. R. Zaidi, M. Elkashlan, and T. Q. Duong, "Secure D2D Communication in Large-scale Cognitive Cellular Networks: A Wireless Power Transfer Model'', IEEE Transactions on Communications; vol. 64, no. 1, pp. 329-342, Jan. 2016. [PDF] (Web of Science Highly Cited Paper, Top 5 most popular article on TCOM)
    28. Y. Liu, L. Wang, M. Elkashlan, T. Q. Duong, and A. Nallanathan, "Two-Way Relay Networks with Wireless Power Transfer: Design and Performance Analysis'', IET Communications; vol. 10, no. 14, pp. 1810--1819, Sep. 2016. [PDF]
    29. Z. Qin, Y. Liu, Y. Gao, M. Elkashlan, and A. Nallanathan, "Wireless Powered Cognitive Radio Networks with Compressive Sensing and Matrix Completion'', IEEE Transactions on Communications; vol. 65, no. 4, pp. 1464-1476, Apr. 2017. [Arxiv]
    30. J. Ye, H. Lei, Y. Liu, G. Pan, D. Costa, Q. Ni, Z. Ding, "Cooperative Communications with Wireless Energy Harvesting over Nakagami-$m$ Fading Channels'', IEEE Transactions on Communications; vol. 65, no. 12, Dec. 2017.
    31. Millimeter Wave Communications

    32. W. Yi, Y. Liu, and A. Nallanathan, "Modeling and Analysis of D2D Millimeter-Wave Networks with Poisson Cluster Processes'', IEEE Transactions on Communications; vol. 65, no. 12, Dec. 2017. [PDF]
    33. W. Yi, Y. Liu, and A. Nallanathan, "Cache-enabled HetNets with Millimeter Wave Small Cells'', IEEE Transactions on Communications; accept to appear. [PDF]
    34. D. Fan, F. Gao, Y. Liu, Y. Deng, G. Wang, Z. Zhong and A. Nallanathan, "Angle Domain Channel Estimation in Hybrid MmWave Massive MIMO Systems'', IEEE Transactions on Wireless Communications; accept to appear.
    35. Other Reserach Topics

    36. Y. Liu, L. Wang, T. T. Duy, M. Elkashlan, and T. Q. Duong, "Relay Selection for Security Enhancement in Cognitive Relay Networks'', IEEE Wireless Communications Letters; vol. 4, no. 1, pp. 46-49, Feb. 2015. [PDF] (Web of Science Highly Cited Paper, Top 15 most popular article on WCL)
    37. J. Zhao, Y. Liu, K. K. Chai, Y. Chen, and M. Elkashlan, "Many-to-Many Matching with Externalities for Device-to-Device Communications'', IEEE Wireless Communications Letters; vol. 6, no. 1, pp. 138-141, Feb. 2017. [PDF] (Top 2 most popular article on WCL)
    38. J. Zhao, Y. Liu, K. K. Chai, M. Elkashlan, and Y. Chen, "Matching with Peer Effects for Context-Aware Resource Allocation in D2D Communications'', IEEE Communications Letters; vol. 21, no. 4, pp. 837-840, Apr. 2017. [PDF]
    39. Z. Qin, J. Fan, Y. Liu, Y. Gao and G. Y. Li, "Sparse Representation with Applications in Wireless Communications'', IEEE Signal Processing Magazine; vol. 35, no. 3, pp. 40-58, May 2018. [Arxiv] (Top 5 most popular article on IEEE SPM)
    40. C. Pan, H. Mehrpouyan, Y. Liu, M. Elkashlan, and A. Nallanathan, "Joint Pilot Allocation and Robust Transmission Design for Ultra-dense User-centric TDD C-RAN with Imperfect CSI'', IEEE Transactions on Wireless Communications; vol. 17, no. 3, pp. 2038-2053, Mar. 2018. [Arxiv]


    Conference Publications

    1. X. Liu, Y. Liu, and Y. Chen, ``Deployment and Movement for Multiple Aerial Base Stations by Reinforcement Learning", in Proc. IEEE Global Communications Conf.(GLOBECOM'18), Abu Dhabi, December 2018.
    2. W. Yi, Y. Liu, and A. Nallanathan, ``A Unified Spatial Framework for Clustered UAV Networks Based on Stochastic Geometry'', in Proc. IEEE Global Communications Conf.(GLOBECOM'18), Abu Dhabi, December 2018.
    3. Z. Yang, Y. Liu, and Y. Chen, ``Q-Learning for Content Placement in Wireless Cooperative Caching", in Proc. IEEE Global Communications Conf.(GLOBECOM'18), Abu Dhabi, December 2018.
    4. X. Li, M. Matthaiou, Y. Liu, H. Ngo, and L. Li ``Multi-Pair Two-Way Massive MIMO Relaying with Hardware Impairments over Rician Fading Channels", in Proc. IEEE Global Communications Conf.(GLOBECOM'18), Abu Dhabi, December 2018.
    5. X. Li, J. Li, Y. Liu, Z. Ding, and A. Nallanathan, ``Outage Performance of Cooperative NOMA Networks with Hardware Impairments", in Proc. IEEE Global Communications Conf.(GLOBECOM'18), Abu Dhabi, December 2018.
    6. W. Yi, Y. Liu and A. Nallanathan, ``Modeling and Analysis of mmWave Communications in Cache-enabled HetNets'', in Proc. IEEE Int. Communications Conf. (ICC'18), Kansas City, U.S.A, May 2018.
    7. [Arxiv]
    8. W. Yi, Y. Liu and A. Nallanathan, ``Exploiting Multiple Access in Clustered Millimeter Wave Networks: NOMA or OMA?'', in Proc. IEEE Int. Communications Conf. (ICC'18), Kansas City, U.S.A, May 2018. [Arxiv]
    9. K. Wang, Y. Liu, Z. Ding and A. Nallanathan, ``User Association in Non-Orthogonal Multiple Access Networks'', in Proc. IEEE Int. Communications Conf. (ICC'18), Kansas City, U.S.A, May 2018.
    10. X. Yue, Y. Liu, S. Kang, A. Nallanathan and Y. Chen, ``Outage Performance of Two-Way Relay Non-Orthogonal Multiple Access Systems'', in Proc. IEEE Int. Communications Conf. (ICC'18), Kansas City, U.S.A, May 2018. [Arxiv]
    11. J. Zhao, Y. Liu , T. Mahmoodi, K. K. Chai, Y. Chen and Z. Han, ``Resource Allocation in Cache-Enabled CRAN with Non-Orthogonal Multiple Access'', in Proc. IEEE Int. Communications Conf. (ICC'18), Kansas City, U.S.A, May 2018.
    12. X. Yue, Z. Qin, Y. Liu, X. Dai, and Y. Chen, "Outage Performance of A Unified Non-Orthogonal Multiple Access Framework'', in Proc. IEEE Int. Communications Conf. (ICC'18), Kansas City, U.S.A, May 2018. [Arxiv]
    13. H. Xing, Y. Liu, A. Nallanathan, and Z. Ding ``Sum-rate Maximization Guaranteeing User Fairness for NOMA in Fading Channels'', in Proc. IEEE (WCNC'18), Barcelona, Spain, April 2018.
    14. W. Yi, Y. Liu, and A. Nallanathan, ``Modeling and Analysis of Clustered D2D Millimeter-Wave Communications'', in Proc. IEEE International Conference on Computing, Networking and Communications (ICNC'18), Maui, Hawaii, USA, December 2018.
    15. X. Yue, Y. Liu, R. Liu, A. Nallanathan, and Z. Ding "Full/Half-Duplex Relay Selection for Cooperative NOMA Networks'', in Proc. IEEE Global Communications Conf.(GLOBECOM'17), Singapore, December 2017. [Slides]
    16. J. Cui, Y. Liu, Z. Ding, P. Fan, and A. Nallanathan "User Selection and Power Allocation for MmWave-NOMA Networks'', in Proc. IEEE Global Communications Conf. (GLOBECOM'17), Singapore, Singapore, December 2017. [Slides]
    17. F. J. Martin-Vega, Y. Liu, G. Gomez, M. C. Aguayo-Torres, and M. Elkashlan "Modeling and Analysis of NOMA Enabled CRAN with Cluster Point Process'', in Proc. IEEE Global Communications Conf. (GLOBECOM'17), Singapore, December 2017. [Slides]
    18. C. Pan, H. Mehrpouyan, Y. Liu, M. Elkashlan, and A. Nallanathan "Joint Pilot Allocation and Robust Beam-vector Design for Ultra-Dense TDD C-RAN'', in Proc. IEEE Global Communications Conf. (GLOBECOM'17), Singapore, December 2017.
    19. D. Fan, Y. Deng, F. Gao, Y. Liu, Z. Zhong and A. Nallanathan, "Training based DOA Estimation in Hybrid MmWave Massive MIMO Systems'', in Proc. IEEE Global Communications Conf. (GLOBECOM'17), Singapore, December 2017.
    20. J. Cui, Y. Liu, Z. Ding, P. Fan, and A. Nallanathan "A QoE-Aware Resource Allocation Strategy for Multi-cell NOMA Networks'', in Proc. IEEE Global Communications Conf. (GLOBECOM'17) Workshop, Singapore, December 2017. [Slides]
    21. D. Fan, Y. Liu, G. Wang, Z. Zhong and A. Nallanathan, "Joint Doppler and Channel Estimation for High-Speed Railway Wireless Communication with Massive ULA'', in Proc. IEEE Veh. Technol. Conf. (VTC-Spring'17) Workshop, Sydney, Australia, June 2017.
    22. D. Zhang, Y. Liu, Z. Ding, Z. Zhou, and A. Nallanathan, "Performance Analysis of Non-regenerative Relay Assisted NOMA System'', in Proc. International Conference on Wireless Communications and Signal Processing (WCSP), Nanjing, China, October 2017.
    23. S. M. Al-Basit, J. Cui, Y. Liu, Z. Ding, and P. Fan "Maximizing SINR for Non-Orthogonal Multiple Access With Bounded Channel Uncertainties'', in Proc. IEEE International Conference on Communications in China (ICCC) , Qingdao, China, October 2017.
    24. Z. Qin, Y. Liu, Geoffrey Y. Li, and J. A. McCann, "Performance Analysis of Clustered Low-Power Wide-Area Networks'', in Proc. IEEE Int. Communications Conf. (ICC'17), Paris, France, May 2017.
    25. X. Yue, Y. Liu, S. Kao, A. Nallanathan, and Z. Ding "Outage Performance of Full/Half-Duplex User Relaying in NOMA Systems'', in Proc. IEEE Int. Communications Conf. (ICC'17), Paris, France, May 2017. [Slides]
    26. J. Zhao, Y. Liu, K. K. Chai, A. Nallanathan, Y. Chen, and Z. Han, "Resource Allocation for Non-Orthogonal Multiple Access in Heterogeneous Networks'', in Proc. IEEE Int. Communications Conf. (ICC'17), Paris, France, May 2017.
    27. Y. Liu, Z. Qin, M. Elkashlan, Y. Gao, and A. Nallanathan, "Non-orthogonal Multiple Access in Massive MIMO Aided Heterogeneous Networks'', in Proc. IEEE Global Communications Conf. (GLOBECOM'16), Washington DC, USA, Dec. 2016. [Slides]
    28. J. Zhao, Y. Liu, K. K. Chai, Y. Chen, M. Elkashlan, and J. Alonso-Zarate, "NOMA-based D2D Communications: Towards 5G'', in Proc. IEEE Global Communications Conf. (GLOBECOM'16), Washington DC, USA, Dec. 2016. [Slides]
    29. Y. Liu, Z. Qin, M. Elkashlan, Y. Gao, and A. Nallanathan, "Physical Layer Security for 5G Non-orthogonal Multiple Access in Large-scale Networks'', in Proc. IEEE Int. Communications Conf. (ICC'16), Kuala Lumpur, Malaysia, May 2016. [Slides]
    30. Z. Qin, Y. Liu, Y. Gao, M. Elkashlan, and A. Nallanathan, "Throughput Analysis for Compressive Spectrum Sensing with Wireless Power Transfer'', in Proc. IEEE Global Communications Conf. (GLOBECOM'15), San Diego CA, USA, December 2015.
    31. Y. Liu, Z. Ding, M. Elkashlan, and H. V. Poor, "Cooperative Non-orthogonal Multiple Access in 5G system with SWIPT'', in Proc. European Signal Processing Conf. (EUSIPCO' 15), Nice, France, August 2015. (Invited Paper)
    32. Y. Liu, L. Wang, S. A. R. Zaidi, M. Elkashlan, and T. Q. Duong, ``Secure D2D Communication in Large-scale Cognitive Cellular Networks with Wireless Power Transfer'', in Proc. IEEE Int. Communications Conf. (ICC'15), London, UK, June 2015. [Slides]
    33. Y. Liu, L. Wang, M. Elkashlan, T. Q. Duong, and A. Nallanathan, "Two-way Relaying Networks with Wireless Power Transfer: Policies design and throughput analysis'', in Proc. IEEE Global Communications Conf. (GLOBECOM'14), Austin TX, USA, December 2014.
    34. S. A. Mousavifar, Y. Liu, C. Leung, M. Elkashlan, and T. Q. Duong, "Wireless Energy Harvesting and Spectrum Sharing in Cognitive Radio'', in Proc. IEEE Veh. Technol. Conf. (VTC-Fall'14), Vancouver, Canada, September 2014.
    35. Y. Liu, X. Guo, and S. Li, "A Channel Gain-based Hierarchical K-Best OSIC-SE Detection Algorithm for Stable Complexity in MIMO System'', in Proc. IEEE Int. Conf. on Communication Technology (ICCT), Guilin, China, November 2013.