Publication

Book Chapter

[1] R. Wang, “Reinforcement-learning-based Wireless Resource Allocation”, invited chapter of book “Applications of Machine Learning in Wireless Communications”, DOI: 10.1049/PBTE081E, IET Digital Library, https://digital-library.theiet.org/content/books/te/pbte081e.

Approximate MDP & Reinforcement Learning

[14] Z. H. Han, H. S. Tan, R. Wang, Y. C. Hong, F. C. M. Lau, “Efficient Online Learning Based Cross-Tier Uplink Scheduling in HetNets,” in IEEE/ACM Transactions on Networking.

[13] Y. C. Hong, B. J. Lv, R. Wang, H. S. Tan, Z. H. Han, F. C. M. Lau, “Distributed Job Dispatching in Edge Computing Networks with Random Transmission Latency: A Low-Complexity POMDP Approach,” IEEE Internet of Things Journal, vol. 9, no. 6, pp. 4152-4167, Mar.2022.

[12] Q. Lan, B. Lv, R. Wang, K. Huang, Y. Gong, “Adaptive Video Streaming for Massive MIMO Networks via Approximate MDP and Reinforcement Learning”, IEEE Transactions on Wireless Communications, vol. 19, no. 9, pp. 5716-5731, Sept. 2020.

[11] S. Huang, B. Lv, R. Wang, K. Huang, “Scheduling for Mobile Edge Computing with Random User Arrivals: An Approximate MDP and Reinforcement Learning Approach”, IEEE Transactions on Vehicular Technology, vol. 69, no. 7, pp. 7735-7750, Apri. 2020.

 [10] B. Lv, R. Wang, Y. Cui, Y. Gong and H. Tan, “Joint Optimization of File Placement and Delivery in Cache-Assisted Wireless Networks with Limited Lifetime and Cache Space”, IEEE Transactions on Communications, vol. 68, no. 4, pp. 2339-2354, Apri. 2020.

 [9] B. Lv, Y. Hong, H. Tan, Z. Hua and R. Wang, “Cooperative Jobs Dispatching in Edge Computing Network with Unpredictable Uploading Delay” Journal of Communications and Information Networks, vol. 5, no. 1, Mar. 2020.

[8] C. C. Ye, Y. Cui, Y. Yang and R. Wang, “Optimal Caching Designs for Perfect, Imperfect and Unknown File Popularity Distributions in Large-Scale Multi-Tier Wireless Networks” IEEE Transactions on Communications, vol. 67, no. 9, pp. 6612-6625, Sept. 2019.

[7] B. Lv, L. Huang, R. Wang, “Joint Downlink Scheduling for File Placement and Delivery in Cache-Assisted Wireless Networks with Finite File Lifetime”, IEEE Transactions on Communications, vol. 67, no. 3, pp. 2274-2293, March 2019.

[6] Z. Han, H. Tan, R. Wang, G. Chen, Y. Li, F. C. M. Lau. Energy Efficient Dynamic Virtual Machine Management in Data Centers”, IEEE/ACM Transactions on Networking, vol. 27, no. 1, pp. 344 – 360, Jan. 2019.

[5] Z. Han, H. Tan, R. Wang, S. Tang, and F. C. M. Lau, Online Learning based Uplink Scheduling in HetNets with Limited Backhaul Capacity”, IEEE INFOCOM’18.

[4] Z. Han, H. Tan, G. Chen, R. Wang, Y. Chen, and F. C. M. Lau, Dynamic virtual machine management via approximate Markov decision process”, IEEE INFOCOM’16.

[3] R. Wang and V. K. N. Lau, “Delay-Aware Two-Hop Cooperative Relay Communications via Approximate MDP and Stochastic Learning”, IEEE Transactions on Information Theory, vol. 59, pp. 7645-7670, Nov. 2013.

[2] R. Wang, V. K. N. Lau, and Y. Cui, “Queue-Aware Distributive Resource Control for Delay-Sensitive Two-Hop MIMO Cooperative Systems”, IEEE Transactions on Signal Processing, vol. 59, pp. 341-350, Jan. 2011.

[1] Y. Cui, V. K. N. Lau, R. Wang, H. Huang and S. Q. Zhang, “A Survey on Delay-Optimal Resource Control for Wireless Systems — Large derivation Theory, Stochastic Lyapunov Drift and Approximate MDP using Distributive Stochastic Learning”, IEEE Transactions on Information Theory, vol. 58, pp. 1677 – 1701, Mar. 2012.

Edge Computing

[5] S. F. Huang, Z. Z. Zhong, S. Wang, R. Wang, K. B. Huang, “Accelerating Federated Edge Learning via Topology Optimization,” in IEEE Internet of Things Journal.

[4] Z. Z. Zhong, G. X. Zhu, R. Wang, V. K. N. Lau, K. B. Huang, “Turning Channel Noise into an Accelerator for Over-the-Air Principal Component Analysis,” in IEEE Transactions on Wireless Communications.

[3] S. Wang, Y. C. Hong, R. Wang, Q. Hao, Y. C. Wu, W. K. Ng, “Edge Federated Learning Via Unit-Modulus Over-The-Air Computation,” in IEEE Transactions on Communications.

[2] L. K. Zhou, Y. C. Hong, S. Wang, R. H. Han, D. C. Li, R. Wang and Q. Hao, “Learning Centric Wireless Resource Allocation for Edge Computing: Algorithm and Experiment”, IEEE Transactions on Vehicular Technology, vol. 70, no. 1, pp. 1035-1040, Jan. 2021.

[1] S. Wang, Y. Wu, M. Xia, R. Wang and H. V. Poor, “Machine Intelligence at the Edge with Learning Centric Power Allocation,” IEEE Transactions on Wireless Communications, vol. 19, no. 11, pp. 7293-7308, Nov. 2020.

Integrated Wireless Sensing and Computing

[1] Z. Zhang, S. -W. Ko, R. Wang and K. Huang, “Cooperative Multi-Point Vehicular Positioning Using Millimeter-Wave Surface Reflection,” IEEE Transactions on Wireless Communications, vol. 20, no. 4, pp. 2221-2236, Apr. 2021.

Massive MIMO

[13] T. Zhang, G. Chen, S. Wang, R. Wang. “Full-Duplex Relay with Delayed CSI Elevates the SDoF of the MIMO X Channel,” Entropy (Basel). Nov. 2021.

[12] T. Zhang and R. Wang, “Secure Degrees-of-Freedom of the MIMO X Channel with Delayed CSIT,” IEEE Wireless Communications Letters, vol. 10, no. 6, pp. 1319-1323, Jun. 2021.

[11] T. Zhang, Y. Xu, S. Wang, M. Wen and R. Wang, “On Secure Degrees of Freedom of the MIMO Interference Channel with Local Output Feedback,” IEEE Internet of Things Journal, vol. 8, no. 20, pp. 15334-15348, Oct. 2021.

[10] T. Zhang and R. Wang, “Achievable DoF Regions of Three-User MIMO Broadcast Channel with Delayed CSIT”, IEEE Transactions on Communications, vol. 69, no. 4, pp. 2240-2253, Apr. 2021.

[9] S. Wang, M. W. Wen, M. H. Xia, R. Wang, Q. Hao, Y. C. Wu, “Angle Aware User Cooperation for Secure Massive MIMO in Rician Fading Channel”, IEEE Journal on Selected Areas in Communications, vol. 38, no. 9, pp. 2182 – 2196, Sept. 2020.

[8] Z. Zhang, Y, Li, R. Wang, K. Huang, “Rate Adaptation for Downlink Massive MIMO Networks and Underlaid D2D Links: A Learning Approach”, IEEE Transactions on Wireless Communications, vol. 18, no. 3, pp. 1819 – 1833, Feb. 2019.

[7] L. Sun, R. Wang, Z. Tang and V. C. M. Leung, “Artificial-Noise-Aided Nonlinear Secure Transmission for Multiuser Multi-Antenna Systems with Finite-Rate Feedback,” IEEE Transactions on Communications, vol. 67, no. 3, March 2019.

[6] L. Sun, R. Wang, W. Wang and V. C. M. Leung, “Nonlinear-Precoded Multiuser Secure Transmission With Cooperative Jamming and Adaptive Limited Feedback,” IEEE Transactions on Vehicular Technology, vol. 67, no. 10, pp. 9747-9763, Oct. 2018.

[5] Y. Li, R. Wang, Z. Zhang, “Downlink Goodput Analysis for Massive MIMO Networks with Underlaid D2D”, IEEE Wireless Communications Letters vol. 7, no. 3, pp. 448-451, Jun. 2018.

[4] Y. Li, R. Wang, H. Tan, Y. Chen and Q. Zhang, “Massive MIMO Uplink Scheme Design and System-Level Performance Analysis,” IEEE Access, vol. 6, pp. 3212-3230, 2018.

[3] M. Teeti, R. Wang, R. Abdolee, “On the Uplink Achievable Rate for Massive MIMO with 1-Bit ADC and Superimposed Pilots,” IEEE Access, vol. 6, pp. 37627 – 37643, 2018.

[2] Z.Zhang, Y. Li and R. Wang, “Suppressing Pilot Contamination in Massive MIMO Downlink via Cross-Frame Scheduling,” IEEE Access, vol. 6, no.1 pp. 44858-44867, Dec. 2018.

[1] Y. Li, R. Wang, Y. Chen and S. Zhu “Exploiting Temporal Channel Correlation in Data-Assisted Massive MIMO Uplink Detection”, IEEE Communications Letters, vol. 21, no. 2, pp. 430-433, Feb. 2017.

Visible Light Communications

[8] H. Xiao, R. Wang, K. Wang, W. L. Chen, K. S. Chiang, “Trade-offs Between Illumination and Modulation Performances of Quantum-Dot LED”, to appear on IEEE Photonics Technology Letters. [Early Access]

[7] H. Xiao, R. Wang, H. Gui, Z. Lv, Z. Liu, K. Wang, “4 Mb/s under 3-m transmission distance using quantum dot light-emitting diode and NRZ-OOK modulation”, Optics Letters, vol. 45, Jan. 2020.

[6] H. Xiao, K. Wang, R. Wang, W. Chen and K Chiang, “Equivalent Circuit of Quantum-Dot LED and Acquisition of Carrier Lifetime in Active Layer”, IEEE Electron Device Letters, no. 1, pp. 87-90, Jan. 2020.

[5] H. Xiao, X. Xiao, R. Wang, K. Wang, K. Chiang and D. Wu, “Effects of Injection Current on the Modulation Bandwidths of Quantum-Dot Light-Emitting Diodes”, IEEE Transactions on Electron Devices, vol. 66, no. 11, pp. 4805-4810, Sept. 2019.

[4] H. Xiao, X. Xiao, R. Wang, K. Wang, H. Liu and W. Choy, “Modeling and analysis for modulation of light-conversion materials in visible light communication,” IEEE Photonics Journal, vol. 11, no. 5, Oct. 2019.

[3] Y. Zhang, M. Jiang, T. Han, X. Xiao, W. Chen, L. Wang, K. Wong, R. Wang, K. Wang, B. Tang, K. Wu, “Aggregation-Induced Emission Luminogens as Color Converters for Visible-Light Communication”, ACS Appl. Mater. Interfaces 2018, 10, 40, 34418-34426.

[2] H. Xiao, X. Xiao, K. Wang, R. Wang B. Xie and K. S. Chiang, “Optimization of Illumination Performance of Trichromatic White Light-Emitting Diode and Characterization of Its Modulation Bandwidth for Communication Applications,” IEEE Photonics Journal, vol. 10, no. 5, pp. 1-11, Oct. 2018, Art no. 8201511.

[1] X. Xiao, H. Tang, T. Zhang, W. Chen, W. Chen, D. Wu, R. Wang and K. Wang “Improving the modulation bandwidth of LED by CdSe/ZnS quantum dots for visible light communication”, Opt. Express 24, 21577-21586 (2016).

Robust Wireless System Design

[8] R. Wang, V. K. N. Lau, and Y. Cui, “Decentralized Fair Scheduling in Two-Hop Relay-Assisted Cognitive OFDMA Systems”, IEEE Journal of Selected Topics in Signal Processing, vol. 5, pp. 171-181, Feb. 2011.

[7] R. Wang, V. K. N. Lau, and H. Huang, “Opportunistic Buffered Decode-Wait-and-Forward (OBDWF) Protocol for Mobile Wireless Relay Networks”, IEEE Transactions on Wireless Communications, vol. 10, pp. 1224-1231, April 2011.

[6] R. Wang and V. K. N. Lau, “Closed-loop Cross-layer SDMA Designs with Outdated CSIT”, IEEE Transactions on Wireless Communications, vol. 8, pp. 1322-1328, March 2009.

[5] R. Wang, V. K. N. Lau, L. J. Lv and B. Chen, “Joint Cross-Layer Scheduling and Spectrum Sensing for OFDMA Cognitive Radio Systems”, IEEE Transactions on Wireless Communications, vol. 8, pp. 2410-2416, May 2009.

[4] Y. Cui, V. K. N. Lau and R. Wang, “Distributive Subband Allocation, Power and Rate Control for Relay-Assisted OFDMA Cellular System with Imperfect System State Knowledge”, IEEE Transactions on Wireless Communications, vol. 8, pp. 5096-5102, Oct. 2009.

[3] R. Wang and V. K. N. Lau, “Combined Cross-Layer Design and HARQ for Multiuser Systems with Outdated CSIT in Slow Fading Channels”, IEEE Transactions on Wireless Communications, vol. 7, pp. 2771-2777, July 2008.

[2] R. Wang and V. K. N. Lau, “Robust Optimal Cross-Layer Designs for TDD-OFDMA Systems with Imperfect CSIT and Unknown Interference: State-Space Approach Based on 1-bit ACK/NAK Feedbacks”, IEEE Transactions on Communications, vol. 56, pp. 754-761, May 2008.

[1] R. Wang and V. K. N. Lau, “Cross Layer Design of Downlink Multi-antenna OFDMA Systems with Imperfect CSIT for Slow Fading Channels”, IEEE Transactions on Wireless Communications, vol. 6, pp. 2417-2421, July 2007.

Other Areas