My reserach interests includes

Here are the recent news. All the news can be found here.

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Here are some selected publications. A complete list of publications is here.

• Blender: Toward Practical Simulation Framework for BLE Neighbor Discovery

  Y. Ding, T. Li, J. Liang and D. Wang

  Proceedings of the 25th International ACM Conference on Modeling Analysis and Simulation of Wireless and Mobile Systems
• Age of Information in SIC-based Non-Orthogonal Multiple Access

  Q. Ren, T.T. Chan, J. Liang and H. Pan

  IEEE WCNC 2022
• Timely status update: Should ARQ be used in two-hop networks?

  J. Feng, H. Pan, T.T. Chan and J. Liang

  IEEE ICC 2022
• DNN-aided Low-complexity Physical-layer Network Coding Enabled Non-orthogonal Multiple Access

  G. Chen, T.T. Chan, H. Pan and J. Liang

  2022 IEEE 19th Annual Consumer Communications & Networking Conference (CCNC)
• ROFA: An OFDMA system for Ultra-Reliable Wireless Industrial Networking

  J. Liang, and S. C. Liew

  arXiv preprint arXiv:2109.00979, submitted to IEEE Transactions on Mobile Computing (TMC)
• Design and Implementation ofTime-Sensitive Wireless IoT Networks on Software-Defined Radio

  J. Liang, H. Chen and S. C. Liew

  IEEE Internet of Things Journal (IoTJ), July 2021 (early access)
• Is Multichannel Access Useful for Timely Information Update?

  J. Liang, H. Pan and S. C. Liew

  IEEE Wireless Communications Letters (WCL), vol. 10, no. 4, pp. 815-819, April 2021
• Timely Information Update With Nonorthogonal Multiple Access

  H. Pan, J. Liang, S. C. Liew, V. C. M. Leung and J. Li

  IEEE Transactions on Industrial Informatics (TII), vol. 17, no. 6, pp. 4096-4106, June 2021
• Practical NOMA-Based Coordinated Direct and Relay Transmission

  H. Pan, J. Liang and S. C. Liew

  IEEE Wireless Communications Letters (WCL), vol. 10, no. 1, pp. 170-174, Jan. 2021
• Coding of Multi-Source Information Streams With Age of Information Requirements

  H. Pan, S. C. Liew, J. Liang, V. C. M. Leung and J. Li

  IEEE Journal on Selected Areas in Communications (JSAC), vol. 39, no. 5, pp. 1427-1440, May 2021
• Sporadic Ultra-Time-Critical Crowd Messaging in V2X

  Y. Shao, S. C. Liew and J. Liang

  IEEE Transactions on Communications (TCom), vol. 69, no. 2, pp. 817-830, Feb. 2021
• Network-coded multiple access on unmanned aerial vehicle

  H. Pan, S.C. Liew, J. Liang, Y. Shao, L. Lu

  IEEE Journal on Selected Areas in Communications (JSAC), vol. 36, no. 9, pp. 2071-2086, Sept. 2018
• Age of Information with Joint Packet Coding in Industrial IoT

  T. -T. Chan, H. Pan and J. Liang

  IEEE Wireless Communications Letters (WCL) (early access)
• Software-Defined Radio Implementation of Age-of-Information-Oriented Random Access

  Z. Han*, J. Liang*, Y. Gu and H. Chen

  2020 The 46th Annual Conference of the IEEE Industrial Electronics Society (IECON), 2020, pp. 4374-4379.

  Remark: * Two authors have the same contributions
• Sporadic Ultra-Time-Critical Messaging in V2X

  Y. Shao, S. C. Liew and J. Liang

  2018 IEEE International Conference on Communications (ICC), 2018, pp. 1-7.
• Engineering Education for Sustainable Development and Global Citizenship: A Course-level Implementation Case in Hong Kong

  R. Y. Chan, C. K. Chan, M. Tahernia, J. Liang and Q. Cao,

  2018 ASEE Annual Conference and Exposition.
• Direct evidence of engineering students' generic skills learning: From research to practice in an undergraduate course in information engineering

  R. Y. Chan, C. K. Chan, C. Lau, J. Liang, H. Huang, Q. Cao and M. Tahernia

  2017 IEEE Frontiers in Education Conference (FIE), 2017, pp. 1-5.

Here are a summary list of my projects. A complete list of projects is here.

The DARPA Spectrum Collaboration Challenge (SC2)

• It was the first-of-its-kind collaborative machine-learning competition to overcome scarcity in the radio frequency (RF) spectrum.
• Built a real-time wireless system that leverage Artificial Intelligence to access the spectrum without interfering the other signals.
• Cooperated with the research group from the North-Western University
• Qualified for Preliminary Event 1 & 2 (PE1 & 2) and presented in the events hosted in Johns Hopkins University Applied Physics Laboratory.

Keywords

Software-define Radio Wireless System Design Signal Processing

Ultra-reliable OFDMA Systems for IIoT

TBD

Keywords

Software-define Radio Wireless System Design Signal Processing

Wireless Time-Sensitive Network (TSN) for IIoT

• A real-time wireless system that is implemented on PC-USRP using GNURadio, targeting to provide TSN service to the upper layer with high accuracy synchronization.
• Achieving synchronization among nodes to within 100ns, and the end-to-end latency can be down to 3.75ms.
• Easy-deployable and reconfigurable for many other time-critical wireless applications.

Keywords

Software-define Radio Signal Processing Synchornization

Network-Coded Multiple Access on Unmanned Aerial Vehicle

• Design and implement a wireless system running on the top of real Unmanned Aerial Vehicles.
• Leveraging the Embeded USRP E310 to transmit and receive signals to evaluating the algorithm.

Keywords

Software-define Radio Wireless System Design Signal Processing

A generic real-time Time-Slotted System on SDR

• Built a full-stack time-slotted system based on Software-defined radio platform (USRP and GNURadio) that could be used to verify many MAC scheme (e.g. Coded Slotted Aloha, Physical-layer Network
• Served as an implementation platform for several projects in our research groups.

Keywords

Software-define Radio Wireless System Design

Design and implementation of high performance decoders for next generation wireless systems

• Implemented a reduced-complexity convolutional decoder for Physical-layer Network Coding (PNC) in GNU Radio.
• Built the first single-GPP based development environment for PNC with a video streaming demonstration.

Keywords

Software-define Radio Wireless System Design Signal Processing

See all the Projects...