Description: Description: U:\public_html\index_files\spacer.gif

 

Description: Description: U:\public_html\index_files\clear.gif

Description: Description: U:\public_html\index_files\clear.gif

Description: Description: U:\public_html\index_files\p_lok.jpg

Prof. Tat M. Lok

 

Associate Professor

 

BSc (CUHK), MSEE, PhD (Purdue)

SMIEEE

 

Tel: (852) 3943-8455

Fax: (852) 2603-5032

Email: t m l o k @ i e . c u h k . e d u . h k

http://personal.ie.cuhk.edu.hk/~tmlok/

 

I am looking for students interested in pursuing a Ph. D. degree. A research assistant position is also available in the general area of wireless communications. Interested candidates should send their CVs to me.

 

Biography

Description: Description: U:\public_html\index_files\clear.gif

Tat M. Lok received the BSc degree in electronic engineering from the Chinese University of Hong Kong, and the MSEE degree and the PhD degree in electrical engineering from Purdue University. He was a post-doctoral research associate at Purdue University.

 

He then joined the Chinese University of Hong Kong, where he is currently an associate professor. His research interests include communication theory, communication networks, signal processing for communications and wireless systems. He has served on TPCs of many international conferences including IEEE ICC, VTC, Globecom, WCNC, ISIT, and etc. He has also served on the editorial boards of several international journals including the IEEE Transactions on Vehicular Technology and the IEEE Transactions on Wireless Communications.

Description: Description: U:\public_html\index_files\clear.gif

Research Interests

Description: Description: U:\public_html\index_files\clear.gif

Description: Description: U:\public_html\index_files\arrow_y.gif

Wireless Communications

Description: Description: U:\public_html\index_files\arrow_y.gif

Communication Theory

Description: Description: U:\public_html\index_files\arrow_y.gif

Signal Processing for Communications

 

 

Description: Description: U:\public_html\index_files\clear.gif

Courses

Description: Description: U:\public_html\index_files\clear.gif

Description: Description: U:\public_html\index_files\arrow_y.gif

Digital Communications

Description: Description: U:\public_html\index_files\arrow_y.gif

Signals and Systems

Description: Description: U:\public_html\index_files\arrow_y.gif

Principles of Communication Systems

Description: Description: U:\public_html\index_files\arrow_y.gif

Wireless Communications

Description: Description: U:\public_html\index_files\clear.gif

Recent Projects

Description: Description: U:\public_html\index_files\clear.gif

Description: Description: U:\public_html\index_files\arrow_y.gif

Network coded interference alignment

Description: Description: U:\public_html\index_files\arrow_y.gif

Power control strategies for cooperative wireless systems

Description: Description: U:\public_html\index_files\arrow_y.gif

Design of wireless cooperation via flow calculus

Description: Description: U:\public_html\index_files\arrow_y.gif

Optimal assignment of resources for multiuser communication systems

Description: Description: U:\public_html\index_files\clear.gif

Selected Publications

Description: Description: U:\public_html\index_files\clear.gif

Recent journal papers:

Description: Description: U:\public_html\index_files\arrow_y.gif

Mengjie Xie and T. M. Lok, “SINR Balancing via Base Station Association, Beamforming and Power Control in Downlink Multicell MISO Systems," IEEE Transactions on Wireless Communications, to appear.

Description: Description: U:\public_html\index_files\arrow_y.gif

R. Hu and T. M. Lok, “Pareto Optimality for the Single-Stream Transmission in Multiuser Relay Networks,” IEEE Trans. on Wireless Commun., Oct. 2017.

Description: Description: U:\public_html\index_files\arrow_y.gif

M. Xie, and T.M.Lok, “Antenna Selection in RF-Chain Limited MIMO Interference Networks under Interference Alignment,” IEEE Trans. Veh. Tech., May 2017.

Description: Description: U:\public_html\index_files\arrow_y.gif

R. Hu, and T. M. Lok, “Towards Pareto Optimality in Multiuser Relay Networks,” IEEE Trans. Veh. Tech., Jan. 2017.

Description: Description: U:\public_html\index_files\arrow_y.gif

Y. Wei and T. M. Lok, “Interference alignment and power allocation for the MIMO X channels with multiple layers of relays,” EURASIP Journal on Wireless Communications and Networking, Sep. 2016.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen, X. Lin and T. M. Lok, “Dynamic Spectrum Leasing under Uncertainty: Modeling, Analysis and Algorithms,” IEEE Trans. Veh. Tech., Nov. 2015.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen and T. M. Lok, “Asynchronous Distributed Downlink Beamforming and Power Control in Multi-Cell Networks,” IEEE Trans. on Wireless Commun., Jul. 2014.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen and T. M. Lok, “Dynamic Power Allocation for Downlink Interference Management in a Two-Tier OFDMA Network,” IEEE Trans. Veh. Tech., Oct. 2013.

Description: Description: U:\public_html\index_files\arrow_y.gif

K. Zhou and T. M. Lok, “Resource allocation for secondary users with chance constraints based on primary links control feedback information,” EURASIP Journal on Wireless Communications and Networking, Nov. 2012.

Description: Description: U:\public_html\index_files\arrow_y.gif

H. Fang, X. Lin and T. M. Lok, “Power Allocation for Multiuser Cooperative Communication Networks under Relay Selection Degree Bounds,” IEEE Trans. Veh. Tech., Sep. 2012.

Description: Description: U:\public_html\index_files\arrow_y.gif

X. Lin and T. M. Lok, “Distributed Power Control for One-to-Many Transmissions in Gaussian Interference Channels,” IEEE Trans. Commun., Aug. 2012.

Description: Description: U:\public_html\index_files\arrow_y.gif

C. Y. Ng and T. M. Lok, “Grouping Algorithm for Partner Selection in Cooperative Transmission,” Wireless Personal Communications, Sep. 2011.

Description: Description: U:\public_html\index_files\arrow_y.gif

K. Zhou and T. M. Lok, “Power Control for Uplink Transmission with Mobile Users,” IEEE Trans. Veh. Tech., Jun. 2011.

Description: Description: U:\public_html\index_files\arrow_y.gif

X. Lin and T. M. Lok, “Distributed Wireless Information Flow Allocation in Multiple Access Networks,” EURASIP Journal on Wireless Communications and Networking, Jun. 2011.

Description: Description: U:\public_html\index_files\arrow_y.gif

C. Y. Ng, Kenneth W. Shum, C. W. Sung, and T. M. Lok, “A Layered Decomposition Framework for Resource Allocation in Multiuser Communications,” IEEE Trans. Veh. Tech., Feb. 2011.

Description: Description: U:\public_html\index_files\arrow_y.gif

Cho Yiu Ng, Kenneth W. Shum, Chi Wan Sung, and Tat M. Lok, “Rate Allocation for Cooperative Orthogonal-Division Channels with Dirty-Paper Coding,” IEEE Trans. on Communications, Oct. 2010.

Description: Description: U:\public_html\index_files\arrow_y.gif

D. Chatterjee, T. F. Wong, and T. M. Lok, "Cooperative transmission in a wireless relay network based on flow management," IEEE Transactions on Communications, Oct. 2010.

Description: Description: U:\public_html\index_files\arrow_y.gif

Cho Yiu Ng, Tat Ming Lok, Tan F. Wong, “Pricing Games for Distributed Cooperative Transmission,” IEEE Trans. Veh. Tech., Sep. 2010.

 

 

 

Recent conference papers:

Description: Description: U:\public_html\index_files\arrow_y.gif

Yi Wei, Junlin Yu, Tat M. Lok and Lin Gao, “A Novel Mobile Data Plan Design from the Perspective of Data Period,” IEEE ICCS 2016, Shenzhen, China.

Description: Description: U:\public_html\index_files\arrow_y.gif

T. T. Chan, and T. M. Lok, “Interference Alignment with Physical-Layer Network Coding in MIMO Relay Channels,” IEEE ICC 2016.

Description: Description: U:\public_html\index_files\arrow_y.gif

Mengjie Xie and Tat M. Lok, “Access Point Selection and Auction-based Scheduling in Uplink MU-MIMO WLANs,” IEEE ICC 2016.

Description: Description: U:\public_html\index_files\arrow_y.gif

Ruixue Hu and Tat M. Lok, “Power Splitting and Relay Optimization for Two-way Relay SWIPT Systems,” IEEE ICC 2016.

Description: Description: U:\public_html\index_files\arrow_y.gif

Mengjie Xie and T. M. Lok, “Distributed Joint Transmitter-Receiver Beamforming and Power Allocation in MIMO Interference Channel with Interference Alignment,” IEEE VTC 2014 Fall, September 2014, Vancouver, Canada.

Description: Description: U:\public_html\index_files\arrow_y.gif

WEI Yi and T. M. LOK, “Optimization of Interference Alignment in MIMO Channel with Multiple Layers of Relays,” IEEE VTC 2014 Fall, September 2014, Vancouver, Canada.

Description: Description: U:\public_html\index_files\arrow_y.gif

HU Ruixue and T. M. LOK, “Distributed Power Control and Beamforming in Multiuser Relay Network,” IEEE VTC 2014 Fall, September 2014, Vancouver, Canada.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen and T. M. Lok, “Downlink Beamforming and Power Control With Per-Antenna Power Constraints,” IEEE WCNC,, Apr. 2014, Istanbul, Turkey.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen and T. M. Lok, “Power Control for Underlay In-band Spectrum Sharing in Device-to-Device Communications,” IEEE WCNC, Apr. 2014, Istanbul, Turkey.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen, H. Fang and T. M. Lok, “Design of Downlink Beamformer for Real-time and Non-real-time Services,” IEEE WCNC, Apr. 2013, Shanghai, China.

Description: Description: U:\public_html\index_files\arrow_y.gif

S. Shen, X. Lin and T. M. Lok, “Dynamic Spectrum Leasing under Uncertainty: a Stochastic Variational Inequality Approach,” IEEE WCNC, Apr. 2013, Shanghai, China.

Description: Description: U:\public_html\index_files\arrow_y.gif

Kenan Zhou and Tat Ming Lok, “Joint Spectrum Sharing and Power Allocation for Secondary Users in Cognitive Radio Networks,” IEEE WCNC, Mar. 2011, Cancun, Mexico.

Description: Description: U:\public_html\index_files\arrow_y.gif

Xingqin Lin, and Tat Ming Lok, “Relay Assignment in Multiuser Cooperative Radio Networks with QoS Guarantee,” IEEE WCNC, Mar. 2011, Cancun, Mexico.

Description: Description: U:\public_html\index_files\arrow_y.gif

Cho Yiu Ng, and Tat Ming Lok, “Grouping Algorithm for Partner Selection in Cooperative Transmission,” the Second International Conference on Ubiquitous and Future Networks (ICUFN 2010), Jun 2010, Jeju, Korea.

Description: Description: U:\public_html\index_files\arrow_y.gif

W. P. Tam, and T. M. Lok, “Joint Grouping and Scheduling in Complexity-Constrained Broadcasting Ad-Hoc Networks,” the Second International Conference on Ubiquitous and Future Networks (ICUFN 2010), Jun 2010, Jeju, Korea.

Description: Description: U:\public_html\index_files\arrow_y.gif

K. L. Lam, W. P. Tam, and T. M. Lok, “A Cooperative Graph Approach for Cooperative Routing in Delay-Sensitive Systems,” IEEE 71st Vehicular Technology Conference: VTC2010-Spring, 16–19 May 2010, Taipei, Taiwan.

Description: Description: U:\public_html\index_files\arrow_y.gif

Kenon Zhou and T. M. Lok, “Optimal Power Allocation for Relayed Transmission Through A Mobile Relay Node,” IEEE 71st Vehicular Technology Conference: VTC2010-Spring, 16–19 May 2010, Taipei, Taiwan.

Description: Description: U:\public_html\index_files\arrow_y.gif

W. P. Tam and T. M. Lok, “Multi-Flow Transmission in Cellular Systems with Optimal Scheduling and Utility Maximization,” IEEE 71st Vehicular Technology Conference: VTC2010-Spring, 16–19 May 2010, Taipei, Taiwan.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description: Description: U:\public_html\index_files\clear.gif