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Networks and Cyber Physical Systems Lab (NECPHY-Lab)

 

NECPHY-Lab was founded by Dr. Long Le with research grants from CFI Leaders Opportunity Fund and Quebec government. NECPHY-Lab commits to promote excellent research and education in wireless communications and networking as well as their applications in Cyber Physical Systems (CPSs). Application areas of interest include smart grids, healthcare, and transportation. Our current research focuses are the following

- Cognitive radio and dynamic spectrum sharing
- Radio resource management for heterogeneous wireless networks
- Green communications and networking
- Network control and optimization
- Smart grids and power systems


We have rich sets of signal generation and measurement equipments including vector signal generator, arbitrary waveform generator, real-time and portable spectrum analyzers, oscilloscope, logic analyzer. In addition, we have several wireless network testbeds supporting R&D activities in various applications including heterogeneous cognitive radio testbeds, wireless sensor-based testbeds supporting healthcare and emerging applications. We look forward to collaboration and partnership opportunities with industries in these application areas.

 

Biography of Dr. Long Le: Dr. Long Le received his PhD degree from University of Manitoba in 2007, M.Eng. degree from Asian Institute of Technology (AIT)  in 2002, and B.Eng. degree from Ho Chi Minh City University of Technology in 1999. He joined INRS-EMT, University of Quebec as a tenure-track faculty member in October 2010. Before that he was a postdoctoral researcher at Massachusetts Institute of Technology (MIT). Dr. Long Le a member of the editorial board of IEEE Communications Surveys and Tutorials and IEEE Wireless Communications Letters. He has served as technical program committee co-chairs of the New Results track at IEEE VTC’2012-Fall, the Wireless Networks track at IEEE VTC’2011-Fall and the Cognitive Radio and Spectrum Management track at IEEE PIMRC’2011. Dr. Long Le is a Senior Member of IEEE.

More information about Dr. Long Le can be found in his Curriculum Vitae.

 

Announcement: EURASIP Special Issue on "5G Wireless Mobile Technologies". Submission deadline: 1 Sept. 2014.

 

Contact information:

Long Le, PhD
Assistant Professor
Institut National de la Recherche Scientifique (INRS)
University of Quebec
800 de la Gauchetičre West, Suite 6900
Montreal, QC, H5A 1K6, Canada
Phone: 1-514-228-7015 (Office),
Cell: 1-514-889-0235
Email: long.le@emt.inrs.ca
 

For prospective students: There are openings for well-motivated PhD students with financial support in my group at INRS, University of Quebec. Candidates with master degree and strong knowledge of wireless communication, networking, and applied math (e.g., optimization, queueing, game theory) are preferred. Interested candidates are encouraged to send emails describing their research background and interests with CV, transcripts, sample publications (if available) to me at long.le@emt.inrs.ca

Want to know: Some potential reasons to study in Montreal and INRS:

- Montreal is a great bilingual city with exciting activities throughout the year.
Want to know something about Montreal, please click: Video1 and Video2

- Montreal and nearby Ottawa areas are high-tech centers of Canada, which offer great opportunities to interact with industries

- Fast processing of admission letter (one month)

 

Selected Publications:  (Here is the full list of publications)

1. Hetnets/femtocell networks, Green communications
- Long B. Le, Dusit Niyato, Ekram Hossain, Dong In Kim, and Dinh T. Hoang, "QoS-aware and energy-efficient resource management in OFDMA femtocells," IEEE Transactions on Wireless Communications, vol. 12, no. 1, pp. 180-194, Jan. 2013. (Listed among top-accessed IEEE TWC papers in January, February, March, and May 2013)
- Duy Ngo, Long B. Le, and Tho Le-Ngoc, "Distributed Pareto-optimal power control for utility maximization in femtocell networks,"
IEEE Transactions on Wireless Communications, vol. 11, no. 10, pp. 3434-3446, Oct. 2012. (Listed among top-accessed IEEE TWC papers in October and November 2012)
- Duy Ngo, Long B. Le, Tho Le-Ngoc, Ekram Hossain, and Dong In Kim, "Distributed interference management in two-tier CDMA femtocell networks,"
IEEE Transactions on Wireless Communications, vol. 11, no. 3, pp. 979-989, Mar. 2012. (Listed among top-accessed IEEE TWC papers in March, April, and May 2012)
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N. Saquib, E. Hossain, Long B. Le, and D. I. Kim, "Interference management in OFDMA femtocell networks: Issues and approaches," IEEE Wireless Communications, vol. 19, no. 3, pp. 86-95, June 2012. (Listed among top-accessed IEEE WC papers in March 2013).

2. Smartgrids and power systems
- Duong Nguyen and Long B. Le, "Optimal bidding strategy for microgrids considering renewable energy and building thermal dynamics," IEEE Transactions on Smart Grid,
vol. 5, no. 4, pp. 1608-1620, July 2014.
- Duong Nguyen and Long B. Le, "Joint optimization of electric vehicle and home energy scheduling considering user comfort preference," IEEE Transactions on Smart Grid,
vol. 5, no. 1, pp. 188-199, Jan. 2014.
- Duong Nguyen and Long B. Le, "Optimal energy management for cooperative microgrids with renewable energy resources," IEEE SmartGridCom'2013, Oct. 2013.
- Hieu Nguyen, Duong Nguyen, and Long B. Le, "Home energy management with generic thermal dynamics and user temperature preference," IEEE SmartGridCom'2013, Oct. 2013.

3. Network control and optimization
- Long B. Le,
Eytan Modiano, and Ness B Shroff, "Optimal control of wireless networks with finite buffers,"  IEEE/ACM Transactions on Networking, vol. 20, no. 4, pp. 1316–1329, Aug. 2012.
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Guner D. Celik, Long B. Le, and Eytan Modiano, "Dynamic server allocation over time varying channels with switchover delay," IEEE Transactions on Information Theory,
vol. 58, no. 9, pp. 5856–5877, Sept. 2012.
- Long B. Le, Eytan Modiano, Changhee Joo, and Ness B. Shroff, "Longest-queue-first scheduling under SINR interference model," ACM MobiHoc'2010.
- Hyang-Won Lee, Eytan Modiano, and Long B Le, "Distributed throughput maximization in wireless networks via random power allocation," IEEE Transactions on Mobile Computing,
vol. 11, no. 4, pp. 577-590, April 2012.
- Long B. Le, K. Jagannathan, and Eytan Modiano, ``Delay analysis of maximum weight scheduling in wireless ad hoc networks,'' Conference on Information Sciences and Systems (CISS'2009,) Johns Hopkins University USA.
 

4. Cognitive radio and dynamic spectrum sharing
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Long B. Le, Ekram Hossain, "Resource allocation for spectrum underlay in cognitive radio networks," IEEE Transactions on Wireless Communications, vol. 7, no. 12, pp. 5306-5315, Dec. 2008.
- Dong In Kim, Long B. Le, and Ekram Hossain, "Joint rate and power allocation for cognitive radios in dynamic spectrum access environment,"
IEEE Transactions on Wireless Communications, vol. 7, no. 12, pp. 5517-5527, Dec. 2008.
- Patrick Mitran,  Long B. Le, and Catherine Rosenberg, "Queue-aware resource allocation for downlink OFDMA cognitive radio networks," 
IEEE Transactions on Wireless Communications, vol. 9, no. 10, pp. 3100-3111, Oct. 2010.
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Le Thanh Tan and Long B. Le, "Channel assignment with access contention resolution for cognitive radio networks," IEEE Transactions on Vehicular Technology, vol. 61, no. 6, pp. 2808-2823, July 2012.
- Le Thanh Tan and Long B. Le, "Distributed MAC protocol for cognitive radio networks: Design, analysis, and optimization," IEEE Transactions on Vehicular Technology, vol. 60, no. 8, Oct. 2011.
- Ekram Hossain, Long B. Le, Natasha Devroye, Mai Vu, "Cognitive radio: From theory to practical network engineering," invited chapter in Advances in Wireless Communications, (Eds. Vahid Tarokh and I. Blake), Springer, 2009.
 

5.  Cross-layer design and analysis
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Long B. Le, Ekram Hossain, “Cross-layer optimization frameworks for  multihop wireless networks using cooperative diversity,” IEEE Transactions on Wireless Communications, vol. 7, no. 7,  pp. 2592-2602, July 2008.
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Long B. Le, Sergiy A. Vorobyov, K Phan, Tho Le-Ngoc, "Resource allocation and QoS provisioning for wireless relay networks," invited chapter in Quality of Service Architectures for Wireless Networks: Performance Metrics and Management (Editors Sasan Adibi, Raj Jain), IGI Global, 2010.
- Long B. Le, E. Hossain, and M. Zorzi, "Queueing analysis for GBN and SR ARQ protocols under dynamic radio link adaptation with non-zero feedback delay, " IEEE Transactions on Wireless Communications, vol. 6. no. 9, pp. 3418 - 3428, Sept. 2007.
- Long B. Le, E. Hossain, and Attahiru S. Alfa, "Delay statistics and throughput performance for multi-rate wireless networks under multiuser diversity,"  IEEE Transactions on Wireless Communications, vol. 5, no. 11, pp. 3234-3243, Nov. 2006.
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Long B. Le , E. Hossain, and Attahiru S. Alfa, "Service differentiation in multi-rate wireless networks with weighted round-robin scheduling and ARQ-based error control," IEEE Transactions on Communications, vol. 54, no. 2,  pp. 208-215, Feb. 2006.

 

 


 

 

 

 

   

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This site was last updated 07/01/14