Yuanzhu Chen

Affiliation Department of Computer Science Memorial University of Newfoundland Contact Email: yzchen AT mun|ca Phone: 1-709-864-6944 Office: ER 6031 Address: Department of Computer Science Memorial University of Newfoundland St. John's, NL, A1B 3X5, Canada	Erdös Number: 3
Mini Bio Post-doctoral researcher, Computing Science, Simon Fraser University, Burnaby, British Columbia, 2004-2005. (Co-hired by Dr. Jiangchuan Liu and Dr. Arthur Liestman.) Ph.D., Computing Science, Simon Fraser University, Burnaby, British Columbia, 1999-2004. (Thesis supervisor: Dr. Arthur Liestman.) B.Sc., Computer Science, Peking University, Beijing, China, 1995-1999. Shishi Middle School, Chengdu, China, 1989-1995. I have also visited Dartmouth College, USA South China University, China Korea Maritime University, Korea University of Prince Edward Island, Canada Acadia University, Canada Southwest University of Finance and Ecomonics, China Prairie View A&M University, USA Wuhan University, China Chinese Academy of Sciences, China Rutgers University, USA
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Research Interests

I am mostly interested in wireless communication networks, especially Mobile Ad Hoc Networks (MANET's). A mobile ad hoc network is a type of wireless communication network which, in general, consists of solely mobile hosts and dispenses with infrastructure. With limited transmission range and continuous mobility of the hosts, routing in ad hoc networks, among many other issues, is more challenging than in wired communication networks. When more efficient variations of existing routing algorithms are proposed for ad hoc networks, network clustering, in a different direction, eases routing by abstracting the topology to a simpler version. For example, graph domination provides a good formulation for network clustering.

One important application of the ad hoc networking technology is to implement Wireless Sensor Networks (WSN's). A WSN is a collection of sensors interconnected by wireless communication channels. Each sensor node is a small device that can collect data from its surrounding area, carry out simple computation, and communicate with other sensors or with the controlling authorities of the network. Long distance communications can be achieved in a multi-hop fashion. Such networks have been realized due to recent advances in micro-electro-mechanical systems and advanced wireless networking, and are expected to be widely used for such applications as environment monitoring, intrusion detection, and earthquake warning.

My other research interests include distributed computing, Web information retrieval, combinatorial optimization, approximation algorithms and heuristics, graph theory, iPhonization, and Androidization.

Graduate Students

1. WAQAR, Wasiq, MSc
2. CUI, Biru, PhD
3. WANG, Zehua, MEng
   (Co-supervised with Dr. Cheng Li. Completed in 2011)
4. LUO, Yan, MSc
   (Co-supervised with Dr. Orland Hoeber. Completed in 2011)
5. NGUGI, Anne, MSc: Rate adaptation for IEEE 802.11 wireless networks
   (Completed in 2008)
6. JIANG, Xingyan, MSc: Autonomous sensor deployment using distributed co-evolutionary computing
   (Co-supervised with Dr. Tina Yu. Completed in 2008)

Research Grants

• NSERC Discovery Grant: Exploration and utilization of the broadcast nature of multi-hop wireless networks at the link and network layers
• NSERC Discovery Grant: Scalable ad hoc and sensor networks
• NSF China: Intelligent Web information processing for the blind (60803106) — Co-PI
• Memorial University Startup Grant

Erdös Number

• 3 — via Dr. Arthur Liestman

Projects

• BEND, a Network Simulator 2 plug-in
• Cupids 400 iPhone navigation app
• MUN Science Orientation iPhone guide app
• ICHG Posters iPad app

Core Literature

Bibliography in multi-hop wireless networking

Publications selected all

Me on Google Scholar

• Conference articles
  1. Z. Wang, C. Li, and Y. Chen. PSR: Proactive source routing in mobile ad hoc networks. In Globecom, 2011. [pdf]
  2. Y. Luo, Y. P. Chen, and O. Hoeber. Wi-Fi-Based Indoor Positioning Using Human-Centric Collaborative Feedback. In ICC, 2011. [pdf]
  3. Z. Wang, Y. Chen and C. Li. Opportunistic data transfer in multi-hop wireless networks: an overview. In the Twentieth Annual Newfoundland Electrical and Computer Engineering Conference (NECEC), 2011.
  4. L. Qian and Y. P. Chen. Optimized Routing in Organization-Aware Multihop Wireless Networks (ORION). In MILCOM, 2010.
  5. T. Hu, Y. P. Chen, and W. Banzhaf. WiMAX Network Planning Using Adaptive-Population-Size Genetic Algorithm. In EvoStar, 2010. [pdf]
  6. J. Wang, Q. Li, and Y. P. Chen. User Comments for News Recommendation in Social Media. In the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2010.
  7. J. Wang, Q. Li, Y. P. Chen, and Z. Lin. Recommendation in Internet Forums and Blogs. In the 48th Annual Meeting of the Association for Computational Linguistics (ACL), 2010.
  8. J. Wang, Q. Li, Y. P. Chen, J. Liu, C. Zhang, and Z. Lin. News Recommendation in Forum-Based Social Media. In the 24th AAAI Conference on Artificial Intelligence (AAAI), 2010.
  9. Y. P. Chen and L. Qian. Organization-Aware Routing In Mission Critical Networks, in MILCOM, 2009. [pdf]
  10. A. Ngugi, Y. P. Chen, and Q. Li. Rate Adaptation with NAK-Aided Loss Differentiation in 802.11 Wireless Networks, in IEEE Globecom, 2009. [pdf]
  11. T. Hu, Y. P. Chen, W. Banzhaf, and Robert Benkoczi. An Evolutionary Approach to Planning IEEE 802.16 Networks, in the Eleventh Genetic and Evolutionary Computation Conference (GECCO), 2009. [poster]
  12. T. Hu, Y. P. Chen and W. Banzhaf. A Genetic Algorithmic Approach to Planning IEEE 802.16 Networks, the Seventeenth Annual Newfoundland Electrical and Computer Engineering Conference (NECEC), 2008.
  13. X. Jiang, Y. P. Chen, T. Yu. Dynamic Cooperative Coevolutionary Sensor Deployment via Localized Fitness Evaluation, in the Tenth International Conference on Parallel Problem Solving from Nature (PPSN), 2008. [pdf]
  14. Y. P. Chen, L. Qian and D. R. Vaman. Hierarchical Path Metric in Multi-Hop Wireless Networks, in International Wireless Communications and Mobile Computing Conference (IWCMC), 2008. [pdf]
  15. X. Jiang, Y. P. Chen, and T. Yu. Localized Distributed Sensor Deployment via Coevolutionary Computation, in the Third International Conference on Communications and Networking in China (ChinaCom), 2008. [pdf]
  16. J. Zhang, Y. P. Chen and I. Marsic. BEND: MAC-Layer Proactive Mixing Protocol for Network Coding in Multi-Hop Wireless Networks, the Ninth ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), 2008. [poster]
  17. Z. Fan, Y. P. Chen and H. Zhou. An Aggregator Deployment Protocol for Energy Conservation in Wireless Sensor Networks, in IEEE International Conference on Networking, Sensing and Control (ICNSC), 2008.
  18. J. Zhang, Y. P. Chen and I. Marsic. Network Coding Via Opportunistic Forwarding in Wireless Mesh Networks, in IEEE Wireless Communications & Networking Conference (WCNC), 2008. [pdf]
  19. H. Lin and Y. P. Chen. A Light-Weight Stream Cipher for Wireless Sensor Networks, the Sixteenth Annual Newfoundland Electrical and Computer Engineering Conference (NECEC), 2007.
  20. Y. P. Chen, J. Zhang and A. Ngugi. An Efficient Rate-Adaptive MAC for IEEE802.11, the Third International Conference on Mobile Ad-hoc and Sensor Networks (MSN), LNCS 4864, 2007. [pdf]
  21. J. Zhang, Y. P. Chen and I. Marsic. Persistent Pseudo-Clearance Problem in IEEE 802.11 Mesh Networks and its Multicast Based Solutions, the Fifteenth IEEE Workshop on Local and Metropolitan Area Networks (LANMAN), 2007. [pdf]
  22. J. Zhang, Y. P. Chen and I. Marsic. Adaptive MAC Scheduling Using Channel State Diversity for Wireless Networks, the Second International Conference on Wireless Communications, Networking and Mobile Computing (WiCom), 2006. [pdf]
  23. Y. P. Chen, D. Wang and J. Zhang. Variable-Base Tacit Communication: A New Energy Efficient Communication Scheme for Sensor Networks, the First International Conference on Integrated Internet Ad hoc and Sensor Networks (InterSense), 2006. [pdf]
  24. Y. P. Chen, A. L. Liestman and J. Liu. Energy-Efficient Data Aggregation Hierarchy for Wireless Sensor Networks, the Second International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks (QShine), 2005. [pdf]
  25. Y. P. Chen and A. L. Liestman. Approximating Minimum Size Weakly-Connected Dominating Sets for Clustering Mobile Ad Hoc Networks, the Third ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), PP. 157-164, 2002. [pdf]
• Journal articles
  26. Z. Wang, Y. Chen, and C. Li. CORMAN: a Novel Cooperative Opportunistic Routing Scheme in Mobile Ad Hoc Networks, to appear in IEEE Journal on Selected Areas in Communications.
  27. Z. Wang, Y. Chen, and C. Li. A New Loop-Free Proactive Source Routing Scheme for Opportunistic Data Forwarding in Wireless Networks, in IEEE Communication Letters, 15(11):1184-1186, November 2011.
  28. Z. Fan and Y. P. Chen. Mobility-assisted Hierarchy for Efficient Data Collection in Wireless Sensor Networks, in Journal of Communications, 5(9):665-673, 2010.
  29. Q. Li, J. Wang, Y. P. Chen and Z. Lin. User comments for news recommendation in forum-based social media, in Information Sciences, 180(24):4929-4939, 2010. [pdf]
  30. J. Zhang, Y. P. Chen, and I. Marsic. MAC-Layer Proactive Mixing for Network Coding in Multi-Hop Wireless Networks, Computer Networks, 54(2):196-207, 2010. [pdf]
  31. Q. Li and Y. P. Chen. Personalized Text Snippet Extraction Using Statistical Language Models, in Pattern Recognition, 43(1):378-386, January 2010. [pdf]
  32. Q. Li, Y. P. Chen, S.-H. Myaeng, Y. Jin, and B.-Y. Kang. Concept Unification of Terms in Different Languages via Web Mining for Information Retrieval, Information Processing & Management, 45(2):245-262, March 2009.
  33. Y. P. Chen, J. Zhang and I. Marsic. Link-Layer-and-Above Diversity in Multi-Hop Wireless Networks, IEEE Communications Magazine, 47(2):118-124, February 2009. [pdf]
  34. B. M. Kim, Q. Li, A. E. Howe and Y. P. Chen. Collaborative Web Agent Based on Friend Network, Applied Artificial Intelligence, 22(4):309-330, April 2008.
  35. J. Zhang, Y. P. Chen, and I. Marsic. MAC Scheduling Using Channel State Diversity for High-Throughput IEEE 802.11 Mesh Networks, IEEE Communications Magazine, 45(11):94-99, November 2007. [pdf]
  36. Y. P. Chen, A. L. Liestman and J. Liu. A Hierarchical Energy-Efficient Framework for Data Aggregation in Wireless Sensor Networks, IEEE Transactions on Vehicular Technology, 55(3):789-796, May 2006. [pdf]
  37. Y. P. Chen and A. L. Liestman. Maintaining Weakly-Connected Dominating Sets for Clustering Ad Hoc Networks, Ad Hoc Networks, 3(5):629-642, September 2005. [pdf]
  38. Y. P. Chen and A. L. Liestman. A Zonal Algorithm for Clustering Ad Hoc Networks, International Journal of Foundations of Computer Science. 14(2):305-322, April 2003. [pdf]
• Book chapters
  39. Y. P. Chen and Y. Wang. Cooperation and Interference in Wireless Mesh Networks, in Cooperative Wireless Communications, eds. Y. Zhang, H. H. Chen and M. Guizani. CRC Press, 2009. [pdf]
  40. Q. Li, Y. P. Chen, and Z. Lin. Filtering Techniques for Selection of Contents and Products, in Personalization of Interactive Multimedia Services: A Research and Development Perspective, eds. J. J. Pazos-Arias, C. D. Kloos and M. L. Nores. Nova Science Publishers, 2008.
  41. Y. P. Chen, J. Zhang, and I. Marsic. Enhancing Efficiency and Effectiveness of 802.11 MAC in Wireless Mesh Networks, in Wireless Mesh Networking: With 802.16, 802.11, and ZigBee, ed. G. Aggelou. McGraw-Hill Professional Publishing, 2008. [pdf]
  42. Y. P. Chen, A. L. Liestman, and J. Liu. Clustering Algorithms for Ad Hoc Wireless Networks, in Ad Hoc and Sensor Networks, eds. Y. Pan and Y. Xiao. Nova Science Publishers, 2004. [pdf]

Courses

Year	Graduate Courses	Undergrad Courses
2010-11		CS-4759: Computer Networks CS-4768: Software Development for Mobile Devices (AKA: the iPhone course) CS-3715: Network Computing with Web Applications
2009-10	CS-6782: Experimental Computer Networking CS-6777: Mobile Ad Hoc Networking	CS-4768: Software Development for Mobile Devices (AKA: the iPhone course) CS-3715: Network Computing with Web Applications
2008-09		CS-4759: Computer Networks CS-3715: Network Computing with Web Applications
2007-08	CS-6782: Experimental Computer Networking
2006-07		CS-2711: Introduction to Algorithms and Data Structures CS-3715: Network Computing with Web Applications
2005-06	CS-6777: Mobile Ad Hoc Networking	CS-2710: Object-Oriented Programming II
2004-05		CMPT-212@SFU: Object-Oriented Applications Design in C++

Schedule

Academic Service

• Technical Program Committee: IEEE International Conference on Communications (ICC 2012)
• Technical Program Committee: 8th Workshop on Wireless Ad hoc and Sensor Networks (WWASN 2011), in conjunction with IEEE 31st International Conference on Distributed Computing System (ICDCS 2011)
• Technical Program Committee: IEEE Global Communications Conference (GLOBECOM 2011)
• Technical Program Committee: 3rd International Conference on Ad Hoc Networks (AdHocNets 2011)
• Technical Program Committee: IEEE International Conference on Communications (ICC 2011)
• Technical Program Committee: 7th International Wireless Communications and Mobile Computing Conference (IWCMC 2011)
• Technical Program Committee: 9th Annual Conference on Communication Networks and Services Research (CNSR 2011)
• Technical Program Committee: 25th Biennial Symposium on Communications (QBSC 2010)
• Technical Program Committee: 4th International Conference on Management of e-Commerce and e-Government (ICMeCG2010)
• Technical Program Committee: 10th IEEE International Conference on Computer and Information Technolgoy (CIT 2010)
• Technical Program Committee: 2nd International Conference on Ad Hoc Networks (AdHocNets 2010)
• Technical Program Committee: 7th Workshop on Wireless Ad hoc and Sensor Networks (WWASN 2010), in conjunction with IEEE 30th International Conference on Distributed Computing System (ICDCS 2010)
• Technical Program Committee: 3rd International Workshop on Sensor Networks (SN 2010), in conjunction with IEEE 30th International Conference on Distributed Computing System (ICDCS 2010)
• Technical Program Committee: 8th Annual Conference on Communication Networks and Services Research (CNSR 2010)
• Technical Program Committee: 6th International Wireless Communications and Mobile Computing Conference (IWCMC 2010)
• Technical Program Committee: IEEE Global Communications Conference (GLOBECOM 2010)
• Technical Program Committee: IEEE Wireless Communications & Networking Conference (WCNC 2010)

Portal

• Weather in St. John's.
• HealthMap

Networking

• Key words for use in RFCs to indicate requirement levels — RFC 2119
• Requirements for Internet Hosts -- Communication Layers — RFC 1122
• Some Internet Architectural Guidelines and Philosophy — RFC 3439
• DTNRG, Delay Tolerant Networking Research Group
• How to start research in computer networking, a note from Ahmed Helmy.
• Wireless tools for Linux.
• Wireless networking info, by Ben Gross.
• 2G, 3G, 4G Wireless Tutorial, by Brough Turner.
• CRAWDAD, the Community Resource for Archiving Wireless Data At Dartmouth.
• Internet World Stats.

Programming and documentation references

• Class reference for ns-2.33
• iOS Reference Library for software development on iPhone, iPod Touch, and iPad devices
• btstack, a portable user-space Bluetooth stack
• JDK 5.0 Documentation
• Programmable Web
• C++ resources
• Linux command cheatsheet
• SQLite quick start
• Icon Finder
• Shutterstock Images
• iStockphoto.com
• LaTeX

Photography

• My photography blog: new Newfoundland photos added.
• Photo.Net: Whether you are a learner or a veteran of photography, this will be a terrific source.
• Multi Cam 1000 AF Module: Learn to use Nikon AF exemplified by D200.
• Manuals for Nikon gears.
• "Nikonian".
• Image quality, by Imatest.
  
• Image sensor comparison chart for digital cameras.
• Anything you can't find about Nikon cameras?
• Nikon lens compatibility summary

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