Wenzhong Li

Ph.D. State Key Laboratory for Novel Software and Technology Department of Computer Science and Technology Nanjing University 22 Hankou Road, Nanjing, China Email: lwz#dislab.nju.edu.cn

Teaching

• Fall 2009: COMP 22035 Computer Algorithms Design and Analysis
  - Tutorial
  - Algorithm Course homepage
  
  

Research Interests

• Pervasive Computing
• Wireless Networks
• Data Management
• P2P Computing
  

  Please refer to our SWIM homepage for more details of research in wireless networks and refer to DISLAB for more information of our group.

  Student recruitment

Projects

• Current Projects (as Principle Investigator)

  • 2009-2011, "Efficient Cache Management Schemes in Mobile Ad Hoc Networks", sponsored by the National Natural Science Foundation of China (No. 60803111)

    Data caching has been shown to be efficient in accelerating information access. Traditional cache management strategies are mainly focused on data characters. They work independently without cooperation between nodes, which is unsuitable for data access in dynamic mobile ad hoc networks. This project aims to investigate efficient caching schemes in multi-hop wireless ad hoc networks based on cooperation and application features. We focus on the following tasks. First, we analyze different influence factors on cache performance and construct a theoretical model for cooperative caching in mobile ad hoc networks. Then, we investigate to key techniques to optimize cache management based on application features, including energy-efficient cooperative caching placement and replacement, location-aware loosely constrained cache replacement and prefetching, and time-space constrained cache consistency algorithms. Finally, we will combine the above studies to form a comprehensive cooperative caching system and evaluate its performance.
    
    

  • 2010-2012, "Data Distribution Strategies in Delay Tolerant Networks", sponsored by the JiangSu Natural Science Foundation (No. BK2009100)

  
  

• Recent Research Projects (as Co-Investigator) ( List )

  • 2009-2013, "Research on Networked Complex Software: Quality and Confidence Assurance, Development Method, and Runtime Mechanism",sponsored by the National Basic Research Program of China (973, No. 2009CB320705)

  • 2009-2011, "Energy Efficient Schemes for Supporting Flexible Cache Consistency in Mobile Ad Hoc Networks", sponsored by Hong Kong CityU Strategic Research Grant (#7002494)

Publications

Conference Paper

• Yanchao Zhao, Wenzhong Li, Jue Hong, Zhuo Li, Sanglu Lu, Daoxu Chen, On Handoff Minimization in Wireless Networks: From a Navigation Perspective In Proceedings of IEEE Wireless Communications and Networking Conference (WCNC2010), Sydney, Australia, April 18-21, 2010.
  
  
• Tianyin Xu, Weiwei Wang, Baoliu Ye, Wenzhong Li, Sanglu Lu, Yang Gao, Prediction-based Prefetching to Support VCR-like Operations in Gossip-based P2P VoD Systems, In Proceedings of the 15th International Conference on Parallel and Distributed Systems (ICPADS 2009), Shenzhen, China, Dec. 8-11, 2009.
  
  
• Yuefei Hu, Wenzhong Li, Sanglu Lu, and Daoxu Chen, On Media Streaming Application Migration in Pervasive Environment, The First Asia-Pacific Symposium on Internetware (InternetWare 2009 demo), Beijing, China, Oct. 17-18, 2009.
  
  
• Wenzhong Li, Edward Chan, Daoxu Chen, and Sanglu Lu, Maintaining Probabilistic Consistency for Frequently Offline Devices in Mobile Ad Hoc Networks, the 29th International Conference on Distributed Computing Systems (ICDCS 2009), Montreal, Quebec, Canada, June 22-26, 2009. Acceptance Rate: 16% (74 out of 455). (pdf) (bib)
  
  
• Tianyin Xu, Jianzhong Chen, Wenzhong Li, Sanglu Lu, Yang Guo, and Mounir Hamdi, Supporting VCR-like Operations in Derivative Tree-Based P2P Streaming Systems, IEEE International Conference on Communications (ICC2009), Dresden, Germany, June 14-18, 2009. (Best paper award) (pdf) (bib)
  
  
• Jue Hong, Jiannong Cao, Wenzhong Li, Sanglu Lu, and Daoxu Chen, Sleeping Schedule-Aware Minimum Latency Broadcast in Wireless Ad hoc Networks, IEEE International Conference on Communications (ICC2009), Dresden, Germany, June 14-18, 2009.
  
  
• Chunfeng Si, Wenzhong Li, Qi Lv, Tao Yan, Sanglu Lu, and Daoxu Chen, ADOM: An Adaptive Objective Migration Strategy for Grid Platform, In Proceedings of the Seventh International Conference on Grid and Cooperative Computing (GCC2008), Shenzhen, Guangdong, China, 24-26 Oct. 2008.
  
  
• Jue Hong, Wenzhong Li, Sanglu Lu, Jiannong Cao, and Daoxu Chen, Sleeping Schedule Aware Minimum Transmission Broadcast in Wireless Ad Hoc Networks, In Proceedings of the 14th International Conference on Parallel and Distributed Systems (ICPADS2008), Melbourne, Victoria, AUSTRALIA, 2008
  
  
• Yilin Wang, Edward Chan, Wenzhong Li and Sanglu Lu, Location Dependent Cooperative Caching in MANET, In Proceedings of International Conference on Parallel Processing (ICPP2008), Portland, Oregon, USA, 2008: 470-477.
  
  
• Wenzhong Li, Edward Chan, Yilin Wang, Daoxu Chen, and Sanglu Lu, Cache Placement Optimization in Hierarchical Networks: Analysis and Performance Evaluation, In Proceedings of the 7th International Conference on Networking (IFIP Networking2008), Singapore, 2008: 385-396.
  
  
• Yilin Wang, Edward Chan, Wenzhong Li and Sanglu Lu, Caching Invalidation Strategies for Supporting Weak Location Dependent Queries, In Workshop of the 28th International Conference on Distributed Computing Systems (ICDCSW2008), Beijing, China, 2008: 459-464.
  
  
• Wenzhong Li, Yilin Wang, Chunhong Li, Sanglu Lu and Daoxu Chen. A QoS-Aware Service Selection Algorithm for Multimedia Service Overlay Networks. In Proceedings of the 13th International Conference on Parallel and Distributed Systems (ICPADS 2007), TaiWan, China, 2007.
  
  
• Wenzhong Li, Edward Chan, Yilin Wang and Daoxu Chen, Cache Invalidation Strategies for Mobile Ad Hoc Networks, In Proceedings of International Conference on Parallel Processing (ICPP2007), XiAn, China, 2007
  
  
• Yilin Wang, Wenzhong Li, Jianzhong Chen, Sanglu Lu, Fang Wang and Daoxu Chen. RSB-Topo: A Topology Adaptation Algorithm for Unstructured P2P Networks. In Workshop of International Conference on Parallel Processing (ICPPW2007), XiAn, China, 2007.
  
  
• Wenzhong Li, Edward Chan, and Daoxu Chen. Energy-efficient Cache Replacement Policies for Cooperative Caching in Mobile Ad Hoc Network. In Proceedings of IEEE Wireless Communications and Networking Conference (WCNC2007), pp.3347 - 3352. March 2007. Hong Kong, China. (EI: Accession number: 074810946044)
  
  
• Chunhong Li, Guofu Feng, Wenzhong Li, Tiecheng Gu, Sanglu Lu, and Daoxu Chen, A Resource-Adaptive Transcoding Proxy Caching Strategy, In Proceedings of the 8th Asia Pacific Web Conference(APWeb2006), 2006, 556-567 (EI: Accession number: 06279982133; SCI-E IDS Number: BDV60)
  
  
• Wenzhong Li, Kun Wu, Xu Ping, Ye Tao, Sanglu Lu, and Daoxu Chen, Coordinated Placement and Replacement for Grid-based Hierarchical Web Caches, In Proceedings of the 4th International Conference on Grid and Cooperative Computing (GCC2005), Beijing, China, 2005, 430-435 (EI: Accession number: 06229908907; SCI-E: IDS Number: BDQ17)
  
  

  Journal Paper

• Jue HONG, Jiannong CAO, Wenzhong LI, Sanglu LU and Daoxu CHEN, Minimum-Transmission Broadcast in Uncoordinated Duty-Cycled Wireless Ad Hoc Networks, to appear in IEEE Transactions on Vehicular Technology .
  
  
• Edward Chan, Wenzhong Li, and Daoxu Chen. Energy Saving Strategies for Cooperative Cache Replacement in Mobile Ad Hoc Networks. Pervasive and Mobile Computing 5(1):77-92, 2009. (pdf) (bib)
  
  
• LI Wen-Zhong, CHEN Dao-Xu£¬ LU Sang-Lu, A Graph-based Optimal Cache Deployment Algorithm for Distributed Caching Systems (in Chinese), to appear in Journal of Software.
  
  
• CHEN Jian-Zhong, XU Tian-Yin, LI Wen-Zhong, LU Sang-Lu, CHEN Dao-Xu, Edward CHAN, A Derivative Tree-Based P2P Interactive Streaming System (in Chinese), to appear in Journal of Software.
  
  
• Li Wen-Zhong, Guo Sheng, Xu Ping, Lu Sang-Lu, Chen Dao-Xu, An Adaptive Load Balancing Algorithm for Service Composition, (in Chinese) Journal of Software, 2006,17(5):1068-1077
  
  
• LI Chun-hong, FENG Guo-fu, LI Wen-zhong, GU Tie-cheng, LU Sang-lu, CHEN Dao-xu, A Resource-Adaptive Transcoding Proxy Caching Mechanism (in Chinese), Acta Electronica Sinica, 2006£¬34£¨8£©£¬1526-1529
  
  
• Li Wen-Zhong, Zhou Jun, Gu Tie-Cheng, Lu Sang-Lu, Chen Dao-Xu, Information Service System for Globus-Based Streaming media Grids, (in Chinese) Journal of Mini-Micro Systems, 2005,26(12): 2074-2077
  
  
• Li Wen-Zhong, Gu Tie-Cheng, Zhou Jun, Lu Sang-Lu, Chen Dao-Xu, Research on Adaptive Web Caching, (in Chinese) Journal of Computer Science, 2005, 32(4):11-15
  
  
• Li Wen-Zhong, Gu Tie-Cheng, Li Chun-Hong, Lu Sang-Lu and Chen Dao-Xu, GCaching: A Grid-Based Cooperative Caching System, (in Chinese) Journal of Computer Research and Development, 2004,41(12), 2211-2217
  
  

Links

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Others

• Hobbies

  • Chinese Classical Poem, Chinese Painting and Calligraphy, Classical Music, Badminton, Go, ...

• Friends

  • Wanlei Zhao, Wei Sun, Yu Huang, Yang Zhang, Qiuyan Xia, Xiang Lian, Wu-Jun LI, Jue Hong, Hao Han, ...