Dr. David S. L. Wei

Professor, Department of Computer and Information Sciences

Ph.D., University of Pennsylvania (1991)

Email:wei@dsm.fordham.edu

Tel:(718)817-4497

Office:JMH 328B

Background Data
Research Interests
Research Description
Professional Activities
Selected Publications

Background Data

Professor Wei received his Ph.D. in computer science from the University of Pennsylvania in 1991. Dr. Wei is a senior member of the IEEE, the Computer Society, and the Communications Society.

Professor Wei has been working in the field of computer science for more than 25 years. Currently, his research mainly focuses on parallel, distributed, mobile and power-aware computing, sensor networks, cognitive radio networks, and cloud computing.

Research Interests

Mobile and Power Aware Computing
Wireless Networks (Sensor Networks and Cognitive Radio Networks)
Cloud Computing
Optical Networking
Parallel and Distributed Processing

Research Description

I have worked on some fundamental problems in the areas of parallel and distributed processing, wireless networks, optical networks, and peer-to-peer (P2P) communications. My contributions have helped advance the frontier of knowledge in those areas. In particular, I have worked on the problems of network routing, parallel and distributed sorting, parallel parsing, task scheduling in parallel and distributed systems, medium access control of Wi-Fi and Bluetooth, data aggregation in wireless sensor networks, dynamic spectrum access control in cognitive radio networks, wavelength-division multiplexing (WDM) MAC design, and P2P protocol design. The fusion of computer and communications is redefining the way we do computing. There has been significant progress in interconnection mechanism and data transmission technology. Together with the new styles of software design, including virtualization of operating systems, they have engendered a new Internet-based computing paradigm, called cloud computing, that offers cost-effective services. To make cloud computing secure, efficient, and easily programmable, my current research also focuses on developing efficient algorithms, system software and tools for cloud computing.

Professional Activities

Lead Guest Editor, IEEE Journal on Selected Areas in Communications (J-SAC). Special Issue on Networking Challenges in Cloud Computing Systems and Applications, to appear in December 2013.
Chair, Business and Technical Forum on Cloud Security, IEEE GLOBAL Communications Conference (Globecom 2011), Houston, Texas, USA.
Chair, Business and Technical Forum on Intelligent Transportation System, IEEE GLOBAL Communications Conference (Globecom 2011), Houston, Texas, USA.
General Chair, Workshop on Advanced Communications Technologies and Applications for Intelligent Transportation Systems , IEEE ICC 2011, Kyoto, Japan.
Chair, Business and Tech Forum on Intelligent Transportation Systems, IEEE Globecom 2010, Miami, Florida, USA.
Guest Editor, IEEE Journal on Selected Areas in Communications (J-SAC). Special Issue on Peer-to-Peer Communications and Applications, January 2007.
Lead Guest Editor, IEEE Journal on Selected Areas in Communications (J-SAC). Special Issue on Mobile Computing and Networking, June 2005.
Publicity Co-Chair, The 3rd IEEE International Symposium on Signal Processing and Information Technology, Darmstadt, Germany, December 2003.

Selected Publications

"Dynamic Spectrum Access MAC for Multi-Channel Ad-hoc Networks," IFIP Wireless Days , Niagra Falls, Canada, October 10-12, 2011 (with A. Hsu, C.-C.J. Kuo).
"Analysis of the Bluetooth Device Discovery Protocol", ACM Baltzer Wireless Networks (WINET), Vol. 16, No. 2, February, 2010, pp. 421-436 (with G. Chakraborty, K. Naik, D. Chakraborty, and N. Shiratori).
"A Random Graph-Based Model to Analyze Packet Interference Between Frequency Hopping Systems with an Application to Bluetooth," Computer Communications, vol. 31, 2008, pp. 3286-3291 (with K. Naik, Y.T. Su, and N. Shiratori).
"On the Fundamental Performance Limits of Peer-to-Peer Data Replication in Wireless Ad~hoc Networks," IEEE Journal on Selected Areas in Communications, Special Issue on Peer-to-Peer Communications and Applications, vol. 25, no. 1, January 2007, pp. 211-221 (with S.C. Wang et al.).
"A Reservation Based Multicast Protocol for WDM Optical Star Networks," IEEE Journal on Selected Areas in Communications, Optical Communications and Networking Series, vol. 22, no. 9, November 2004, pp. 1670-1680 (with K. Naik et al.).
"Call-on-Hold for Improving the Performance of Dynamic Channel Assignment Strategies in Cellular Networks," IEEE Trans. on Vehicular Technology, vol. 53, no. 6, November 2004, pp. 1780-1793 (with K. Naik).
"Efficient Algorithms for Selection and Sorting of Large Distributed Files on de Bruijn and Hypercube Structures," International Journal of Foundation of Computer Science, vol. 14, no. 6, pp. 1129-1146, December 2003 (with S. Rajasekaran et al.).
"A Topology Control Algorithm for Constructing Power Efficient Wireless Ad Hoc Networks," GlobeCom 2003, San Francisco, CA (with S.C. Wang et al.).
"NICE - A Decentralized Medium Access Control Using Neighborhood Information Classification and Estimation for Multimedia Applications in Ad Hoc 802.11 Wireless LANs," ICC 2003, Anchorage, Alaska, May 2003 (with A. Chen et al.).
"Efficient Selection and Sorting Schemes Using Coteries for Processing Large Distributed Files," Journal of Parallel and Distributed Computing, vol. 62, pp. 1295-1313, 2002 (with S. Rajasekaran et al.).
"Software Implementation Strategies for Power-Conscious Systems,'' ACM Mobile Networks and Applications, Special Issue on Energy Conserving Protocols in Wireless Networks, vol. 6, no. 3, pp. 291-305, June 2001 (with K. Naik).
"Isomorphism of Degree Four Cayley Graph and Wrapped Butterfly and Their Optimal Permutation Routing Algorithm," IEEE Transactions on Parallel and Distributed Systems, vol. 10, No. 12, pp. 1290-1298, December 1999 (with F. Muga II et al.).
"An Efficient Multicast Protocol Using de Bruijn Structures for Mobile Computing," ACM Computer Communication Review, vol. 27, no. 3, July 1997, pp. 14-35 (with K. Naik).
"Task Clustering and Scheduling for Distributed Memory Parallel Architectures," IEEE Transactions on Parallel and Distributed Systems, vol. 7, no. 1, Jan. 1996, pp. 46-55 (with M. Palis et al.).
"Packet Routing and PRAM Emulation on Star Graphs and Leveled Networks," Journal of Parallel and Distributed Computing, vol. 20, no. 2, Feb. 1994, pp. 145-157 (with M. Palis and S. Rajasekaran).

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