Overview

Since 2002, I have worked on the field of wireless networking research in order to improve the performance of cellular, Wi-Fi, ad-hoc and mesh networks.  My current research interests are:
MAC & Routing Protocols in Ad-hoc Network.
Cross-layer designs in Wireless LAN and Multi-hop wireless Network.

Research Projects

Integrated routing & MAC scheduling for wireless mesh networks

Characterize the capacity bounds of multi-hop multi-rate wireless networks

Experiment Investigation of the Impact of PHY Layer Rate Control and Frequency Selection in 802.11-based Ad-Hoc Networks

Cross-layer Routing Metric Design for Wireless Networks with Multi-Rate Radios

WCoF: Cooperative Forwarding in Multi-rate Wireless Networks

Distributed Link Scheduling Multiple Access Protocol for QoS in Ad-hoc Networks

Empirical study on the utilization of multi-user diversity to improve IEEE 802.11 MAC-based wireless LAN performance

Recent Publication

[WiMesh06] (PDF, BibTex) Z. Wu, S. Ganu and D. Raychaudhuri, "IRMA: Integrated routing and MAC scheduling in multihop wireless mesh networks", in Proceedings of the Second IEEE Workshop on Wireless Mesh Networks, WiMesh 2006, Reston VA, Sept 2006.

[Sigcomm-Ewind05] (PDF, BibTex) Z. Wu, S. Ganu, I. Seskar and D. Raychaudhuri, "Experimental investigation of PHY layer rate control and frequency selection in 802.11-based ad-hoc networks", in Proceedings of ACM SIGCOMM Workshops, August, 2005. 

[WoWMoM05] (PDF, BibTex ) S. Zhao, Z. Wu, A. Acharya and D. Raychaudhuri, "PARMA: A PHY/MAC Aware Routing Metric for Ad-Hoc Wireless Networks with Multi-Rate Radios", in Proceedings of IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM 2005), June 2005. 

[Globecom04] (PDF, BibTex) Z. Wu, D. Raychaudhuri, "D-LSMA: Distributed Link Scheduling Multiple Access Protocol for QoS in Ad-hoc Networks", in Proceedings of IEEE GLOBECOM '04, November 2004. 

Talks

IRMA: Integrated routing and MAC scheduling in multihop wireless mesh networks. (slides) at WiMesh'06 Workshop, Reston VA, September, 2006 and WINLAB Industrial Advisory Board Meeting in Fall, 2006

Experimental Investigation of PHY Layer Rate Control and Frequency Selection in 802.11-based Ad-Hoc Networks. (slides)  Sigcomm Workshop, Philadelphia, August 2005

D-LSMA: Distributed Link Scheduling Multiple Access Protocol for QoS in Ad-hoc Networks. (slides)  GlobeCom'04 Conference, December, 2004 and WINLAB Industrial Advisory Board Meeting, Fall 2003

Voluntary Forwarding in Wireless ad-hoc networks. (slides) WINLAB Industrial Advisory Board Meeting, Fall 2004

Ns-2 Wireless Simulation Tutorial (slides) WINLAB Student Seminar, June, 2003

Self-Organizing TDMA MAC for Mobile Ad-hoc Network. (slides) WINLAB Student Seminar, March, 2003

Conference Information

CFP list (http://lists.cs.columbia.edu/pipermail/tccc/)
Wireless and mobility conferences CFP list http://dutetvg.et.tudelft.nl/~alex/CFP/
Tim Moore's networking conference dates
EE CS Conference Statistics

Research Archive (1997-2002)

Master Thesis. "Image Segmentation and Shape Description in Machine Vision", Wuhan University, June 1997
Other Old publications.