DAJI QIAO Assistant Professor Department of Electrical and Computer Engineering Iowa State University 3214 Coover Hall Ames, Iowa 50011 Phone: (515) 294 2390 Fax: (515) 294 3637 E-mail: daji at iastate dot edu Ph.D., The University of Michigan M.S., The Ohio State University B.E., Tsinghua University

Research Interests

IEEE 802.11 Wireless LANs, Wireless Sensor Networks, Wireless Mesh Networks, Cross-Layer Design and Optimization.

Teaching

• Cpr E 546: Wireless Sensor Networks (Spring 2006, Spring 2007, Spring 2008, Spring 2009)
• Cpr E 489: Computer Networking and Data Communications (Fall 2004, Fall 2005, Fall 2006, Fall 2007, Fall 2008)
• Cpr E 594: Selected Topics in Computer Engineering: Mobile and Pervasive Computing (Fall 2007, Fall 2008)
• Cpr E 590: Special Topics on Wireless and Sensor Networks (Spring 2005)
• Cpr E 592: Wireless and Sensor Networks Seminar (Fall 2004)

Professional Services

• Guest Editor for IEEE Wireless Communications Magazine Special Issue on Dependability Issues with Ubiquitous Wireless Access.
• Publicity Chair: SECON 2008, IEEE WoWMoM 2007, WMASH 2005.
• Travel Awards Chair: SECON 2009.
• Track Chair: ICCCN 2008.
• Session Chair: SECON 2007, WMASH 2006, WMASH 2004.
• Technical Program Committee (selected)
  • 2009: INFOCOM, WASA, ICUFN, MobiLight
  • 2008: ICCCN, INFOCOM, SECON, WiSP.
  • 2007: ICCCN, WoWMoM, COMSWARE, ISDPE, ICESS, WASA, WSNS.
  • 2006: ICCCN, ICDCS, WirelessCom, WILLOPAN, WMASH, WSNS.
  • 2005: ICCCN, WirelessCom, Globecom, WCNC, WMASH.
  • 2004: WMASH, BroadWISE.

Selected Publications

• Jeonggyun Yu, Sunghyun Choi, and Daji Qiao
  Analytical Study of TCP Performance over IEEE 802.11e WLANs
  To appear in ACM Mobile Networks and Applications (MONET), 2008
• Guanqun Yang and Daji Qiao
  Critical Conditions for Connected-k-Coverage in Sensor Networks
  In IEEE Communications Letters, vol. 12, no. 9, September 2008
• Daji Qiao, Kang G. Shin, and Zakhia Abichar
  Energy Conservation in 802.11 WLANs via Transmission Strategy-Aware Airtime Allocation
  In Elsevier Computer Networks (ComNet), vol. 52, no. 12, August 2008
• Guanqun Yang, Vinod Shukla, and Daji Qiao
  Analytical Study of Collaborative Information Coverage for Object Detection in Sensor Networks
  In Proc. IEEE SECON'08, San Francisco, CA, June 16~20, 2008
• Wei Zhou, Xi Chen, and Daji Qiao
  Practical Routing and Channel Assignment Scheme for Mesh Networks with Directional Antennas
  In Proc. IEEE ICC'08, Beijing, China, May 19~23, 2008
• Guanqun Yang, Vinod Shukla, and Daji Qiao
  A Novel On-Demand Framework for Collaborative Objection Detection in Sensor Networks
  In Proc. IEEE INFOCOM'08 Mini-conference, Phoenix, AZ, April 14, 2008
• Guanqun Yang, Bin Tong, Daji Qiao, and Wensheng Zhang
  Sensor-Aided Overlay Deployment and Relocation for Vast-Scale Sensor Networks
  In Proc. IEEE INFOCOM'08 Mini-conference, Phoenix, AZ, April 14, 2008
• Xi Chen, Daji Qiao, Jeonggyun Yu, and Sunghyun Choi
  Probabilistic-Based Rate Adaptation for IEEE 802.11 WLANs
  In Proc. IEEE Globecom'07, Washington, DC, November 26~30, 2007
• Daji Qiao, Sunghyun Choi, and Kang G. Shin
  Interference Analysis and Transmit Power Control in IEEE 802.11a/h Wireless LANs
  In IEEE/ACM Transactions on Networking (ToN), vol. 15, no. 5, October 2007
• Jeonggyun Yu, Sunghyun Choi, and Daji Qiao
  TCP Dynamics over IEEE 802.11e WLANs: Modeling and Throughput Enhancement
  In Proc. IEEE BROADNETS'07, Raleigh, NC, September 10~14, 2007
• Jianming Zhou, Wensheng Zhang, and Daji Qiao
  Protecting Storage Location Privacy in Sensor Networks
  In Proc. QShine'07, Vancouver, British Columbia, Canada, August 14~17, 2007
• Daji Qiao and Kang G. Shin
  Energy-Efficient Airtime Allocation in Multi-Rate Multi-Power-Level Wireless LANs
  In Proc. QShine'07, Vancouver, British Columbia, Canada, August 14~17, 2007
• Guanqun Yang, Wei Zhou, and Daji Qiao
  Defending Against Barrier Intrusions with Mobile Sensors
  In Proc. WASA'07, Chicago, IL, August 01~03, 2007
• Vinod Shukla and Daji Qiao
  A Robust Statistical Scheme to Monitor Transient Phenomenon in Sensor Networks
  In Proc. IEEE ICC'07, Glasgow, Scotland, UK, June 24~28, 2007
• Wei Zhou and Daji Qiao
  Fulfillment-based Fairness: A New Fairness Notion for Multi-AP Wireless Hotspots
  In Proc. IEEE ICC'07, Glasgow, Scotland, UK, June 24~28, 2007
• Vinod Shukla and Daji Qiao
  Distinguishing Data Transience from False Injection in Sensor Networks
  In Proc. IEEE SECON'07, San Diego, CA, June 18~21, 2007
• Seongkwan Kim, Sunghyun Choi, Daji Qiao, and Jongseok Kim
  Enhanced Rate Adaptation Schemes with Collision Awareness
  In Proc. IFIP Networking'07, Atlanta, GA, May 14~18, 2007 (poster presentation)
• Zakhia Abichar, Morris Chang, and Daji Qiao
  Group-Based Medium Access for Next-Generation Wireless LANs
  In Proc. IEEE WoWMoM'06, Niagara-Falls, Buffalo-NY, June 26~29, 2006
• Wei Mo, Daji Qiao, and Zhengdao Wang
  Lifetime Maximization of Sensor Networks under Connectivity and k-Coverage Constraints
  In Proc. IEEE DCOSS'06, San Francisco, CA, June 18~20, 2006
• Daji Qiao and Sunghyun Choi
  New 802.11h Mechanisms Can Reduce Power Consumption
  In IEEE IT Professional Magazine, vol. 8, no. 2, March-April 2006
• Jongseok Kim, Seongkwan Kim, Sunghyun Choi, and Daji Qiao
  CARA: Collision-Aware Rate Adaptation for IEEE 802.11 WLANs
  In Proc. IEEE INFOCOM'06, Barcelona, Spain, April 23~27, 2006
• Wei Zhou, Dongbo Zhang, and Daji Qiao
  Comparative Study of Routing Metrics for Multi-Radio Multi-Channel Wireless Networks
  In Proc. IEEE WCNC'06, Las Vegas, NV, April 03~06, 2006
• Wei Mo, Daji Qiao, and Zhengdao Wang
  Mostly Sleeping Wireless Sensor Networks: Connectivity, k-Coverage and a-Lifetime
  In Proc. The 43rd Annual Allerton Conference on Communication, Control, and Computing, Monticello, IL, September 28~30, 2005
• Daji Qiao and Sunghyun Choi
  Fast-Responsive Link Adaptation for IEEE 802.11 Wireless LANs
  In Proc. IEEE ICC'05, Seoul, Korea, May 16~25, 2005
• Daji Qiao and Kang G. Shin
  Smart Power-Saving Mode for IEEE 802.11 Wireless LANs
  In Proc. IEEE INFOCOM'05, Miami, FL, March 13~17, 2005
• Daji Qiao, Sunghyun Choi, Amit Jain, and Kang G. Shin
  MiSer: An Optimal Low-Energy Transmission Strategy for IEEE 802.11 a/h
  In Proc. ACM MobiCom'03, San Diego, CA, September 14~19, 2003
• Amit Jain, Daji Qiao, and Kang G. Shin
  RT-WLAN: A Soft Real-Time Extension to the ORiNOCO Linux Device Driver
  In Proc. IEEE PIMRC'03, Beijing, China, September 07~10, 2003
• Albert Banchs, Xavier Perez-Costa, and Daji Qiao
  Providing Throughput Guarantees in IEEE 802.11e Wireless LANs
  In Proc. the 18th International Teletraffic Congress (ITC-18), Berlin, Germany, September 01~05, 2003
• Daji Qiao, Sunghyun Choi, Amjad Soomro, and Kang G. Shin
  Energy-Efficient PCF Operation of IEEE 802.11a WLANs via Transmit Power Control
  In Elsevier Computer Networks (ComNet), vol. 42, no. 1, May 2003
• Daji Qiao, Sunghyun Choi, Amit Jain, and Kang G. Shin
  Adaptive Transmit Power Control in IEEE 802.11a Wireless LANs
  In Proc. IEEE VTC'03-Spring, Jeju, Korea, April 22~25, 2003
• Daji Qiao and Kang G. Shin
  UMAV: A Simple Enhancement to the IEEE 802.11 DCF
  In Proc. The 36th Hawaii International Conference on System Sciences (HICSS-36), Hawaii (The Big Island), Hawaii, January 06~09, 2003
• Daji Qiao, Sunghyun Choi, and Kang G. Shin
  Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs
  In IEEE Transactions on Mobile Computing (TMC), vol. 1, no. 4, October-December 2002
• Daji Qiao, Sunghyun Choi, Amjad Soomro, and Kang G. Shin
  Energy-Efficient PCF Operation of IEEE 802.11a Wireless LAN
  In Proc. IEEE INFOCOM'02, New York City, New York, June 23~27, 2002
• Daji Qiao and Kang G. Shin
  Achieving Efficient Channel Utilization and Weighted Fairness for Data Communications in IEEE 802.11 WLAN under the DCF
  In Proc. The Tenth International Workshop on Quality of Service (IWQoS'02), Miami Beach, Florida, May 15~17, 2002
• Songkuk Kim, Daji Qiao, Sharath Kodase, and Kang G. Shin
  Design and Evaluation of Routing Schemes for Dependable Real-Time Connections
  In Proc. IEEE International Conference on Dependable Systems and Networks (ICDSN'01), Goteborg, Sweden, July 01~04, 2001
• Daji Qiao and Sunghyun Choi
  Goodput Enhancement of IEEE 802.11a Wireless LAN via Link Adaptation
  In Proc. IEEE ICC'01, Helsinki, Finland, June 11~14, 2001
• Daji Qiao and Kang G. Shin
  A Two-Step Adaptive Error Recovery Scheme for Video Transmission over Wireless Networks
  In Proc. IEEE INFOCOM'00, Tel-Aviv, Israel, March 26~30, 2000

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Last modified: 07/2008