================================================== XI CHEN ================================================== Room 3209, Coover Hall Dept. of Electrical & Computer Engineering Iowa State University Ames, IA 50010 Citizenship: P.R. China with F-1 visa Phone: (626)689-8423 leon6827@iastate.edu http://home.eng.iastate.edu/~leon6827 OBJECTIVE ================================================== Internship/Co-op in wireless networking, embedded system, software developing or related areas. EDUCATION ================================================== Ph.D. Computer Engineering, Iowa State University, July 2010 (Expected) B.S. Electrical Engineering, University of Science and Technology of China (USTC), July 2006 RESEARCH EXPERIENCE ================================================== Research Assistant, Since Fall 2006 Dr. Daji Qiao, ECE Dept. of Iowa State Univ. * Rate adaptation mechanism for wireless LANs. - Proposed new mechanism to improve system throughput, and solve hidden node problem. - Implemented it in MadWifi, which is one of the most advanced WLAN driver available for Linux. - Simulated in ns-2, and compared with most of the existing schemes. * Resource management in multi-radio multi-channel Mesh networks. - Formulated it as a joint routing and channel assignment problem with practical considerations. - Solved the problem using optimization tool CPLEX. - Qualnet simulation results proved the effectiveness. * Location privacy in ad-hoc localization system. - Devised a novel scheme to protect location privacy of beacon nodes. - Analyzed the security level of our scheme mathematically. - Simulated our scheme with nesC program in TinyOS. Research Assistant, Fall 2004--Fall 2006 Dr. Jinkang Zhu, PCN&SS Lab, EEIS Dept. of USTC * Focus on signal processing. A Kalman filter-based approach is put forward for target detection and target-background separation. It is proposed to estimate the background signal and to separate it from the target return. TEACHING EXPERIENCE ================================================== Teaching Assistant, EE 201 Electric Circuits, Iowa State University, Spring 2008 Teaching Assistant, CprE 543 Wireless Network Architecture, Iowa State University, Fall 2007 INTERNSHIP ================================================== Research Staff June--Sept. 2005 Dr. Guangyou Fang Beijing, Chinese Academy of Science * Focus on image processing. Using multi-resolution analysis and edge-following algorithms to propose new detection algorithm, which is used to detect horizons on Sub-bottom Images. PROJECTS & DEMOS ================================================== Java RMI and CORBA projects (C++ and JAVA), Spring 2008 These two projects are done in the course of Distributed Systems and Middleware. The Java RMI Chatroom supports multiple chatrooms each with multiple clients. Client remotely call the procedure resided in server side to obtain a list of existing chatrooms. The CORBA auction system is similar to ebay, and provides bidding and selling functions as well as banking function support. goGarcia (Crossbow-MICA motes, Stargate linux box, Laptop), Fall 2007 goGarcia is a target tracking demo system based on WiFi and xbow-MICA sensor platforms. The sensor network will sense and report the location of a triggered event. A centralized server will calculate the route and send out commands to the Intel-Stargate Linux box on Garcia robot, which calls TEA module to control the movement. sBlink (Crossbow-MICA motes, embedded TinyOS), Spring 2007 This is a distributed, self-organizing and self-healing application. In sBlink, every MICA node blinks one by one with a duration of one second between blinkings based on their orders of joining the network. sBlink needs to handle the events of multiple nodes!/ joining and leaving, as well as message collision problems. 76ers Robot (Intel 8051 Chipset, Motor Control), Spring 2005 76ers is the name of the robot we designed in the Robot Competition held by USTC in 2005. The goal in the competition is to pick up as many balls as possible and carry them to the center platform, as well as to handle collisions with other robots. We designed and made the robot (mechanics, electronics and software) all by our own. bookCD (Oracle and PHP programming), Spring 2004 The bookCD is a disk service system for all USTC students, faculties and staffs. We recorded every CD that our library bought into Oracle database, and provided web pages in PHP for searching and downloading services. COMPUTER SKILLS ================================================== Tools: ns-2, Qualnet, Matlab, Pspice, Quartus II Platforms: Windows XP/2000/98/95, Linux Database: MySQL, Oracle 8i Languages: C/C++, Java, Perl, Visual Basic, Delphi, Verilog, Tcl, nesC, Keil C Web Related: Apache, IIS, ASP, PHP, JavaScript Deep understanding of wireless networking protocols (e.g., 802.11, 802.16 WiMax, ZigBee) SELECTED COURSEWORK ================================================== Advanced Communications Computer Systems Performance Advanced Protocols and Network Security Probabilistic Methods in Computer Engineering Wireless Network Architecture Pervasive Computing Random Processes for Communications Distributed System and Middleware Wireless Sensor Networks Wireless Network Security PUBLICATIONS ================================================== Xi Chen and Daji Qiao "Probabilistic-based Rate Adaptation for IEEE 802.11 WLANs" in Proc. of IEEE Global Communications (GlobeCom), Washington D.C., Nov. 2007. Wei Zhou, Xi Chen, and Daji Qiao "Practical Routing and Channel Assignment Scheme for Mesh Networks with Directional Antennas" in Proc. of IEEE International Conference on Communications (ICC), Beijing, China, May 2008. Xi Chen, Prateek Gangwal and Daji Qiao "Practical Rate Adaptation in Mobile Environments" to appear in IEEE International Conference on Pervasive Computing and Communications (PerCom) Acceptance ratio = 13%, Galveston, TX, March 2009. Xi Chen, Ka Yang and Daji Qiao "Preserving Beacon Node Location Privacy in Ad-hoc Networks" to be submitted. SERVICES ================================================== Treasurer, Iowa State University Chinese Soccer Club, since 2006 IEEE Student Member, Reviewer of ICC, ICCCN, Transaction on Wireless Communication (TWC) Technical Staff, University Library, University of Sci. & Tech. of China, 2004--2006 Vice president of Sports Club, School of Information Sci. & Tech., USTC, 2004--2006 HONORS & AWARDS ================================================== Professional Advancement Grant, Iowa State University, 2007 Undergraduate Research Award, University of Sci. & Tech. of China, 2005 Winner of the Paper Contest on Electromagnetic, University of Sci. & Tech. of China, 2003 Outstanding Student Scholarship, University of Sci. & Tech. of China, 2002, 2003, 2004, 2005 REFERENCES ================================================== Available upon request.