PhD in Electrical Engineering. Extensive SW/FW development experience on wireless network especially on low power mesh network, work includes system architecture design and performance analysis, SW/FW development for low level stack, high level application layers and backend service support. Experience on testing, field deployment and operation, hardware design, regulatory and manufacture issues.

Sr Staff Scientist @ • Worked in Wireless Connectivity Group. Focused on the design and development of coexistence features among WiFi, BT(BLE) and LTE. Successfully delivered Wi-Fi Combo(Integrating WLAN, BT,BLE in one chip) products to power world best handsets like iPhone/iPad/Galaxy. etc. • Designed and developed the timing share and hybrid protocol that can increase Wi-Fi Throughput more than 50% without disturbing 4G LTE and BLE usage. Developed a unified framework to support the coexistence interface among multiple different chipsets so the development and support overhead for customers are dramatically reduced. • Designed and developed power control scheme in coexistence scenarios which can maximize the Wi-Fi performance while strictly aligned with FCC and customer power requirement. • Worked closely with customer such as Apple and Samsung to design and implement specific coexistence features based on customer requirement. From July 2013 to Present (2 years 4 months) sunnyvaleSoftware Engineer @ • Developed and successfully launched QuietCare, a FDA listed passive health monitoring product. • Led the large scale wireless sensor network system architecture design and development based on Zigbee. Architected the wireless network protocol structure and developed the SW/Firmware stack. Led the wireless network system problem diagnose and performance improvement. Participated backend server development, system verification and validation, hardware design, field deployment and operation. Authored relevant design/regulatory documentation. • Led the next generation of QuietCare wireless sensor network system design and development: including technique roadmap architecture, new Firmware development with enhanced features and protocol stack, and integrating with 3rd party solution. Participated the next generation backend design and development which is event based asynchronized scheme instead of multithreading in python. From February 2011 to June 2013 (2 years 5 months) Roseville, CAResearch Assistant/PhD Student @ • IEEE 802.15.5: Mesh Network layer design over IEEE 802.15.4 --Participated in IEEE 802.15.5 mesh network layer design over IEEE 802.15.4 MAC/PHY. Focused on network formation, distributed link state routing, mobility support, energy saving and routing path maintenance schemes. Have multiple papers, standard proposals and patent published. --Implemented IEEE 802.15.5(low rate part) protocol stack (mandatory parts) on Test-bed using C. Responsible for protocol stack development. Participated in the embedded RTOS design and development. Coordinated Java interface/web design and MySQL database development. --Participated editorial works of IEEE 802.15.5 standard, including standard writing and comments resolution. • IEEE 802.15.4e: MAC enhancement of IEEE 802.15.4 --Designed Embedded CAP, which enhances the GTS performance over wireless lossy links. --Participated EGTS enhancement design (DSME scheme), which provides time-guaranteed GTS service of 802.15.4 over multi-hop cases. • TCP over wireless mesh networks --TCP performance modeling and enhanced TCP design for wireless mesh networks using correlation information. • Quality of information of sensor networks. ITACS project 7 --Designed a global level fault detection for Sensor Networks using correlation and PCA(Kernel PCA) based method. From August 2006 to September 2011 (5 years 2 months) Software Engineer @ Designed and developed the Human detection software in Samsung Electronics Corp. From October 2004 to December 2005 (1 year 3 months) Researcher @ Designed and developed the real-time Synthetic Aperture Radar (SAR) signal Processor using FPGA From September 2003 to October 2004 (1 year 2 months)

PHD, Electrical Engineering @ City University of New York From 2006 to 2011 MS, EE @ University of Electronic Science and Technology of China From 2003 to 2006 bachelor, Electrical and communication engineering @ Xi'an Jiaotong University From 1999 to 2003 Rui Zhang is skilled in: C/C++, Perl, TCL, Matlab, Unix/Linux, Embedded RTOS, IEEE 802.15.4, IEEE 802.11, wireless communication..., Zigbee, 6LowPAN, NS2, OPNET, VHDL, FPGA, Microcontroller, Python, FreeRTOS, uCOS, ZigBee, 802.15.4, Embedded Systems, RTOS, Wireless, Algorithms, Microcontrollers, Wireless Sensor Networks, C++, System Architecture, Software Development, Firmware, Distributed Systems, WiFi, C