Tae Young Chang

Current

Software Engineer at Xiocom Wireless

Past

Research Assistant at Georgia Institute of Technology
Research Engineer at Samsung Electronics
Research Assistant at Korea University

Intern at Hynix Semiconductor

see less...

1 more...

Education

Georgia Institute of Technology
Korea University
Korea University

see less...

Connections

108 connections

Industry

Computer Networking

Websites

My Website

Tae Young Chang’s Summary

Software development and research engineer in the area of wireless communications and networking. Particularly, interested in designing embedded operating system, integrating 802.11n/16/IAL modules in embedded systems, network management, spectrum/traffic analysis, QoS control, and application acceleration in wireless data networks.

Tae Young Chang’s Specialties:

Languages: C/C++/WinAPI/MFC, Shell/Perl/Python/PHP/Javascript/Tcl
Tools: Matlab/Simulink, ns2 Network Simulator, ARM/JTAG, Latex
Operating Systems: NRT/RT/Embedded Linux, OpenWrt, Windows
Device Drivers: Madwifi/ath9k, WaveSat dm256 (802.16d), Intel IXP400 AL/NPE/Ethernet
Network Protocols: TCP/IP, FTP/SNMP/SMTP/HTTP/etc, 802.1q Vlan, OSPF/RIP/etc
Wireless PHY: OFDM, MIMO, TPC
Wireless Specs: 802.11, 802.16/WiMax, IS-95/CDMA2000/W-CDMA/GSM/LTE, Bluetooth

Tae Young Chang’s Experience

Software Engineer

Xiocom Wireless

(Privately Held; Telecommunications industry)

March 2008 — Present (1 year 9 months)

Designing and implementing XWR-OS for Intel IXP processors, 802.11n/16d/IAL modules, network management systems, and real-time site-surveying tool for wireless hybrid (Wi-Fi/Wi-Mesh) networks in the Embedded and Advanced Systems team at Xiocom Wireless.
Research Assistant

Georgia Institute of Technology

(Educational Institution; 1001-5000 employees; Higher Education industry)

January 2002 — December 2007 (6 years )

Designed a file-synchronization middleware for wireless data networks. Achieved network traffic reductions and speed-ups by using message optimization. Implemented in WinAPI and evaluated in a Sprint CDMA2000-1X (144 Kbps) network.

Designed a new middleware for application-unaware Web access in mobile environments. Reduced Web response time by performing W-AIMD in TCP and mode transfer with Thin-Client session. Evaluated performance in ns2 network simulator, Windows with VPC, and Linux with VNC.

Designed Web acceleration algorithms for low-bandwidth wireless links. Minimized Web transfer size and response time by performing prioritized object transmission, dynamic object scheduling, and connection management algorithms. Evaluated performance in ns2 simulator and implemented as a plug-in program for IE in WinAPI.
Research Engineer

Samsung Electronics

(Public Company; 10,001 or more employees; SEC; Consumer Electronics industry)

February 2001 — April 2001 (3 months)

Performed research study on the initial draft of PHY- and MAC-layer specs of W-CDMA/CDMA2000.
Research Assistant

Korea University

(Educational Institution; 1001-5000 employees; Higher Education industry)

December 1998 — February 2001 (2 years 3 months)

Designed and evaluated a transmit power control (TPC) system for CDMA2000 data networks, which performs channel-capacity optimization by using LMS/RLS adaptive algorithms.

Designed and evaluated a constant amplitude multiplexing technique for multi-code W-CDMA, which minimizes nonlinear distortion and power loss by reducing PAPR of output multiplexed by WH-codes.

Designed and evaluated an iterative restoration scheme for nonlinear distortion in OFDM, which iteratively compensates low-BER components clipped by a nonlinear HPA.
Intern

Hynix Semiconductor

(Public Company; 10,001 or more employees; Semiconductors industry)

December 1997 — February 1998 (3 months)

Participated in QA engineering for semiconductor memory devices.

Tae Young Chang’s Education

Georgia Institute of Technology

PhD , Electrical and Computer Engineering , 2007

Thesis Title: User-Activity-Aware Strategies for Mobile Information Access

Activities and Societies:

Copy Editor in ACM Mobile Computing and Communication Review (MC2R), 2005-2006.
Reviewer in IEEE Transactions on Mobile Computing, Springer Wireless Networks, Elsevier Computer Networks, ACM MobiCom/MobiHoc, IEEE Infocom, etc.
Korea University

Masters , Telecommunication System Technology , 2001

Thesis Title: Performance Evaluation of Adaptive Power Control Algorithms for CDMA2000

Activities and Societies:

Recipient of Brain Korea 21 Scholarship from Ministry of Information and Communication
Korea University

Bachelor , Electronics Engineering , 1999