Insoo Hwang



Ph.D. Student

 

The Wireless Systems Innovations Lab (Supervisor: Dr. Robert W. Heath Jr.)
The Wireless Networking and Communications Group (WNCG)
Department of Electrical and Computer Engineering (ECE)
The University of Texas at Austin (UT Austin)

1 University Station, Mail code: C0806, Austin, Texas 78712
Email: ihwang@ece.utexas.edu
Phone: (512) 965-1975
Fax: (512) 471-6512

 

Education

  • The University of Texas at Austin (UT Austin), USA
       Ph. D. Student, Electrical and Computer Engineering (July 2007~)
  • University of Southern California (USC), USA
       M.Sc., Electrical Engineering (2005)
  • Pohang University of Science and Technology (POSTECH), Korea
       B.Sc., Electronics and Electrical Engineering (2003)

 

 

Research Interest

  • Multiple Input Multiple Output (MIMO) Transceiver Design
  • Cooperative MIMO in Multicell Scenario
  • MIMO Information Theory – interference alignment and mitigation
  • Cross-Layer Optimization Issues (e.g., Joint Scheduling & Precoding, H-ARQ)
  • Cognitive Transmission Based On Game Theoretic Approaches
  • 4G Physical Layer Design

 

 

Relevant Industry Experience

  • System Engineer, 4G Wireless Technology Lab, Telecommunications R & D Center, Samsung Electronics Co. Ltd (Mar 2006 - July 2007)
    • 4G Physical Layer Research Project
    • MIMO Transceiver Design for Samsung 4G Candidate System
  • Researcher, 4G STU, Communications Lab, Samsung Advanced Institute of Technology (SAIT) (June 2005 – Mar 2006)
    • Multiuser MIMO Design Project for 3GPP LTE (PU2RC)
    • MIMO Analysis – Receiver Structure, Dirty-Paper Coding (DPC), Relay Channel
  • Summer Intern, Telecommunications R & D Center, CTO Labs, LG Electronics Co. Ltd (June – Aug 2004)
    • EDGE/GPRS Modem Design Project
    • Receiver front-end design – Acquisition & Synchronization
  • Summer Student, Samsung Training Center (July – Aug 2001)
    • Digital ASIC Design Course
    • Designed a Game Using HDL Language and Test Bed

 

 

Publication (Paper)

  • Journal Papers
    1. I. Hwang and R. W. Heath Jr., “Achievable Rate Region of MIMO BC with Imperfect CSIT and Cooperation,” in preparation
    2. I. Hwang and R. W. Heath Jr., “Fixed Complexity Nonlinear Multiuser MIMO Precoder Design,” (under 1st revision), will be submitted in Feb 2008.
    3. I. Hwang and R. W. Heath Jr., “Joint Transmit-Receiver Design for Multiuser MIMO Systems,” (under 3rd revision), will be submitted in Feb 2008.
    4. C. You, I. Hwang, Y. Kim and V. Tarokh, “Dual Antenna Selection Algorithms and Feedback Strategies with Reduced Complexity for MIMO Systems,” submitted to IEEE Transactions on Signal Processing, June 2007.
    5. I. Hwang and C. You, “Downlink Transmission Rate Control Strategies for Closed Loop MIMO Systems,” submitted to IEEE Transactions on Wireless Communications, Oct 2007.
    6. C. You, I. Hwang, Y. Kim and V. Tarokh, “A Transmit Beamforming Scheme Based on Dirty-Paper Coding in Closed-Loop Multiuser MIMO Systems,” submitted to IEICE Transactions on Communications, 2007.
    7. I. Hwang, C. You, Y. Kim and V. Tarokh, “A Broadcast Scheme for MIMO Systems with Channel State Information at the Transmitter,” IEICE Transactions on Communications, Vol. E91-B, No.2, pp.613-617, Feb 2008.
  • Conference Papers
    1. I. Hwang, C. You, Y. Kim and V. Tarokh, “Data Rate Control Strategies for MIMO Systems,” accepted in Proc. IEEE Global Telecommunications Conference (GLOBECOM ‘07), Nov 2007.
    2. I. Hwang, C. You, Y. Kim and V. Tarokh, “Antenna Selection Strategies for MIMO Systems,” in Proc. IEEE International Conference on Communications (ICC ’07), Jun 2007
    3. I. Hwang, C. You, Y. Kim and V. Tarokh, “A Broadcast Scheme for MIMO Systems with Channel State Information at the Transmitter,” in Proc. IEEE Conference on Information Sciences and Systems (CISS ’07), Mar 2007.
    4. I. Hwang, S. Kim and Y. Kim, “A MIMO Relay system with H-ARQ,” in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications. (SPAWC '06), Jul 2007.
    5. (Some domestic and/or minor conferences)

 

 

Publication (Patents and Book Chapter, etc)

  • Patents
    1. As of July 2007, I have 41 filed KR patents. 27 of them are filed in US/EP, too.
    2. The complete list of the patents is not available now for the company policy, but I will update it as soon as they are opened to the public.
  • Book Chapter
    1. Ch 16. 3GPP Long Term Evolution (LTE), 'MIMO Book,' (will be published in 2008)
    2. Ch 17. The Ultra Mobile Broadband (UMB) for 3GPP2 Long Term Evolution,  'MIMO Book,' (will be published in 2008)
  • Standard Activity & Technical Reports
    1. Participated in the 3GPP LTE Standardization, Wireless World Research Forum (WWRF)
    2. Over 30 Technical Reports & White Papers in Samsung Electronics & Samsung Advanced Institute of Technology

 

 

Awards

  • Rotary International (RI) Ambassadorial Scholarships, Daegu Representative (3700 District), Korea (2007 – 2008) – [link]
    • Surrendered for relocation problem (TT)
  • Korean Government Fellowship from the Ministry of Information and Communication (MIC), Korea (2003 – 2005) – [link]
    • One of 20 recipients in communication hardware area (overall recipients: 50)
  • Korean Government Fellowship from the Korea Science and Engineering Foundation (KOSEF), Korea (2003 – 2005) – [link]
    • Surrendered for duplicated support with the MIC fellowship (TT)
  • Qualcomm Graduate Essay Contest Winner, San Diego, CA, USA (2003) – [link]
    • Awarded but didn’t participate in the tour due to school schedule (TT)
  • Young Generation Forum 2003 POSTECH Representative, KOFST, Korea (June 2003) – [link]
    • Annual gathering of leading young Korean scientists from all over the world
  • Tuition Remission for Entire Years and Dean’s List for 2001 & 2002, POSTECH, Korea – [link]
  • Student Consultant, Marketing & Sales Division, Pohang Iron & Steel Company (POSCO), China Branch Headquarter (Summer 2002) – [link]
    • ZPSS in near Shanghai – wonderful experience!!
  • US Army Commendation Medal (ARCOM) by the United States Forces Korea (USKF) Commander (2001) – [link]
    • Finished 2 years mandatory military service in the “Second To None” Division
  • Samsung Electronics Scholarship, Korea (1996) –[link]

 

 

Useful Links

 

 

Fun Work Related

  • Sports
  • Book
    • The Lord of The Rings (by J. R. R. Tolkin): best of the best!!
    • Mere Christianity (by C. S. Lewis): logical, not just theological
    • American Vertigo (by Bernard-Henri Lévy): Interesting writeup about the US by a French philosopher
  • Arts
    • Neo-impressionism works by Vincent Van Gogh, still arts by Eugène Delacroix
    • Modern Paintings by René Magritte and Mark Rothko (I could see some Rothko’s works on the 4th floor of the ENS building!!)
  • Music
    • I like Baroque Cello played by Anner Bylsma and Pieter Wispelwey. I also like Mischa Maisky and Hanna Chang.
    • I also like Chamber Orchestra (Sejong Soloists) and Cello, Viola (Richard Yongjae O'neil) and Piano (Maurizio Pollini, Martha Argerich)
  • Travel
    • I just passed 200,000 overall flight miles. My goal is to be “A Million Miler” before my age 45.
    • I love my home country, Korea. It’s small (just one fifth of Texas) but full of cozy places. Size doesn’t matter at all (not like Hooters).

 

Last Updated in Feb 2008