Current Research Interests:

• Limited feedback techniques for single user, multiuser, and cooporative MIMO communication systems
• Codebook design
• Signal processing on manifolds and related mathematics in geometry and Lie groups

Resources:

• My limited feedback codebook resesource page
• To Prof. David Love's Grassmannian Packing resource

Publications:

• T. Inoue and R. W. Heath, Jr., "Predictive Coding on the Grassmann Manifold," in preparation.
  
  
• T. Inoue and R. W. Heath, Jr., "Kerdock Codes for Limited Feedback Precoded MIMO Systems," accepted for publication in IEEE Trans. on Signal Processing.
  
  
• T. Inoue and R. W. Heath, Jr., "Geodesic Prediction for Limited Feedback Multiuser MIMO Systems in Temporally Correlated Channels," in Proc. IEEE Radio & Wireless Symposium, pp. 167 - 170, San Diego, CA, January 18 - 22, 2009. First place student paper award.
  
  
• C. B. Chae, T. Inoue, D. Mazzarese, and R. W. Heath, Jr., "Non-iterative Multiuser MIMO Coordinated Beamforming with Limited Feedforward," in Proc. IEEE Int. Conf. on Acoustics, Speech and Signal Proc., pp. 2393 - 2396, Las Vegas, NV, March 30 - April 4, 2008.
  
  
• T. Inoue and R. W. Heath, Jr., "Kerdock Codes for Limited Feedback MIMO Systems," in Proc. IEEE Intl. Conf. on Acoustics, Speech and Signal Proc., pp. 3113 - 3116, Las Vegas, NV, March 30 - April 4, 2008.
  
  
• C. B. Chae, D. Mazzarese, T. Inoue and R. W. Heath, Jr., "Coordinated Beamforming for the Multiuser MIMO Broadcast Channel with Limited Feedforward," IEEE Trans. on Signal Processing, vol. 56, no. 12, pp. 6044 - 6056, December 2008.
  
  
• M. Milosevic, T. Inoue, P. Molnar, and B.L. Evans, "Fast Unbiased Echo Canceller Update During ADSL Transmission," IEEE Trans. on Communications, vol. 51, no. 4, pp. 561 - 565, April 2003.

Books:

• R. W. Heath, Jr. and WSIL members, Advanced MIMO Communication, to be published by Cambridge University Press.
  
• C. Chae, K. Huang, T. Inoue, "MIMO Technologies for WiMAX Systems: Present and Future", WiMAX Evolution: Emerging Technologies and Applications, to be published by Wiley.

Talks:

• T. Inoue and R. W. Heath, Jr., "Limited Feedback Design in LTE and Recent Advances," for 3GPP Long Term Evolution Uplink and Downlink workshop at IEEE Radio & Wireless Symposium, January 18, 2009.

Patents:

• UT Austin, Office of Technology Commercialization: R. W. Heath, Jr., and T. Inoue, "System and Method for Switching Transmission Method to Multiple Users from Multiple Antennas."
• UT Austin, Office of Technology Commercialization: R. W. Heath, Jr., and T. Inoue, "Method for Prediction of Channel State Information in Multi-Antenna Communication Systems."
• UT Austin, Office of Technology Commercialization: R. W. Heath, Jr., and T. Inoue, "Method for Channel State Information Prediction and Feedback in Multi-Antenna Communication Systems."
• UT Austin Office of Technology Commercialization: R. W. Heath, Jr., and T. Inoue, "Codebook Tables for Encoding and Decoding Partial Channel State Information in a Multiple-Input Multiple-Output (MIMO) System."
• US 6,781,965: M. Milosevic, P. R. Molnar, T. Inoue, and M. A. Pendleton, "Method and apparatus for echo cancellation updates in a multicarrier transceiver system."
• US 6,683,859: P. Molnar, T. Inoue, and M. A. Pendleton, "Method and apparatus for echo cancellation updates in a multicarrier transceiver system."
  

Work experience:

• CTO and co-founder, Fish Technologies, Inc., Tokyo, Japan
• Consultant Engineer, Cybernetics Technology Inc., Tokyo, Japan
• DSP Designer, Motorola Inc., Austin, TX
• Design engineer intern, AKM Design Tek, San Diego, CA
• Design engineer intern, Celwave RF Inc., Corvallis, OR

Academic experience:

• Research assistant under Prof. Robert W. Heath, Jr., The University of Texas at Austin
• Research assistant under Prof. Sayfe Kiaei, Oregon State University
• Grader: EE313 Linear System Theory, The University of Texas at Austin
• Teaching assistant: EE381k Digital Communications, The University of Texas at Austin
• Laboratory assistant: ECE322 Electronic Circuits, Oregon State University

Professional activities:

• IEEE Microwave Theory & Techniques society, Web Publishing Committee 2009- Present
  
  
• Steering committee member: IEEE Radio Frequency Integrated Circuits Symposium 2001 - Present
• Steering committee member: IEEE Radio & Wireless Symposium 2003 - Present
  
  
• Reviewer for IEEE Transactions on Communications (2007 - Present)
• Reviewer for IEEE Transactions on Vehicular Technology (2007 - Present)
• Reviewer for IEEE Transactions on Wireless Communications (2007 - Present)
  
  
• Conference paper reviews
  • ISIT 2009
  • Globecom 2007 - 2008
  • WCNC 2008
  • ICC 2008

Honors and memberships:

• 2009 IEEE Radio & Wireless Symposium, 1st place, student paper competition
• 2004 IEEE MTT-S Meritorious Service Award
• Member of IEEE: CAS, COMSOC, MTTS, and SPS

Misc activities:

• Semi-finalist in 2004 UT Austin Idea To Product Competition with Johann Chiang, "Wireless Audio Visual Entertainment (WAVE)"

Links:

• Other random interesting things
• WindoWSIL Blog : Wireless Systems Innovation Laboratory at UT Austin
• MIMO Wireless Inc. : A consulting, educational, and design company led by Prof. Heath
• Dolphin Systems Inc. : Japanese company specialized in signal processing/baseband consulting and Windows Mobile software development.
• WiMAX.com: Great source for WiMAX related info.