Etc.
Talks
[1] Overview of Multi-Cell MIMO Technologies, Samsung Advanced Institute of Technology, May 2009, 3 hrs - Invited
[2] Multiuser/Multi-Cell MIMO Transmission with Coordinated Beamforming, Yonsei University, May 2009, 2 hrs - Invited
[3] Multiuser/Multi-Cell MIMO Transmission with Coordinated Beamforming, Invited Speaker, IEEE CTW, May 2009, 30min. - Invited
[4] Multiuser/Multi-Cell MIMO Transmission with Coordinated Beamforming, Bell Labs, March 2009 2 hrs - Invited
[5] Multiuser/Multi-Cell MIMO Transmission with Coordinated Beamforming, SEAS, Harvard University, 2 hrs - March 2009
[6] Coordinated Wireless Multiantenna Networks, Texas A&M University, Nov. 2008 - Invited
[7] Revisit Matrix Multiplications: Dot, Cross, and Scalar Triple Products and Applications to Interference Alignments with Eigen Combining, WNCG Student Seminar, Nov. 2008
[8] Non-iterative Multiuser MIMO Coordinated Beamforming with Limited Feedforward, IEEE ICASSP, April 2008 (poster)
[9] A Low Complexity Linear Multiuser MIMO Beamforming System with Limited Feedback, CISS, March 2008
[10] Jointly Optimized Multiuser Beamforming for the MIMO Broadcast Channel with Limited Feedback, IEEE PIMRC, Sep. 2007 - Invited
[11] Simple Linear Multi-user MIMO Solutions for Achieving the Sum Capacity, UKC, Aug., 2007 - Invited (poster)
[12] Coordinated Beamforming for Multiuser MIMO Systems, University of Minnesota, July, 2007
[13] Multi-user MIMO Systems, Samsung Advanced Institute of Technology, May, 2007 - Invited
[14] Opportunistic MIMO Systems, Inha University, May, 2007 - Invited
[15] Near Sum Capacity Achieving Linear Multi-user MIMO Systems, WNCG Student Seminar, Feb. 2007
[16] MIMO Solutions for Relay Networks, Samsung Electronics, Feb., 2007 - Invited
[17] Coordinated Beamforming for Multiuser MIMO Systems with Limited Feedforward, Asilomar Conference, Oct. 2006 - Invited
[18] Achievable Sum Rate Bounds of Zero-forcing based Linear Multi-user MIMO Systems, Allerton Conference, Sep. 2006
[19] Coordinated Beamforming with Grassmannian Codebook, IEEE CTW, May 2006 (poster)
[20] MIMO for WiBro, SK Telecom, Oct., 2005 (20 audiences) - Invited
[21] Multi-user MIMO Systems, Special Lecture, Seoul National University, Sep. 2005 (15 audiences) - Invited
[22] TTA WiBro Workshop, Seoul Kyoyuk Munhwa Hoekwan, Sep.2005 (250 audiences) - Invited
[23] MIMO Solutions for IEEE802.16e, Graduate Course, Korea University, Dec. 2004 (15 audiences) - Invited
Technical Program Committee (TPC)
- Asia-Pacific Signal and Information Processing (APSIPA) 2010, Track Chair
Reviewer for the Following Journals and Conferences
- IEEE Journal of Selected Areas in Communications (2007~current)
- IEEE Transactions on Signal Processing (2007~current)
- IEEE Transactions on Mobile Computing (2007~current)
- IEEE Transactions on Communications (2006~current)
- IEEE Transactions on Wireless Communications (2006~current)
- IEEE Transactions on Vehicular Technology (2005~current)
- IEEE/ACM Transactions on Networking (2009~current)
- IEEE Communications Letter (2005~current)
- IEE Proc. Communications (2006~current)
- Journal of Communication Networks (2007~current)
- Eurasip Journal on Wireless Communications and Networking (2006~current)
- Eurasip Journal on Advances in Signal Processing (2006~current)
Reviewer for the Following Journals and Conferences
- International Symposium on Communications and Information Technologies (2007)
- IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (2007, 2008)
- IEEE Vehicular Tech. Conf. (2005, 2006, 2007, 2008, 2009)
- IEEE International Symposium on Wireless Pervasive Computing (2005)
- IEEE International Conference on Communications (2005, 2006, 2007, 2008, 2009)
- IEEE Workshop on Signal Processing Advances in Wireless Communications (2006, 2007, 2008)
- IEEE International Symposium on Information Theory (2006, 2007, 2008, 2009)
- IEEE Globecom Conference (2007, 2008, 2009)
- IEEE International Conference on Acoustics, Speech, and Signal Processing (2006, 2007, 2008,2009)
Contributions to Standardization Bodies
[1] IEEE802.16d, Space Time Preamble Sequence in OFDM System, March 2003
[2] WWRFbis8, Adaptive Spatial Modulation for OFDM-MIMO, Beijing, Feb. 2004
[3] WWRFbis8, System Level Performance Evaluation of OFDMA Forward Link’, Beijing, Feb. 2004
[4] WWRFbis8, Space Time LDPC Codes ’, Beijing, Feb. 2004
[5] WWRF11, Propagation Characteristics for Future Communication Systems, Oslo, June 2004
[6] WWRF12, A Constellation-Rotation Based Precoding Approach Enabling Reduced Complexity Full-Diversity Full-Rate Space Time Block Codes, Toronto, Nov. 2004
[7] IEEE802.16e #32, Enhanced MIMO Transmission Schemes for Cellular OFDMA Systems, Portland, July, 2004 (accepted)
[8] IEEE802.16e #32, Improved Data and Pilot Allocation for Cellular OFDMA Systems with Multiple Antennas, Portland, July, 2004 (accepted)
[9] IEEE802.16e #33, H-ARQ MAC Support for MIMO OFDMA, Seoul, Sep., 2004 (accepted)
[10] IEEE802.16e #33, Enhanced MIMO support for Cellular OFDMA Systems using Midambles, Seoul, Sep., 2004 (accepted)
[11] IEEE802.16e #33, Enhancement to Space-Time Codes for 3 Transmit antennas for the OFDMA PHY, Seoul, Sep., 2004 (accepted)
[12] IEEE802.16e #33, An Efficient CQICH Signaling for MIMO OFDMA, Seoul, Sep., 2004 (accepted)
[13] IEEE802.16e #34, An Efficient AMC Zone Allocation within H-ARQ for MIMO OFDMA, Nov., 2004 (accepted)
[14] IEEE802.16e #34, Framework for Enabling Closed-loop MIMO for OFDMA, Nov., 2004 (accepted)
[15] IEEE802.16e #34, Enhancement of STC with Antenna Grouping, Nov., 2004 (accepted)
[16] IEEE802.16e #34, Closed Loop MIMO Precoding with Minimal Feedback for MIMO OFDMA Systems, Nov., 2004
[17] IEEE802.16e #34, Enhancement to 3 Tx Open-loop MIMO Transmission, Nov., 2004 (accepted)
[18] IEEE802.16e #34, Clarification on STC Encoding for MIMO OFDMA, Nov., 2004 (accepted)
[19] IEEE802.16e #35, Normal MAP Extension for MIMO H-ARQ, Jan., 2005 (accepted)
[20] IEEE802.16e#35, Extension of Collaborative Spatial Multiplexing in OFDMA, Jan., 2005 (accepted)
[21] IEEE802.16e #35, Enhancement to 3Tx Open-loop STC Transmission, Jan., 2005 (accepted)
[22] IEEE802.16e #35, Enhancement for Rate2, 4-transmit Antenna STC, Jan., 2005 (accepted)
[23] IEEE802.16e #35, An Efficient AMC Zone Configuration within H-ARQ for MIMO OFDMA, Jan., 2005 (accepted)
[24] IEEE802.16e #35, Enhancement of STC with Antenna Grouping, Jan., 2005 (accepted)
[25] IEEE802.16e #35, Framework for Enabling Closed-loop MIMO for OFDMA, Jan., 2005 (accepted)
[26] IEEE802.16e #36, Support for Closed-Loop MIMO in H-ARQ MAP IE, March, 2005 (accepted)
[27] IEEE802.16e #36, Clarification on STC Data Mapping for Optional Zones, March, 2005 (accepted)
[28] IEEE802.16e #36, Modification of Open loop STC, March, 2005 (accepted)
[28] IEEE802.16e #36, Rotation Matrix R for the Codebook based CL MIMO Scheme, March, 2005
Patents
[1] KOR/USA/Etc, Method for Checking User Information and Calling the User Automatically On Lock State in Portable Telephone, 10-2001-0057917, Sep. 2001 – Granted, Main inventor
[2] KOR/USA/Etc, System for Hand Off using Multi Party Service in Mobile Communication System and Method Thereof, 10-2002-0000755, Jan. 2002 – Granted, Main inventor
[3] KOR/USA/Etc, Outer Loop Power Control Apparatus in Mobile Communication System and Control Method Thereof, 10-2002-0001979, Jan. 2002 – Granted, Co-inventor
[4] KOR/USA/Etc, Apparatus and Method for Determining Soft Hand-Over in CDMA Mobile Communication System, 10-2002-0001981, Jan.2002 – Granted, Main inventor
[5] KOR/USA/Etc, Apparatus and Method for Determining Soft Hand-Over in CDMA Mobile Communication System, 10-2002-0001982, Jan. 2002 – Granted, Main inventor
[6] KOR, Method for Allocating a Transmission Power of Base Transceiver Subsystem in a Universal Mobile Telecommunications System, 10-2002-0016424, Mar. 2002 – Granted, Main inventor
[7] KOR, Method for Cell ID Code Assignation in Mobile Communication System, 10-2002-0046603, Aug.2002 – Granted, Main inventor
[8] KOR, Apparatus and Method for Remote Control of Mobile Station, 10-2002-0054642, Sep. 2002 – Pending, Main inventor
[9] KOR/USA/Etc, Apparatus for Generating Preamble Sequence in Orthogonal Frequency Division Multiplexing System and Method Thereof, 10-2002-0075705, Nov.2002 – Pending, Co-inventor
[10] KOR/USA/Etc, Apparatus for Generating Preamble Sequence in Communication System using Orthogonal Frequency Division Multiplexing Scheme and Method Thereof, 10-2002-0076419, Dec. 2002 – Pending, Co-inventor
[11] KOR/USA/Etc, System for Hand Over using Paging Procedure in Mobile Communication System and Method Thereof, 10-2003-0012050, Feb. 2003 – Pending, Main inventor
[12] KOR, Apparatus and Method for Generating a Preamble Sequence in Communication Systems using Orthogonal Frequency Division Multiplexing Scheme, 10-2003-0022075, April 2003 – Pending, Co-inventor
[13] KOR/USA/Etc, Apparatus for Generating Preamble Sequences in Communication System using Orthogonal Frequency Division Multiplexing Scheme and Method Thereof, 10-2003-0038817, June 2003 – Pending, Co-inventor
[14] KOR, Apparatus for Generating Preamble Sequences in Communication System using Orthogonal Frequency Division Multiplexing Scheme and Method Thereof, 10-2003-0038811, June 2003 – Pending, Co-inventor
[15] KOR/USA/Etc, Apparatus and Method for Receiving Data in Mobile Communication System using Adaptive Antenna Array Scheme, 10-2003-0043849, June 2003 – Pending, Main inventor
[16] KOR/USA/Etc, Apparatus and Method for Receiving Data in Mobile Communication System using Adaptive Antenna Array Scheme, 10-2003-0048898, July 2003 – Pending, Main inventor
[17] KOR/USA/Etc, Apparatus for Generating Preamble Sequences in an Orthogonal Frequency Division Multiplexing Communication System using a Plurarity Of Transmission Antennas and Method Thereof, 10-2003-0048461, July 2003 – Pending, Co-inventor
[18] KOR, Apparatus and Method for Controlling Adaptive Modulation and Coding Scheme in a Mobile Communication System using Orthogonal Frequency Division Multiplexing Scheme, 10-2003-0046203, July 2003 – Pending, Co-inventor
[19] KOR/USA/Etc, Apparatus for Generating Preamble Sequences in an Orthogonal Frequency Division Multiplexing Access Communication System using a Plurarity Of Transmission Antennas and Method Thereof, 10-2003-0049896, July2003 – Pending, Co-inventor
[20] KOR/USA/Etc, System and Method for Transmitting/Receiving Signal in Mobile Communication System using Multiple Input Multiple Output Adaptive Antenna Array Scheme, 10-2003-0051830, July 2003 – Pending, Main inventor
[21] KOR/USA/Etc, System and Method for Transmitting/Receiving Signal in Mobile Communication System using Multiple Input Multiple Output Adaptive Antenna Array Scheme, 10-2003-0051833, Aug. 2003 – Pending, Main inventor
[22] KOR/USA/Etc, Apparatus and Method for Receiving Data in Mobile Communication System using Adaptive Antenna Array Scheme, 10-2003-0054684, Aug. 2003 – Pending, Main inventor
[23] KOR/USA/Etc, Apparatus and Method for Receiving Data in Mobile Communication System using Adaptive Antenna Array Scheme, 10-2003-0057550, Aug. 2003 – Pending, Main inventor
[24] KOR/USA/Etc, Apparatus and Method for Dynamic Assigning Resource in an Orthogonal Frequency Division Multiplexing Communication, 10-2003-0063849, Sep.2003 – Pending, Co-inventor
[25] KOR/USA/Etc, Apparatus and Method for Transmitting/Receiving Uplink Pilot Signal in a Communication System using Multiple Access Scheme, 10-2003-0070434, Sep. 2003 – Pending, Co-inventor
[26] KOR/USA/Etc, Apparatus and Method for Controlling Transmission Scheme according to Channel State in a Communication System, 10-2003-0070436, Sep, 2003 – Pending, Co-inventor
[27] KOR/USA/Etc, Method and Apparatus For Space-Time Coding Using Lifting Low Density Parity Check Codes In A Wireless Communication System, 10-2003-0070997, Oct. 2003 – Pending, Co-inventor
[28] KOR, “Apparatus for Generating Preamble Sequence in Orthogonal Frequency Division Multiplexing System and Method Thereof, 10-2003-0085176, Nov 2003 – Pending, Co-inventor
[29] KOR/USA/Etc, Apparatus and Method for Transmitting Data by Selected Antenna in Closed Loop Multiple Input Multiple Output Mobile Communication System, 10-2003-0087896, Dec. 2003 – Pending, Main inventor
[30] KOR/USA/Etc, “Apparatus and Method for Encoding/Decoding Space Time Low Density Parity Check Code with Full Diversity Gain, 10-2004-0007978, Jan. 2004 – Pending, Co-inventor
[31] KOR/USA/Etc, Apparatus and Method for Encoding/Decoding Space Time Block Code in a Mobile Communication System using Multiple Input Multiple Output Scheme, 10-2004-0032411, May 2004, -Pending, Main inventor
[32] KOR/USA/Etc, Apparatus and Method of Space Time Block Code for Even Tx Antennas with Full Rate and Full Diversity, 10-2004-0045924 , June 2004, -Pending, Main inventor
[33] KOR/USA/Etc, Apparatus and Method for Controlling Tx Mode in Mobile Communication System using MIMO, 10-2004-0043402 , June 2004, - Pending, Main inventor
[34] KOR/USA/Etc, Apparatus and Method for Encoding/Decoding Space Frequency Block Code for Orthogonal Frequency Division Multiplexing System, 10-2004-0045526 , June 2004 – Pending, Main inventor
[35] KOR/USA/Etc, Soft Handoff System 5and Method for Cellular OFDMA Systems with Multiple Antennas, 10-2004-0046780, June 2004 – Pending, Main inventor
[36] KOR/USA/Etc, Apparatus and Method for Transmitting Pilot in a OFDMA System having Multiple Transmitting Antennas, 10-2004-0052787, July 2004 – Pending, Main inventor
[37] KOR/USA/Etc, Apparatus and Method of Space Time Block Code for Increasing the Coding Advantages, 10-2004-0064900, Aug. 2004 – Pending, Main inventor
[38] KOR/USA/Etc, Apparatus and Method of Space Time Block Code for Increasing Performance, 10-2004-0064846, Aug. 2004 – Pending, Main inventor
[39] KOR/USA/Etc, Apparatus and Method for Transmitting Data using Full Rate Full Diversity STBC, 10-2004-0064902, Aug. 2004- Pending, Main inventor
[40] KOR/USA/Etc, Method for Constructing a MAP Message for Hybrid Automatic Repeat Request Transmission and Allocating Automatic Repeat Request in a Broadband Wireless Access System using Multiple Antenna, 10-2004-0064903, Aug. 2004 – Pending, Co-inventor
[41] KOR/USA/Etc, Apparatus and Method of Space Time Frequency Block Code for Increasing Performance, 10-2004-0064799, Aug. 2004 – Pending, Main inventor
[42] KOR/USA/Etc, Apparatus and Method of Space Time Block Code for 2Tx Antennas with Full Diversity and Full Rate, 10-2004-0068149, Aug. 2004 – Pending, Main inventor
[43] KOR/USA/Etc, Double space time diversity with better diversity gain, Sep. 2004 – Co-inventor
[44] KOR/USA/Etc, Spatial multiplexing with diversity gain, Sep. 2004 – Co-inventor
[45] KOR/USA/Etc, Simplified Pair-wise Soft Bit Metric, Sep. 2004 – Co-inventor
[46] KOR/USA/Etc, PAPR Reduction Scheme for FDFR, Sep. 2004 – Co-inventor
[47]+ 60 more patents