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Introduction Major Achievements and Activities Funding sources Research Facilities Laboratory
Introduction
The group of Communications and Networks in the School of Electrical Engineering at Korea University is exploring the leading-edge technologies in Broadband Communication, Information Systems, and RF / Microwaves. Major projects in this sector include advanced next-generation internet system, IP mobility solution for wireless networks, newly-invented unified system theory named Weak Linear System Theory, cooperative multi-hop techniques for advanced relay system infrastructure with space-aware multiple access, millimeter-wave circuit and antenna design, network system architecture related to USN (Ubiquitous Sensor Networks) and RFID, advanced techniques on orthogonal frequency division multiplexing (OFDM), and wireless channel modeling.
In the field of Communication and Networks, there are 9 full-time professors, 51 Ph.D. students, 40 MS students and 4 Post-doctor fellow.
Major Achievements and Activities
  • Korea presidential award for contribution to the IT technologies (2007).
  • l  Best Paper Award in ICNC, Italy (2011).
  • MAXIM (Multimedia Access System-level Simulator) developed for service-level engineering solution to Broadband Wireless (sponsored by SKT).
  • Sensor OS and middleware for military surveillance and reconnaissance(sponsored by ADD, LIG NEX1 and Samsung Thales).
  • An Energy Efficient MAC Protocol for u-Health Care (sponsored by  Samsung Advanced Institute of Technology).
  • IT Young Engineer Award as the IEEE/IEEK joint award in 2006.
  • Best Paper Award at APCC in 2006 and IEEE VTC in 2009.
  • Best Research Award at Korea Institute of Communications and Information Sciences in 2011.
  • Student Paper Award, IEEE MTT-S International Microwave Symposium, 2005.
  • IEEE Communication Society Asia Pacific Board Outstanding Young Researcher Award, 2009.06.
  • LG Yonam Foundation Overseas Research Professor, 2012.06.
  • Silver Best Paper Award at IEEE Seoul Section Student Paper Contest.
  • Over 697 international journal and conference papers
Funding sources
  • The Ministry of Information and Communications
  • The Ministry of Education
  • Korea Science and Engineering Foundation
  • Korea Research Foundation
  • LG Electronics Inc.
  • LG-Nortel Co.
  • Samsung Electronics Co., Ltd.
  • Samsung SDI Co., Ltd.
  • Samsung Electro-Mechanicals Co., Ltd.
  • KT Corp.
  • SK Telecom
  • Agency for Defense Development
  • Electronics and Telecommunications Research Institute
  • Korean Electronics Technology Institute
  • Korea Institute for Defense Analyses
  • Korea Institute of Science and Technology
  • Asia Design Chips (ADC) Co.
  • Skycross Korea
  • Telion Co.
Local industry and government organizations are investing 2 billion won per year on cutting-edge technologies & researches in the communications and networks area.
Research Facilities

The Communications and Networks Sector in the School of Electrical Engineering jointly operates a state-of-the-art Stand-alone Network Testbed for Broadband Communications, High Frequency Circuit Design and Testing Laboratory to provide top-quality undergraduate education and graduate-level research. The facility includes

  • Stand-alone Network Testbed (TNIR)
    • 16 core single mode fiber physical network between 3 buildings in campus
    • Gbps link between TNIR and KOREN (Nationwide Korea Research Network operated by KT)
    • Juniper M7i router, Cisco router 7505, 7204, Raonet MPLS router R5, Paxcom ATM switch NAX-5000
    • LAN MCU Ezenia Encounter 3000, HD_class Teleconference Devices
  • Design Software
    • 5 packages of Advanced Design Systems (Agilent ADS)
    • OpNet Network Design Simulator
    • OptCom Optical Network Simulator
    • SystemView Communication Simulators
  • Fabrication
    • PCB board processing unit
    • Wire bonder (Kuilcke & Soffa 4524)
  • Testing Equipments
    • Network analyzers (Agilent E5071B-50GHz, Agilent N5230A-20GHz, Two sets of Agilent E8364B-8GHz)
    • RF probe station (Cascade S9000)
    • Near-field antenna testing system (NSI 500V)
    • Semiconductor parameter analyzer (KEITHLEY 4200)
    • Noise figure analyzer (Agilent N8975A-20GHz)
    • Digital error analyzer (Synthesis BA1500)
    • Signal generators (four sets of Agilent E8247C-20GHz)
    • Spectrum analyzers (four sets of LG SA990-26.5GHz, SA930-3GHz)
    • Ultra Fast Pulse Pattern Generator (ADVANTEST D3186)
    • Optical Spectrum Analyzer (ADVANTEST Q8384)
    • 20 GHz Oscilloscope (HP54120B)
    • Tunable Laser Source (Santec ECL-200)
Laboratory
  • Communication and Informaion Systems Lab
  • The Communications Network Laboratory (CNL) is carrying out the research projects in the area of the converged wireless and wired networks, mainly focusing on the following topics.
    • Enabling technologies of IP mobility in converged wireless and wired IP networks;
    • Implementation of cognitive software-defined radio (C-SDR) access techniques supporting broadband and mobile multimedia services;
    • Design and analysis of WDM-based optical network architectures for broadband IP-based services;
    • Techniques of all-optical packet processing;
    • Modeling and analysis of Indoor Infra-red wireless networking.
    The developed technologies are transformed into various technical patents, and under practical applications in cooperation with industry and research institutes.

    For more information, contact : Dr. Jinwoo Park

    Tel
    +82-2-3290-3225
    E-mail
    jwpark@korea.ac.kr
    Homepage
    http://kunet.korea.ac.kr
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  • Wireless Information Systems Engineering Laboratory
  • Wireless Information Systems Engineering Laboratory image The WISE lab concentrates on the design and optimization of wireless broadband system with special emphasis on physical layer/medium access control layer design, including radio resource management. Furthermore, one of our on-going tasks is to explore a new paradigm of cognitive radio (CR) and cooperative communication with the objective of designing the ever intelligent communication system and evaluating its end-to-end performance. We identify the major components of these research and development efforts as :
    • SPACE-4 : Spatially Advanced Cross-layer Engineering for 4th Generation Mobile System
    • OFDM Modem with MIMO for broadband wireless
    • Radio resource management, including band and packet scheduling, for MIMO-OFDMA system
    • Advanced error control with hybrid ARQ for MIMO-OFDMA system
    • Multimedia Access System-level Simulator (MAXIM)
    • CHARISMA : Cooperative Multi-Hop Communication for Advanced Relay System Infrastructure with Space-aware Multiple Access
    • Mobile Multi-hop relay system
    • Cognitive and cooperative communication for mobile systems
    • EVERGREEN : Embedded Very Energy-efficient Resource-Gradient REconfigurablE Networking
    • Ultra Low Power and Ultra High Data Rate Transmission Technologies
    • Power and Bandwidth Efficient Wireless MAC Technologies
    • Very Large Scale Ad Hoc Networking Technologies
    • MASH : Media-aware Seamless Handover for IP Mobility
    • Cross-layer-designed IP mobility protocol
    • Vertical handover for ubiquitous networking

    For more information, contact : Dr. Chung G. Kang

    Tel
    +82-2-3290-3236
    E-mail
    ccgkang@korea.ac.kr
    Homepage
    http://wiselab.korea.ac.kr
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  • Microwave Laboratory
  • Power Engineering Laboratory image The Microwave Group at Korea University performs graduate-level research on variety of high frequency devices, circuits and systems with a strong emphasis on experimental work and industrial laboratory collaborations. The current research topics include:
    • Active millimeter-wave and microwave analog circuit design and testing for frequencies extending up to W-Band;
    • Quasi-optical microwave power combining techniques using integrated active antennas;
    • Microwave component packaging techniques related to various types of waveguides and transition structures;
    • Metamaterial and electromagnetic bandgap (EBG) structures for special antenna applications;
    • Low-profile reduced-size antennas for MHz frequency ranges;
    • Efficient MIMO antenna design techniques;
    • Continuous-wave (CW) signal generation for terahertz sub-millimeter waves;
    • RF sensors for electronic healthcare applications.

    For more information, contact : Dr. Moonil Kim

    Tel
    +82-2-3290-3247
    E-mail
    mkim@korea.ac.kr
    Homepage
    http://thomas.korea.ac.kr
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  • Future Information & Network Architecture Laboratory
  • Future Information Network Architecutre Laboratory (FINAL) is actively performing various and practical research related to ubiquitous and wireless networks. The research topics are as follows:
    • Design and Implementation of network system architecture related to USN (Ubiquitous Sensor Networks) and RFID (Radio Frequency Identification) using Hardware and Software techniques of embedded systems.
    • Research and development of Location dependent application systems for Ubiquitous Context Aware computing environment through Embedded Hardware and Software approach.
    • Research on the architecture and protocols required to realize a ubiquitous network, especially focused on MAC and routing algorithm for mobile ad hoc, wireless mesh, and wireless sensor networks.
    • Research on the design of the wireless network architecture to facilitate transporting isochronous data, such as multimedia, over wireless home networks

    For more information, contact : Dr. Doo Seop Eom

    Tel
    +82-2-3290-3248
    E-mail
    eomds@korea.ac.kr
    Homepage
    http://final.korea.ac.kr
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  • Communication Systems Laboratory
  • The Communication Systems (CommSys) Laboratory investigates communication theory and its application to the design and performance evaluation of wired, wireless, and satellite communication systems. Particular interest is in the development of digital communication technique for high data rate wireless services. On going research topics include:
    • Wireless channel modeling
    • Adaptive modulation and coding
    • Low complexity diversity design
    • Spatial division multiple access.
    • MIMO-OFDM system design
    • mm-wave Gigabits WPAN communication system design
    Our research is usually carried out in the form of combining (1) performance analysis of the communication systems, (2) link level simulation, and (3) hardware and system design synergies.

    For more information, contact : Dr. Young-Chai Ko

    Tel
    +82-2-3290-3254
    E-mail
    koyc@korea.ac.kr
    Homepage
    http://commsys.korea.ac.kr
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  • Wireless Communication Laboratory
  • The research goal of the Wireless Communication Laboratory is to improve the communication system performance by applying advanced digital communication theory for wireless communication systems. Especially, we are focusing on signal processing and channel coding techniques to increase the system capacity and the transmission data rate in the Physical layer. Also, we are conducting research on the diversity techniques used in multi-input multi-output (MIMO) systems.
    • Wireless Communication Theory
    • Orthogonal Frequency Division - Multiplexing (OFDM)
    • Multi-Input Multi-Output (MIMO) theory
    • Space Time signal processing
    • Antenna diversity scheme
    • Signal processing for communications
    • Channel equalization
    • Physical layer modem design
    • Information Theory
    • Capacity analysis
    • Dirty paper coding
    • Multi-user system analysis
    • Space Time Codes
    • Turbo codes
    • Low Density Parity Check (LDPC) codes
    • Iterative decoding
    • Bit-Interleaved Coded Modulation (BICM)
    • Efficient Decoder Architecture

    For more information, contact : Dr. Inkyu Lee

    Tel
    +82-2-3290-3253
    E-mail
    inkyu@korea.ac.kr
    Homepage
    http://wireless.korea.ac.kr
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  • Communication and Informaion Systems Lab
  • In Communication and Coding Laboratory, we are focusing on error control codes and related digital communication techniques for the physical layer of digital communication systems.
    • Turbo codes
    • LDPC codes
    • Turbo equalizer and iterative detection
    • Iterative Space-Time processing
    • MIMO combined with turbo-like codes
    • Raptor code and Network coding

    For more information, contact : Dr. Jun Heo

    Tel
    +82-2-3290-4881
    E-mail
    junheo@korea.ac.kr
    Homepage
    http://cislab.korea.ac.kr/
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  • Mobile Network and Communications Lab
  • Mobile Networks and Communications (MNC) laboratory aims to develop novel wireless/mobile networking protocols and algorithms. Main research interests include mobility management, multimedia transmissions over wireless/mobile networks, heterogeneous wireless networks, and future Internet. Also, we conduct cutting-edge research for emerging wireless technologies such as wireless sensor networks (WSNs), wireless mesh networks (WMNs), wireless personal area networks (WPANs), and vehicular networks. MNC laboratory tries to balance theoretical analysis and practical implementations, and promotes active international collaborations and interdisciplinary research.

    For more information, contact : Dr. Sangheon Pack

    Tel
    +82-2-3290-4826
    E-mail
    shpack@korea.ac.kr
    Homepage
    http://mnc.korea.ac.kr
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  • Advanced RF Systems Lab
  • Silicon-based RF integrated circuits and systems
    • Advanced concepts in RF front-end building blocks for high-speed wireless communications
    • Microwave, milimeter-wave and up to tera-Hz frequency range
    • On-chip system integration
    • Wideband phased-array and timed-array systems
    • Smart-antenna and MIMO systems
    High-efficiency microwave circuits
    • Switching-mode nonlinear circuits - amplifiers, oscillators, frequency converters
    • Multi-mode, multi-band operations
    • Versatile design solutions
    Nonlinear stability analysis
    • Large-signal stabilization techniques
    • Novel analysis and design techniques for nonlinear microwave circuits

    For more information, contact : Dr. Sanggeun Jeon

    Tel
    +82-2-3290-4828
    E-mail
    sgjeon@korea.ac.kr
    Homepage
    http://arfsl.korea.ac.kr
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  • Next Generation Information Technology Laboratory
  • Next Generation Information Technology Laboratory (NGITL), in adhering to its namesake purpose, deals with a unified and mostly novel methodologies pertaining to communication, multimedia and intelligent systems. Current research issues of NGITL are :
    • Communication : Mobile Communication (CDMA, OFDM, STC, Coding and Information Theory);
    • Signal Processing and Multimedia : Multimedia Signal Processing (MPEG, GIS, IVHS) and Visualization (VR);
    • Intelligent System : Learning, Automation, Pattern Recognition (Parametric and Nonparametric) and Morphological Signal Processing.
    In addition to above classical areas, NGITL pioneers in a unified system theory (Weak Linear System Theory) that is envisioned to be the next-generation paradigm for IT (Communication, Signal Processing and Multimedia), BT, NT and CT.

    For more information, contact : Dr. Woonkyung Kim

    Tel
    +82-2-3290-3235
    E-mail
    mwkim@korea.ac.kr
    Homepage
    http://davinci.korea.ac.kr
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