Mobile Platform

  • Platform support for mobile collaboration
  • Platform support for mobile cloud computing
  • Multimedia contents sharing among mobile devices
  • Distributed computing across mobile devices

Cloud Computing Systems

  • Openstack: Cloud computing software
  • Scalable storage systems for cloud computing: Swift, Ceph, Cinder
  • Data reliability in cloud storage systems

Software Technologies for Storage Systems

  • Hard Disk
  • Flash Memory
  • Next-Generation Non-Volatile Memories
  • Hybrid Storage Devices and Systems


  • Data transmission mechanism for MOD systems, KOSEF(95-98)
  • Performance Test of RTOS's for IMT-2000 BSC, ETRI(98)
  • Implementing EC Supply Chain Management System(EC-SCM), Interpark(99)
  • Implementing Firewall system equipped with VPN facilities, SIGn Co. (99-2001)
  • Implementing Security Enhaced Linux Distribution Package, SIGn Co. (2000)
  • Analyzing the Safety of the Symmetric/Public Key Encryption Algorithms with Different Key Lengths, KISA(2001)
  • Media Streaming on the Peer-to-Peer Networks, HYU (2003)
  • Korea Construction Engineering Development Program, MoCT(2004-2007)
  • Implementing XML Translation Component for Contents Adaptation in Multi-Platform Environment, ETRI(2004)
  • A Study for e-Learning Contents Certification System, KAOCE(2004-2005)
  • Design of NAND flash memory based file system supporting transaction and record structure, KOSEF(2006-2007)
  • Operating System Design for Memory-Storage Fused Computer Systems, KOSEF NRL program(2007-2012)
  • Managing Multimedia Data for Contents Servers with Hybrid Storage, KOSEF(2007-2010)
  • Collective Intelligence-based User-Aware Web Search System, SDI(2008-2010)
  • Multimedia Object Placement on the Next-Generation Storage Device Architecture Using Layer Access Distribution, KOSEF(2009-2012)
  • Development of Core Technologies for Next Generation Hyper MLC NAND based SSD, MoKE(2010-2015)
  • Optimizing Large Scale Web Access Log Databases, The Attached Institute of ETRI (2011)
  • Development of Core System Technologies for Object-based SSD, NRF(2011-2014)
  • A Study on Validity of SSD-based In-Memory System, Samsung Electronics (2012. 5 - 2012. 10)
  • Next-Generation Technologies for Smart TV, Samsung Electronics (2012. 7 - 2013. 6)
  • Design of an Effective Compression-based FTL for SSD, SK Hynix (2012. 12 - 2014. 11)
  • Development of Core Software Platform Technologies for Smart Devices Collaboration, NRF (2014. 5 - 2017. 4)
  • Software Platform for ICT Equipments, IITP (2014. 5 - 2019. 4)
  • A Spatiotemporal Big Data Informatics Platform for Social Science Research and Its Applications, NRF (2015. 8 - 2019. 4)
  • Development of Object Storage for Cloud Services, TIPA (2015. 9 - 2016. 8)