Jihun Ha: Difference between revisions

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* JeongGil Ko, '''Jihun Ha''', Bum-sik Park, Seung-goo Lee, Hak-Lim Ko, “Virtual Mobile Backbones for Wireless Ad-hoc Networks with the support of Directional Array Antennas”
* '''Jihun Ha''', K. Lee, H. Kim and I. Kang, "A Snooping Rate Adaptation Algorithm for IEEE 802.11 WLANs", '''International Symposium on Wireless Pervasive Computing (ISWPC) 2008'''.  
 
* Juhong Min, '''Jihun Ha''', Sangki Yun, Inhye Kang, and Hyogon Kim, "Secure Vehicular Communication for Safety Application – A Measurement Study", '''IEEE Vehicular Technology Conference (VTC)-spring 2008'''
'''International Symposium on Wireless Pervasive Computing (ISWPC) 2007''' 
* JeongGil Ko, '''Jihun Ha''', Bum-sik Park, Seung-goo Lee, Hak-Lim Ko, “Virtual Mobile Backbones for Wireless Ad-hoc Networks with the support of Directional Array Antennas”, '''International Symposium on Wireless Pervasive Computing (ISWPC) 2007''' 
 
* '''Jihun Ha''', K. Lee, H. Kim and I. Kang, "A Snooping Rate Adaptation Algorithm for IEEE 802.11 WLANs"
 
'''International Symposium on Wireless Pervasive Computing (ISWPC) 2008'''.  
 
* Juhong Min, '''Jihun Ha''', Sangki Yun, Inhye Kang, and Hyogon Kim, "Secure Vehicular Communication for Safety Application – A Measurement Study"
 
'''IEEE Vehicular Technology Conference (VTC)-spring 2008'''




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* '''Simulation Tool:''' QualNet 4.0, NS-2
* '''Simulation Tool:''' QualNet 4.5, NS-2
** Modified simulator sources to remove a part of CRC checksum at MAC
** Modified simulator sources to remove a part of CRC checksum at MAC
** Modified standard IEEE 802.11, 802.16 module
** Modified standard IEEE 802.11, 802.16 module
Line 79: Line 71:
* Developing Efficient Support Mechanisms for Internet Traffic in 802.16 Base Station, POSDATA Corporation (Mar. 2008 – Jan. 2009)
* Developing Efficient Support Mechanisms for Internet Traffic in 802.16 Base Station, POSDATA Corporation (Mar. 2008 – Jan. 2009)
* Development of Security-Quality Guarantee Technology in Resilient Network, Ministry of Knowledge Economy (Mar. 2008 - Feb. 2010)
* Development of Security-Quality Guarantee Technology in Resilient Network, Ministry of Knowledge Economy (Mar. 2008 - Feb. 2010)
* Development of New Active Detection Mechanism and Counterplot against Botnet , Korea Information Security Agency (Mar. 2008 – present)
* Development of New Active Detection Mechanism and Counterplot against Botnet , Korea Information Security Agency (Mar. 2008 – Feb. 2011)
* U-Zone community technology, Ministry of Information and Communication (April. 2006 – present)
* U-Zone community technology, Ministry of Information and Communication (April. 2006 – Feb. 2011 )
* Vehicular network framework based on WiBro-WiFi interworking, Ministry of Education, Science and Technology (May. 2009 – present)
* Vehicular network framework based on WiBro-WiFi interworking, Ministry of Education, Science and Technology (May. 2009 – present)
* Rate Diverse Network Coding: Breaking the Broadcast Bottleneck - Sora Invitation for Proposals 2010, Microsoft Research (March. 2010 - present)
* Rate Diverse Network Coding: Breaking the Broadcast Bottleneck - Sora Invitation for Proposals 2010, Microsoft Research (March. 2010 - present)
Line 140: Line 132:




* '''Web:''' <nowiki>http://widen.korea.ac.kr</nowiki>
* '''Web:''' <nowiki>http://widen.korea.ac.kr</nowiki>/wiki
* '''Email''': jhha85@<nowiki>korea.ac.kr</nowiki>
* '''Email''': jhha85@<nowiki>korea.ac.kr</nowiki>
* '''Messenger: '''[mailto:bobsang2000@hotmail.com bobsang2000@hotmail.com] (MSN)
* '''Messenger: '''[mailto:bobsang2000@hotmail.com bobsang2000@hotmail.com] (MSN)
* '''Phone''': +82-2-3290-3569
* '''Phone''': +82-2-3290-3569
* '''Mobile''': +82-10-2533-7947
* '''Mobile''': +82-10-2533-7947

Revision as of 10:21, 8 July 2011

Jihun Ha


Curriculum Vitae
01 June 2010

Publications


  • Jihun Ha, K. Lee, H. Kim and I. Kang, "A Snooping Rate Adaptation Algorithm for IEEE 802.11 WLANs", International Symposium on Wireless Pervasive Computing (ISWPC) 2008.
  • Juhong Min, Jihun Ha, Sangki Yun, Inhye Kang, and Hyogon Kim, "Secure Vehicular Communication for Safety Application – A Measurement Study", IEEE Vehicular Technology Conference (VTC)-spring 2008
  • JeongGil Ko, Jihun Ha, Bum-sik Park, Seung-goo Lee, Hak-Lim Ko, “Virtual Mobile Backbones for Wireless Ad-hoc Networks with the support of Directional Array Antennas”, International Symposium on Wireless Pervasive Computing (ISWPC) 2007


Skills


  • Programming Language: C, C++, JAVA, MFC
    • Implemented a mobile game which works on mobile devices such as cellular phone.
    • Implemented DRM(Digital Rights Management) system by using hooking technique
    • Implemented a communication protocol of V2V communication by using socket programming


  • Simulation Tool: QualNet 4.5, NS-2
    • Modified simulator sources to remove a part of CRC checksum at MAC
    • Modified standard IEEE 802.11, 802.16 module
    • Manipulations for beaconing mechanism in 802.11p


  • Device Driver: Madwifi, Linux network device driver
    • Modified management frame to add new information
    • Modified management frame processing to use new information
    • Implemented the rate adaption algorithm for improved performance


  • OS: Linux
    • Modified TCP sources in Linux kernel to add other TCP option type
    • Implemented Transport Protocol like UDP in Linux kernel
    • Implemented Network Device Driver in Linux Kernel
    • Modified some sources in Linux kernel, such as File system, Network system and so on


Research Interests


  • Rate Adaptation Mechanism over IEEE 802.11 WLAN
  • Vehicular Ad hoc Network over IEEE 802.11p
  • Vertical Handover between WLAN and WMAN
  • Network Coding
  • Software Defined Radio
  • IEEE 802.11, 802.16, 802.16e (Mobile WiMAX)


Projects


  • Developing Efficient Support Mechanisms for Internet Traffic in 802.16 Base Station, POSDATA Corporation (Mar. 2008 – Jan. 2009)
  • Development of Security-Quality Guarantee Technology in Resilient Network, Ministry of Knowledge Economy (Mar. 2008 - Feb. 2010)
  • Development of New Active Detection Mechanism and Counterplot against Botnet , Korea Information Security Agency (Mar. 2008 – Feb. 2011)
  • U-Zone community technology, Ministry of Information and Communication (April. 2006 – Feb. 2011 )
  • Vehicular network framework based on WiBro-WiFi interworking, Ministry of Education, Science and Technology (May. 2009 – present)
  • Rate Diverse Network Coding: Breaking the Broadcast Bottleneck - Sora Invitation for Proposals 2010, Microsoft Research (March. 2010 - present)


Awards and Honors


  • College Scholarship, Korea University, 2004(2st semester), 2005 (1st semester)


Education


  • Ph.D. in Computer Science, Mar. 2010 – present (1st semester)

Wireless Data Communication Laboratory

Korea University, South Korea

Advisor: Dr. Hyogon Kim


  • M.S in Computer Science, Mar. 2008 – Feb. 2010

Wireless Data Communication Laboratory

Korea University, South Korea

Advisor: Dr. Hyogon Kim


  • Bachelor of Science (B.S) in Computer Science, Mar. 2004 - Feb, 2008

Korea University, South Korea


Contact Information


  • Postal mail

Korea University

School of Information and Communication

Anam-dong 5-1 Sungbuk-gu

Seoul 136-701, South Korea


  • Web: http://widen.korea.ac.kr/wiki
  • Email: jhha85@korea.ac.kr
  • Messenger: bobsang2000@hotmail.com (MSN)
  • Phone: +82-2-3290-3569
  • Mobile: +82-10-2533-7947
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