Hyoil Kim

Research Interests

Wireless networks: Cognitive Radios (CRs), Dynamic Spectrum Access (DSA); emphasis on design of protocols and algorithms in PHY and MAC layers.

Detailed research area includes:

• Spectrum sensing issues in CR/DSA networks, such as
  • PHY-layer signal detection,
  • MAC-layer sensing scheduling mechanisms,
  • MAC-layer collaborative spectrum sensing
• Efficient spectrum opportunity reuse via resource allocation/management in CR/DSA networks
  • Optimal user control at commercial CR networks,
  • Asymmetric resource allocation in cellular CR networks for multi-scale primary protection

Publications

Journal Articles

[J1]	Hyoil Kim and Kang G. Shin. Efficient Discovery of Spectrum Opportunities with MAC-Layer Sensing in Cognitive Radio Networks, IEEE Transactions on Mobile Computing (IEEE T-MC), Vol. 7, No. 5, pages: 533-545, May, 2008. PDF.
[J2]	Chun-Ting Chou, Sai Shankar N, Hyoil Kim and Kang G. Shin, What and How Much to Gain by Spectrum Agility?, IEEE Journal on Selected Areas in Communications (IEEE J-SAC), Vol. 25, No. 3, pages: 576-588, April, 2007. PDF.

International Conferences

[C1]	Hyoil Kim and Kang G. Shin. Optimal Admission and Eviction Control of Secondary Users at Cognitive Radio HotSpots? , in the Sixth Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (IEEE SECON), June 2009. (acceptance ratio: 81/431=18.8%) PDF.
[C2]	Hyoil Kim and Kang G. Shin. Fast Discovery of Spectrum Opportunities in Cognitive Radio Networks, in Proceedings of the 3rd IEEE Symposia on New Frontiers in Dynamic Spectrum Access Networks (IEEE DySPAN), pages: 1-12, October, 2008. (acceptance ratio: 54/202=26.7%) PDF PPT.
[C3]	Hyoil Kim and Kang G. Shin. In-band Spectrum Sensing in Cognitive Radio Networks: Energy Detection or Feature Detection?, in Proceedings of the 14th Annual International Conference on Mobile Computing and Networking (ACM MobiCom), pages: 14-25, September, 2008. (acceptance ratio: 31/264=11.7%) PDF PPT.
[C4]	Hyoil Kim, Carlos Cordeiro, Kiran Challapali and Kang G. Shin, An Experimental Approach to Spectrum Sensing in Cognitive Radio Networks with Off-the-Shelf IEEE 802.11 Devices (invited paper), 1st IEEE Workshop on Cognitive Radio Networks, in conjunction with 4th IEEE Consumer Communications and Networking Conference (IEEE CCNC), pages:1154-1158, January, 2007. PDF.

Technical Reports

[T1]	Hyoil Kim and Kang G. Shin. Adaptive MAC-layer Sensing of Spectrum Availability in Cognitive Radio Networks, Technical Report, CSE-TR-518-06, University of Michigan, 2006. PDF.
[T2]	Chun-Ting Chou, Hyoil Kim, Kang G. Shin and Sai Shankar N, What and How Much to Gain by Spectral Agility?, Technical Report, CSE-TR-494-04, University of Michigan, 2004. PDF.

Resume/CV

* Resume: PDF

* Curriculum Vita: PDF

Contact

E-mail: hyoilkim@umich.edu

CP: 734-709-5293

Address: 4944 CSE, 2260 Hayward St, Ann Arbor MI 48109, U.S.A.

-- Main.hyoilkim - 10 Mar 2007