OFDM Relay Cognitive Radio Multiple Antennas Resource Allocation Full Duplex Spectrum Sensing Synchronization Spectrum Sharing Interference Cancellation Channel Estimation Feedback Stochastic Geometry Bi-directional Energy Harvesting Heterogeneous Networks FBMC HetNet Equalization relay networks Ultra Low Power TVWS MIMO interference SC-FDMA CDMA Duplex channel capacity interference suppression 5G Reliability C-V2V in-band full-duplex system OCBT CLI body area networks 5G mobile communication antenna arrays NR positioning health care Resource sharing Location-based LTE-TDD FS-NOMA Power allocation OTDOA hybrid control overhead estimated position overlapping resource block management amplify and forward communication power uncertainty CoMP quality of service cellular radio Rat-dependent positioning telecommunication traffic Handoff Femtocell inter user interference UFMC mode selection GFDM QAM Zigbee frame structure Vehicular communication Vehicle-to-vehicle communication non-orthogonal multiple access QR Factorization Spatial capacity LTE-based V2V Number of training blocks Communication range user fairness Mode 3 resource selection distributed mode maximum likelihood method Metaheuristics cross-link interference Dynamic TDD Uplink SCMA system V2X DQN estimated position updating —Device-to-device (D2D) spectrum partitioning dynamic HetNet indoor positioning D-TDD - Computation offloading multi-access edge computing P-NOMA partial overlap Subband filtering Multi-user Receiver reinforcement learning RSRP weighting smart factory
Status : Presented 
Date : 2008-05 
Title : A New Spectrum Sensing Scheme using Cyclic Prefix for OFDM-Based Cognitive Radio Systems 
Authors : Gosan Noh, Jemin Lee, Hano Wang, Seungjin You and Daesik Hong 
Conference : IEEE Conference Vehicular Technology 
Abstract : In cognitive radio systems, spectrum sensing schemes for detecting primary users in a licensed spectrum are essential to utilize the spectrum effectively. As a matter of fact, sensing accuracy is regarded as the most important factor for spectrum sensing with the intension of sufficient protection for the primary user. In this paper, we propose a new spectrum sensing scheme which exploits the cyclic prefix of an orthogonal frequency-division multiplexing (OFDM) symbol as well as idle period containing no information symbols. Redundant information in the cyclic prefix enables spectrum sensing to be more accurate and efficient. With analysis and simulation, we show that the proposed scheme can improve sensing accuracy and increase system throughput compared with the conventional system which uses only idle period. 
URL : http://ieeexplore.ieee.org/xpl/articleDe...io+Systems 
Download : http://mirinae.yonsei.ac.kr/?module=file...e8080422bf 
Gosan Noh; Jemin Lee; Hano Wang; Seungjin You; Daesik Hong; , "A New Spectrum Sensing Scheme using Cyclic Prefix for OFDM-Based Cognitive Radio Systems," Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE , vol., no., pp.1891-1895, 11-14 May 2008
doi: 10.1109/VETECS.2008.429
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4525985&isnumber=4525556
List of Articles
No.
Statussort Date
9 [Other Conf. Papers] Seokwon Lee, Sungwoo Weon, Sooyong Choi, Jang-won Lee, Changsoon Park, Youngsoo Kim, Young-jun Hong, and Daesik Hong, "Increasing the Life-time of 802.15.4-based Wireless Sensor Networks," BODYNETS 2013, Oct. 2013 file Presented  2013-10 
8 [IEEE VTC] Wonsuk Chung, Sungsoo Park, Sungmook Lim, and Daesik Hong, "Opimal Transmit Power Control for Energy-Harvesting Cognitive Radio System," IEEE VTC2013 Fall, Sep.2013 file Presented  2013-09 
7 [ICEIC] Jihaeng Heo, Hyungsik Ju, Sungsoo Park, and Daesik Hong, "Method for Simultaneous Sensing and Data Transmission in CR Environments," ICEIC2013, Jan. 2013 file Presented  2013-01 
6 [IEEE MILCOM] Seokwon Lee, Sungsoo Park, Gosan Noh, Yosub Park and Daesik Hong, "Energy-Efficient Spectrum Access for Ultra Low Power Sensor Networks", IEEE MILCOM, October 2012 file Presented  2012-10 
5 [IEEE VTC] Gosan Noh, Sungmook Lim, Seokwon Lee, and Daesik Hong,"Goodness-of-Fit-based Malicious User Detection in Cooperative Spectrum Sensing", VTC 2012 Fall, Sep. 2012 file Presented  2012-09 
4 [Other Conf. Papers] Sungsoo Park, Seokwon Lee, Beomju Kim, Daesik Hong, Jemin Lee, "Energy-Efficient Opportunistic Spectrum Access in Cognitive Radio Networks with Energy Harvesting", CogART2011, Nov. 2011 (Invited Paper) file Presented  2011-11 
3 [Other Conf. Papers] Gosan Noh, Hano Wang, and Daesik Hong, "Optimal Channel Allocation for Sensing-based Cognitive Radio Systems in Multichannel Multiuser Environment", ConTEL 2011, June 2011 file Presented  2011-06 
2 [IEEE VTC] Gosan Noh, Jemin Lee, and Daesik Hong, "Stochastic Multichannel Sensing for Cognitive Radio Systems: Optimal Channel Selection for Sensing with Interference Constraints", IEEE VTC, Sep. 2009 file Presented  2009-09 
» [IEEE VTC] Gosan Noh, Jemin Lee, Hano Wang, Seungjin You and Daesik Hong, "A New Spectrum Sensing Scheme using Cyclic Prefix for OFDM-Based Cognitive Radio Systems", IEEE VTC, May 2008 file Presented  2008-05