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 [IEEE VTC] Seokwon Lee, Seungyoup Han, Hyungsik Ju, Jemin Lee, and Daesik Hong, "Group-Wise Distributed Space-Time-Frequency Coded OFDM over Asymmetric Frequency-Selective AF Relay Channels", IEEE VTC 2011, May 2011 file Presented  2011-05 
8 [IEEE VTC] Byungjoon Park, Hyunsoo Cheon, Changeon Kang and Daesik Hong, "A Simple Preamble for OFDM Timing Offset Estimation", IEEE VTC, Sep. 2002 file Presented  2002-09 
7 [IEEE VTC] Hyusoo Cheon, Byungjoon Park, Changeon Kang and Daesik Hong, "The Performance Impairment due to the Imperfect Channel Information in OFDM-based WLAN", IEEE VTC, May 2002 Presented  2002-05 
6 [IEEE VTC] Jaehee Cho, Cheolwook Yoon, Namshin Cho, Heeyoung Jun, and Dasik Hong , "Optimal weighting for ML decoding of convolution code in COFDM systems", IEEE VTC, May 2001 Presented  2001-05 
» [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 
4 [IEEE VTC] Hyunsoo Cheon, Byungjoon Park and Daesik Hong, "Adaptive Multicarrier System  with Reduced Feedback Information in Wideband Radio Channels", IEEE VTC, Sept. 1999 Presented  1999-09 
3 [IEEE VTC] Taehoon Kwon, Hyungjoon Song and Daesik Hong, "Robust Channel Estimation in Multicell OFDM(A) Downlink Systems With Propagation Delay", IEEE VTC 2007, April 2007 file Presented  2007-04 
2 [IEEE VTC] Hyonseok Kim, Hyunkee Min, Hanho Wang, Youngju Kim and Daesik Hong, "Asymmetric Pilot Subcarrier Allocation for OFDMA-Based Regenerative Dual-Hop Links", IEEE VTC, April 2007 file Presented  2007-04 
1 [IEEE VTC] Seungyoup Han, Sungtae Kim, Eunsung Oh and Daesik Hong, "Adaptive Resource Allocation with Rate Proportionality Tracking in OFDMA Systems", IEEE VTC, April 2007 file Presented  2007-04