OFDM Multiple Antennas Cognitive Radio Relay CDMA Synchronization Channel Estimation Spectrum Sharing Interference Cancellation Neural Networks Spectrum Sensing Full duplex Resource Allocation Stochastic Geometry Equalizer Feedback Bi-Directional Energy Harvesting Femtocell Heterogeneous Networks Device-to-Device (D2D) Cell Search FBMC HetNet Idle cells Ultra-dense small cell networks Spectral efficiency SINR mismatch problem automatic repeat request (ARQ) in-band full-duplex system Two-way communications transmission capacity (TC) Correlated MIMO sensing duration self-interference cancellation Simultaneous Sensing and Transmission full-duplex cellular multi-spectral beamforming UWB achievable sum rate outage probability Cognitive relay networks selection diversity full-duplex relay Latency Vehicular and wireless technologies Asynchronized system Cross-link interference Cellular networks coexistence Channel estimation error Ultra-dense small cell Shortened TTI UL grant free NOMA mode selection Bi-directional full-duplex OQAM Link adaptation Iterative decoder LTE-TDD Dynamic TDD bursty traffic model CP-OFDM MIMO singular value decomposition Time spreading K-S statistics interference coordination Vehicle-to-vehicle communication eigen decomposition 5G networks GFDM MU-MIMO TS-W-OFDM prototype filter pilot signal Windowing time-frequency efficiency Long Term Evolution-Advanced Aggregate interference LTE-based V2V Vehicle-to-Vehicle Coexistence scenarios resource size control interference to noise ratio interference management mixed numerology Cooperative systems Resource management link reliability Reliability non-orthogonal multiple access full-spreading NOMA massive connectivity Complexity Filtered OFDM C-V2V tabu-search Singular Vale Decomposition
Status : Published 
Date : 2014-01 
Title : Simultaneous Sensing and Transmission in Cognitive Radio 
Authors : Jihaeng Heo, Hyungsik Ju, Sungsoo Park, Eunsun Kim, and Daesik Hong 
Journal : IEEE Transactions on Wireless Communications 
Abstract : In cognitive radio, spectrum sensing is used to find the white spectrum or protect the primary user (PU) from interference caused by the secondary user (SU). There are two conventional spectrum sensing approaches: quiet and active. However, these conventional approaches have several problems. In quiet sensing, the quiet period degrades the SU capacity. With active sensing, the SU capacity is also degraded by the need for additional resource consumption and the mismatch in feedback information.
In order to mitigate these problems, the structure of simultaneous PU sensing and data transmission is introduced. This structure is equipped with antenna isolation and self-interference cancellation in which the communication and the sensing radios are already assumed to be significantly isolated. This approach is designed so that the SU transmitter can sense PU signals and transmit data signals at the same time by dividing its spatial resources. Expanding on this work, we propose a concept of ”TranSensing” which adaptively uses spatial resource according to the surrounding environments. To effectively use TranSensing, we propose a two-stage algorithm (TSA) which consists of correlation based antenna partitioning and conditional sensing duration control designed to balance SU capacity and computational complexity. Finally, the impact of residual interference on TranSensing is investigated.
Simulation results show that TranSensing with TSA enhances the SU capacity over the conventional quiet or active sensing methods in all PU signal-to-noise ratio ranges. In addition, we show the residual interference criterion for TranSensing. 
URL : http://ieeexplore.ieee.org/xpl/articleDe...unications 
Download : http://mirinae.yonsei.ac.kr/?module=file...770308d475 
Jihaeng Heo; Hyungsik Ju; Sungsoo Park; Eunsun Kim; Daesik Hong, "Simultaneous Sensing and Transmission in Cognitive Radio," Wireless Communications, IEEE Transactions on , vol.13, no.4, pp.1948,1959, April 2014
doi: 10.1109/TWC.2014.030614.130532
keywords: {cognitive radio;interference suppression;spread spectrum communication;PU signals;SU transmitter;TranSensing;antenna isolation;cognitive radio;secondary user;self-interference cancellation;spectrum sensing;two-stage algorithm;white spectrum;Cognitive radio;Data communication;Interference;Sensors;Transmitting antennas;Cognitive radio;correlated MIMO;simultaneous sensing and transmission;spectrum sensing},
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6775369&isnumber=6803026
List of Articles
No.
Status Datesort
10 [IEEE Trans. Wireless Commun.] Sungsoo Park, and Daesik Hong, "Achievable Throughput of Energy Harvesting Cognitive Radio Networks," IEEE Trans. Wireless Commun., Feb. 2014 file Published  2014-02 
9 [IEEE Trans. Wireless Commun.] Wonsuk Chung, Sungsoo Park, Sungmook Lim, and Daesik Hong, "Spectrum Sensing Optimization for Energy-Harvesting Cognitive Radio Systems", IEEE Trans. on Wireless Comm., Jan. 2014 file Published  2014-01 
» [IEEE Trans. Wireless Commun.] Jihaeng Heo, Hyungsik Ju, Sungsoo Park, Eunsun Kim, and Daesik Hong, "Simultaneous Sensing and Transmission in Cognitive Radio," IEEE Transactions on Wireless Communications, Jan. 2014 file Published  2014-01 
7 [IEEE Trans. Wireless Commun.] Sungsoo Park and Daesik Hong, "Optimal Spectrum Access for Energy Harvesting Cognitive Radio Networks," IEEE Transactions on Wireless Communications, Dec. 2013 file Published  2013-12 
6 [IEEE Trans. Wireless Commun.] Sungsoo Park, Hyungjong Kim, and Daesik Hong, "Cognitive Radio Networks with Energy Harvesting," IEEE Trans. on Wireless Comm., Mar. 2013 file Published  2013-03 
5 [IEEE Trans. Veh. Technol.] Gosan Noh, Hano Wang,Junho Jo, Byoung-Hoon Kim, and Daesik Hong,"Reporting Order Control for Fast Primary Detection in Cooperative Spectrum Sensing" IEEE Trans. Veh. Technol., Oct. 2011 file Published  2011-10 
4 [IEEE Trans. Veh. Technol.] Gosan Noh, Jemin Lee, Hano Wang, Sungtae Kim, Sooyong Choi, and Daesik Hong, "Throughput Analysis and Optimization of Sensing-Based Cognitive Radio Systems with Markovian Traffic," IEEE Trans. Veh. Technol., Oct. 2010 file Published  2010-10 
3 [Other Journals] Hano Wang, Gosan Noh, Dongkyu Kim, Sungtae Kim and Daesik Hong, "Advanced Sensing Techniques of Energy Detection in Cognitive Radios", Journal of Comm. and Networks, Feb 2010 Published  2010-02 
2 [IEEE Trans. Wireless Commun.] Jemin Lee, Hano Wang, Sungtae Kim, and Daesik Hong, "Sensing Threshold Control for Fair Coexistence of Heterogeneous Systems in Open Spectrum" IEEE Trans. Wireless Comm., Dec 2009 file Published  2009-12 
1 [IEEE Signal Process. Lett.] Sungtae Kim, Jemin Lee, Hano Wang, Daesik Hong "Sensing Performance of Energy Detector with Correlated Multiple Antennas" IEEE SP Letters., Aug 2009 file Published  2009-08