OFDM Multiple Antennas Cognitive Radio Relay Synchronization CDMA Channel Estimation Spectrum Sharing Interference Cancellation Spectrum Sensing Full duplex Neural Networks Resource Allocation Stochastic Geometry Equalizer Bi-Directional Feedback Heterogeneous Networks Energy Harvesting Femtocell Device-to-Device (D2D) Idle cells FBMC Ultra-dense small cell networks Cell Search Spectral efficiency SINR mismatch problem Cross-link interference HetNet Dynamic TDD self-interference cancellation full-duplex relay in-band full-duplex system automatic repeat request (ARQ) transmission capacity (TC) full-duplex cellular Two-way communications sensing duration selection diversity GFDM interference mitigation Correlated MIMO mode selection multi-spectral outage probability achievable sum rate Cognitive relay networks Vehicular and wireless technologies bursty traffic model UL grant free NOMA Asynchronized system Reliability Latency Cellular networks LTE-TDD Iterative decoder Bi-directional full-duplex OQAM UWB MU-MIMO coexistence Link adaptation beamforming Simultaneous Sensing and Transmission CP-OFDM Long Term Evolution-Advanced Aggregate interference singular value decomposition MIMO 5G networks time-frequency efficiency K-S statistics Time spreading Windowing Vehicle-to-vehicle communication LTE-based V2V interference coordination prototype filter pilot signal TS-W-OFDM eigen decomposition link reliability interference to noise ratio tabu-search resource size control C-V2V Coexistence scenarios interference management Resource management mixed numerology Vehicle-to-Vehicle massive connectivity Complexity non-orthogonal multiple access full-spreading NOMA Filtered OFDM Singular Vale Decomposition 5G flexible duplex Cooperative systems
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