OFDM Relay Cognitive Radio Multiple Antennas Resource Allocation Full Duplex Spectrum Sensing Synchronization Spectrum Sharing Channel Estimation Interference Cancellation Heterogeneous Networks Stochastic Geometry Bi-directional Energy Harvesting Feedback relay networks FBMC Equalization Duplex TVWS Ultra Low Power interference SC-FDMA CDMA in-band full-duplex system channel capacity Reliability 5G interference suppression HetNet C-V2V health care —Device-to-device (D2D) body area networks UFMC hybrid frame structure antenna arrays 5G mobile communication Location-based Multi-user Receiver QR Factorization FS-NOMA LTE-TDD Resource sharing Power allocation control overhead GFDM cellular radio quality of service amplify and forward communication telecommunication traffic intercarrier interference Metaheuristics mode selection power uncertainty CoMP Zigbee inter user interference WVAN QAM intersymbol interference Handoff Femtocell resource block management Uplink SCMA system Subband filtering Vehicle-to-vehicle communication Time-division duplex Spatial capacity LTE-based V2V OCBT Communication range V2X partial overlap distributed mode resource selection maximum likelihood method non-orthogonal multiple access P-NOMA Dynamic TDD Number of training blocks Waveforms reinforcement learning OTDOA estimated position updating multi-access edge computing - Computation offloading indoor positioning DQN estimated position overlapping NR positioning cross-link interference Vehicular communication user fairness Mode 3 Rat-dependent positioning smart factory RSRP weighting
Status : Presented 
Date : 2011-11 
Title : Spectrum Sharing in Cognitive Radio Networks: Impacts of Interference Power Constraints 
Authors : Hyungjong Kim, Sungsoo Park, Seokwon Lee and Daesik Hong 
Conference : CogART2011 
Abstract : Spectrum sharing is a promising technique to enhance spectrum utilization in cognitive radio environments. Cognitive sharing the spectra of licensed users provides unlicensed users with the opportunity to access rigid spectrum resources without degrading the performance of the licensed users. The result of this simultaneous sharing of limited spectrum resources by licensed and unlicensed users is more efficient spectrum utilization.

Spectrum sharing with licensed users is achieved by allowing unlicensed users to transmit when the interference power constraint at the licensed users is being satisfied. The interference power constraint protects the performance of the licensed users while at the same time determining the performance of the unlicensed users sharing the licensed spectrum. Therefore, the interference power constraint plays an important role in the spectrum sharing environment.

This article provides a guideline for spectrum sharing in the cognitive radio environment. A part of our effort focuses on examining the impact of the interference power constraint and the performance of the unlicensed users under each constraint. We first investigate the representative interference power constraints. Next, we propose a power allocation scheme to satisfy the outage probability of a primary user. The performance comparison is then used to confirm that the proposed scheme not only satisfy the outage probability of primary user, but also is robust to the outdated channel environments. 
URL : http://dl.acm.org/citation.cfm?id=2093297 
Download : http://mirinae.yonsei.ac.kr/?module=file...84e2c4291a 

Hyungjong Kim, Sungsoo Park, Seokwon Lee, and Daesik Hong. 2011. Spectrum sharing in cognitive radio networks: impacts of interference power constraints. In Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management (CogART '11). ACM, New York, NY, USA, , Article 41 , 5 pages. DOI=10.1145/2093256.2093297 http://doi.acm.org/10.1145/2093256.2093297

List of Articles
Status Datesort
6 [Other Conf. Papers] Gosan Noh, Sungmook Lim, Yosub Park, Jihaeng Heo, and Daesik Hong, "Effect of Primary Power Fluctuation on Ergodic Capacity of a Secondary User in a Spectrum Sharing Environment," IEEE ICNC Feb, 2014 file Presented  2014-02 
5 [Other Conf. Papers] Hyungjong Kim, Sungmook Lim, Hano Wang, and Daesik Hong, "Power Allocation and Outage Probability Analysis for Secondary Users in Cognitive Full Duplex Relay Systems", SPAWC12, April 2012 file Presented  2012-06 
» [Other Conf. Papers] Hyungjong Kim, Sungsoo Park, Seokwon Lee, and Daesik Hong, "Spectrum Sharing in Cognitive Radio Networks: Impacts of Interference Power Constraints", CogART2011, Nov. 2011 (Invited Paper) file Presented  2011-11 
3 [IEEE ICC] Jemin Lee, Jeffrey G. Andrews, and Daesik Hong, "The Effect of Interference Cancellation on Spectrum-Sharing Transmission Capacity", IEEE ICC 2011, June 2011 file Presented  2011-06 
2 [IEEE ICC] Jemin Lee, Sungmook Lim, Jeffrey G. Andrews and Daesik Hong, "Achievable Transmission Capacity of Secondary System in Cognitive Radio Networks", IEEE ICC 2010, Dec. 2009 file Presented  2009-12 
1 [IEEE TENCON] Hano Wang, Dongkyu Kim, Gosan Noh, and Daesik Hong, "Throughput Maximization of SINR-based Spectrum Sharing Policy", IEEE TENCON, Nov. 2009 file Presented  2009-11