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 : 2011-11 
Title : Energy-Efficient Opportunistic Spectrum Access in Cognitive Radio Networks with Energy Harvesting 
Authors : Sungsoo Park, Seokwon Lee, Beomju Kim, Daesik Hong, Jemin Lee 
Conference : CogART2011 
Abstract : In cognitive radio networks, secondary user performs spectrum sensing to detect primary user activities and to access the channel opportunistically. We investigate the problem of developing energy efficient opportunistic spectrum access strategy for a secondary user with energy harvesting capability. We formulate the problem to determine the optimal sensing and access policy as a partially observable Markov decision process (POMDP). Since obtaining the optimal policy is computationally prohibitive, we provide a suboptimal myopic policy that maximizes expected immediate throughput instead of expected total throughput. Simulation results demonstrate that the proposed myopic policy yields improved throughput compared to a random channel selection strategy. 
URL : http://dl.acm.org/citation.cfm?id=2093318 
Download : http://mirinae.yonsei.ac.kr/?module=file...04daa17d0b 

Sungsoo Park, Seokwon Lee, Beomju Kim, Daesik Hong, and Jemin Lee. 2011. Energy-efficient opportunistic spectrum access in cognitive radio networks with energy harvesting. InProceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management (CogART '11). ACM, New York, NY, USA, , Article 62 , 5 pages. DOI=10.1145/2093256.2093318 http://doi.acm.org/10.1145/2093256.2093318

List of Articles
No.
Status Datesort
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 
» [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 
1 [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