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 FBMC relay networks Equalization Duplex CDMA Ultra Low Power in-band full-duplex system SC-FDMA TVWS Reliability interference channel capacity 5G interference suppression HetNet C-V2V 5G mobile communication body area networks health care resource block management Zigbee UFMC frame structure antenna arrays QR Factorization Multi-user Receiver Mode 3 Metaheuristics FS-NOMA —Device-to-device (D2D) LTE-TDD OTDOA System level simulation inter user interference intercarrier interference telecommunication traffic mode selection GFDM user fairness Empty cell cellular radio quality of service Femtocell intersymbol interference QAM Handoff CoMP amplify and forward communication power uncertainty WVAN Capacity OCBT Traffic Number of training blocks Time-division duplex Subband filtering Spatial capacity Vehicle-to-vehicle communication Waveforms P-NOMA Uplink SCMA system non-orthogonal multiple access distributed mode Vehicular communication partial overlap V2X LTE-based V2V Communication range estimated position overlapping NR positioning Rat-dependent positioning estimated position updating Location-based Resource sharing Power allocation smart factory indoor positioning maximum likelihood method resource selection Dynamic TDD control overhead RSRP weighting hybrid cross-link interference
Status : Presented 
Date : 2013-10 
Title : Increasing the Life-time of 802.15.4-based Wireless Sensor Networks 
Authors : Seokwon Lee, Sungwoo Weon, Sooyong Choi, Jang-won Lee, Changsoon Park, Youngsoo Kim, Young-jun Hong, and Daesik Hong 
Conference : 8th International Conference on Body Area Networks (BODYNETS 2013) 
Abstract : This paper investigates a dynamic spectrum access (DSA) scheme for low power wireless sensor networks (WSN) in an open spectrum where multiple systems coexist and interfere with each other. Low transmission power and a simple communication protocol are significant obstacles to the operation of low power WSN in the open spectrum. As a result, available spectrum is more scarce for a low power WSN than for the other coexisting systems. To address this, we are proposing a new DSA scheme with an energy efficient channel switching criterion that can improve the expected throughput by chasing the low interference channel. OPNET-based system level simulation results, designed under the framework of ZigBee and IEEE 802.15.4, demonstrates that the proposed DSA scheme shows improved energy efficiency and throughput compared to conventional ZigBee systems. 
Download : http://mirinae.yonsei.ac.kr/?module=file...e1585b443a 

LEE, Seokwon, et al. Increasing the life-time of 802.15. 4-based wireless sensor networks. In: Proceedings of the 8th International Conference on Body Area Networks. ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering), 2013. p. 225-228.

List of Articles
No.
Statussort Date
21 [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 
» [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 
19 [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 
18 [IEEE VTC] Jihaeng Heo, Gosan Noh, Sungsoo Park, Eunsun Kim, and Daesik Hong,"Directional Information based Mobility Procedure for Throughput Enhancement in Mobile TVWS",VTC2013, Sep.2013 file Presented  2013-09 
17 [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 
16 [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 
15 [IEEE PIMRC] Sungsoo Park, Jihaeng Heo, Beomju Kim, Wonsuk Chung, Hano Wang, and Daesik Hong,"Optimal Mode Selection for Cognitive Radio Sensor Networks with RF Energy Harvesting", IEEE PIMRC, Sep. 2012 file Presented  2012-09 
14 [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 
13 [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 
12 [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 
11 [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 
10 [IEEE MILCOM] Jihaeng Heo, Gosan Noh, Sungmook Lim, and Daesik Hong, "Mobility Support in TVWS with Multiple Geo-Location Capability", MILCOM 2011, July 2011 file Presented  2011-07 
9 [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 
8 [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 
7 [Other Conf. Papers] Hyungjong Kim, Hano Wang, Jemin Lee, Sungsoo Park, Desik Hong, "Outage Probability of Cognitive Amplify-and-Forward Relay Networks under Interference Constraints", APCC 2010, Oct. 2010 file Presented  2010-10 
6 [ICEIC] Hano Wang, Jemin Lee and Daesik Hong, "Interference Reduction through Multi-hop Transmission in Cognitive Radios", ICEIC 2010, June 2010 file Presented  2010-06 
5 [IEEE WCNC] Seungjin You, Gosan Noh, Jemin Lee, Hano Wang, and Daesik Hong, "Joint Beamforming and Power Control Algorithm for Cognitive Radio Network with the Multi-antenna Base Station", IEEE WCNC 2010, Dec. 2009 file Presented  2009-12 
4 [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 
3 [ITC-CSCC] Jemin Lee, Gosan Noh, Hano Wang, Sungmook Lim, "Performance Analysis of Cognitive Relay Networks with Simple Relay Selection", ITC-CSCC, July 2009 Presented  2009-07 
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