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 Filtered 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 Resource management Coexistence scenarios resource size control interference to noise ratio interference management mixed numerology Reliability Cooperative systems link reliability C-V2V non-orthogonal multiple access full-spreading NOMA massive connectivity Complexity CP-OFDM Vehicle-to-Vehicle Singular Vale Decomposition tabu-search
Status : Published 
Date : 2013-11 
Title : Optimal Tone Space Selection Scheme for OFDMA-VTS in Carrier Aggregation 
Authors : Sungmook Lim, Gosan Noh, Hyungjong Kim, and Daesik Hong 
Journal : IEEE Transactions on Wireless Communications 
Abstract : In this paper, we propose an optimal tone space selection scheme for orthogonal frequency division multiple access with variable tone spaces (OFDMA-VTS) in carrier aggregation based on user-specific channels. We begin by analyzing intersymbol interference (ISI) and inter-carrier interference (ICI) in non-contiguous carrier aggregation, which differ according to the delay and Doppler spreads associated with each user, as well as the tone space that each user utilizes. Based on that, we propose an optimal tone space selection scheme as a way to minimize both ISI and ICI. We also derive an upper bound on OFDMA-VTS capacity when it is applied to the proposed scheme. Furthermore, we investigate the effect of inter-user interference (IUI) in contiguous carrier aggregation and show that the proposed scheme can be applied to OFDMA-VTS in contiguous carrier aggregation as a suboptimal solution. Numerical results demonstrate that the proposed scheme maximizes OFDMA-VTS capacity by minimizing the total ISI and ICI interference, thereby enhancing the system capacity over what is possible with conventional OFDMA. 
URL : http://ieeexplore.ieee.org/xpl/articleDe...er=6620922 
Download : http://mirinae.yonsei.ac.kr/?module=file...46455ff329 
Lim, Sungmook; Noh, Gosan; Kim, Hyungjong; Hong, Daesik, "Optimal Tone Space Selection Scheme for OFDMA-VTS in Carrier Aggregation," Wireless Communications, IEEE Transactions on , vol.12, no.11, pp.5679,5691, November 2013
doi: 10.1109/TWC.2013.092513.121999
keywords: {Bandwidth;Delays;Doppler effect;Interference;OFDM;Radio spectrum management;Time-domain analysis;OFDMA-VTS;carrier aggregation;system capacity;user-specific channel},
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6620922&isnumber=6674971
List of Articles
No.
Status Datesort
» [IEEE Trans. Wireless Commun.] Sungmook Lim, Gosan Noh, Hyungjong Kim, and Daesik Hong, "Optimal Tone Space Selection Scheme for OFDMA-VTS in Carrier Aggregation," IEEE Trans. Wireless Commun., Nov. 2013 file Published  2013-11 
5 [IEEE Trans. Wireless Commun.] Sungmook Lim, Hano Wang, Hyungjong Kim, and Daesik Hong,"Mean Value-based Power Allocation without Instantaneous CSI Feedback in Spectrum Sharing Systems" IEEE Trans. Wireless Comm., March 2012 file Published  2012-03 
4 [IEEE Trans. Veh. Technol.] Hyungjoon Song, Woohyun Seo, and Daesik Hong "Compressive Feedback Based on Sparse Approximation for Multiuser MIMO Systems," IEEE Trans. Veh. Technol., Feb 2010 file Published  2010-02 
3 [IEEE Trans. Veh. Technol.] Choongchae Woo, Eunsung Oh, Seungyoup Han and Daesik Hong, "Simple Dynamic Subcarrier Allocation with CQI Feedback Reduction for OFDMA Systems", IEEE Trans. Veh. Technol., Sep 2008 Published  2008-09 
2 [IEEE Trans. Wireless Commun.] Woohyun Seo, Myeongyon Cho and Daesik Hong, "A New Full-band Feedback Scheme Using the Adaptive Grouping Method in OFDMA Systems", IEEE Trans. Wireless Comm., Jun 2008 file Published  2008-06 
1 [IEEE Trans. Wireless Commun.] Myeongyun. Cho, Woohyun Seo and Daesik Hong, "A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems", IEEE Trans. Wireless Comm., Jan 2007 Published  2007-01