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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

[IEEE Trans. Wireless Commun.]
조회 47258
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
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10 [IEEE Trans. Wireless Commun.] Hyejin Kim, Yosub Park, Jintae Kim and Daesik Hong, "A Low-Complex SVD-Based F-OFDM," in IEEE Transactions on Wireless Communications, Feb. 2020 Published  2019-10 
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» [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 
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5 [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 
4 [IEEE Trans. Wireless Commun.] Sungeun Lee, Kyungchul Kwak, Jihyung Kim and Daesik Hong, "Channel estimation approach with variable pilot density to mitigate interference over time-selective cellular OFDM systems" IEEE Trans. Wireless Comm., Dec 2007 file Published  2007-12 
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2 [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 
1 [IEEE Trans. Wireless Commun.] Jeongho Park, Jihyung Kim, Myonghee Park, Kyunbyoung Ko, Changeon Kang and Daesik Hong, "Performance analysis of channel estimation for OFDM systems with residual timing offset", IEEE Trans. WComm., Jul 2006 Published  2006-07 
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