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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 46505
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
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
Related Publications
- International Journals 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
- International Conference Hyunsoo Cheon, Byungjoon Park and Daesik Hong, "Adaptive Multicarrier System with Reduced Feedback Information in Wideband Radio Channels", IEEE VTC, Sept. 1999
- International Conference Myeongyun Cho, Youngju Kim, Jaekon Lee and Daesik Hong, "A CQI Feedback Reduction Scheme for Multi-User MIMO/OFDMA Systems", PIMRC 2007, Sep. 2007
- International Journals 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
- International Journals 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
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