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Myeongyun Cho, Youngju Kim, Jaekon Lee and Daesik Hong, "A CQI Feedback Reduction Scheme for Multi-User MIMO/OFDMA Systems", PIMRC 2007, Sep. 2007
[IEEE PIMRC]
조회 82106
Status : | Presented |
---|---|
Date : | 2007-09 |
Title : | A CQI Feedback Reduction Scheme for Multi-User MIMO/OFDMA Systems |
Authors : | Myeongyun Cho, Youngju Kim, Jaekon Lee and Daesik Hong |
Conference : | IEEE International Symposium on Personal, Indoor and Mobile Radio Communications |
Abstract : | An opportunistic scheduling is adopted to improve the capacity of the system by exploiting the multiuser diversity of multiuser MIMO (MU-MIMO) systems. However, it requires a large amount of feedback carrying the channel quality information (CQI) of each user to the transmitter. The considered Per User Unitary and Rate Control (PU2RC) needs to feedback the preferred precoding index and its CQIs, and it has a defect in scheduling the streams for the grouped user. In order to overcome these drawbacks, a novel feedback reduction scheme is proposed and is modified for OFDMA systems in this paper. It employs transmitter controlled precoding and opportunistic feedback (TCP-OFB) in conjunction with frequency scheduling. The simulation results demonstrate that TCP-OFB/OFDMA shows comparable performance to PU2RC while it only requires far reduced feedback load. |
URL : | http://ieeexplore.ieee.org/xpl/articleDe...MA+Systems |
Myeon-gyun Cho; Youngju Kim; Jaekon Lee; Daesik Hong; , "A CQI Feedback Reduction Scheme for Multi-User MIMO/OFDMA Systems,"Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on , vol., no., pp.1-7, 3-7 Sept. 2007
doi: 10.1109/PIMRC.2007.4394344
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4394344&isnumber=4393983
doi: 10.1109/PIMRC.2007.4394344
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4394344&isnumber=4393983
Related Publications
- International Journals 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
- 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 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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