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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
[IEEE Trans. Veh. Technol.]
조회 72216
Status : | Published |
---|---|
Date : | 2008-09 |
Title : | Simple Dynamic Subcarrier Allocation with CQI Feedback Reduction for OFDMA Systems |
Authors : | Choongchae Woo, Eunsung Oh, Seungyoup Han and Daesik Hong |
Journal : | IEEE Transactions on Vehicular Technology |
Abstract : | The focus of this paper is a proposal for a computationally efficient dynamic subcarrier allocation (DSA) algorithm for orthogonal frequency-division multiple access (OFDMA) systems. The proposed DSA algorithm considerably reduces the computational complexity and the amount of channel quality information (CQI) compared to amplitude-craving greedy (ACG) algorithms, which use full CQI. At the same time, the performance of the proposed algorithm closely approaches that achieved by ACG algorithms. Moreover, the authors present a new bandwidth-assignment algorithm produced by modifying bandwidth assignment based on the signal-to-noise ratio (BABS). This modified BABS algorithm enables the proposed DSA algorithm to produce a strong outage performance gain over the conventional scheme. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4439211 |
Choongchae Woo; Eunsung Oh; Daesik Hong; , "Simple Dynamic Subcarrier Allocation With CQI Feedback Reduction for OFDMA Systems," Vehicular Technology, IEEE Transactions on , vol.57, no.5, pp.3299-3303, Sept. 2008
doi:
10.1109/TVT.2008.917219
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4439211&isnumber=4626110
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