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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

[IEEE Trans. Wireless Commun.]
조회 65138
Status : Published 
Date : 2012-03 
Title : Mean Value-Based Power Allocation without Instantaneous CSI Feedback in Spectrum Sharing Systems 
Authors : Sungmook Lim, Hano Wang, Hyungjong Kim and Daesik Hong 
Journal : IEEE Transactions on Wireless Communications 
Abstract : In this paper, we investigate a power allocation method without feedback of the instantaneous channel gain between a secondary transmitter (ST) and a primary receiver (PR) in spectrum sharing systems where channel information between the ST and the PR is outdated. We propose a mean value-based power allocation scheme (MVPA), which uses only the mean value of the channel gain of the ST-PR link. The proposed MVPA satisfies the interference outage constraint at the PR without feedback of the instantaneous channel information, which enables MVPA to reduce feedback burden. We also derive the ergodic capacity based on MVPA in closed-form and compare the ergodic capacity based on MVPA with that of a power allocation method using the outdated channel information instantaneously. Through the comparison, we convincingly demonstrate that MVPA without feedback of instantaneous channel information provides more reliable and superior capacity performance by reducing capacity loss from which the power allocation method using the outdated channel information severely suffers. 
URL : http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6151772 
Download : http://mirinae.yonsei.ac.kr/?module=file...26754847e2 

Sungmook Lim; Hano Wang; Hyungjong Kim; Daesik Hong; , "Mean Value-Based Power Allocation without Instantaneous CSI Feedback in Spectrum Sharing Systems," Wireless Communications, IEEE Transactions on , vol.11, no.3, pp.874-879, March 2012
doi: 10.1109/TWC.2012.020712.102197
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6151772&isnumber=6165622

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4 [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 
3 [IEEE Trans. Wireless Commun.] Hyungjong Kim, Sungmook Lim, Hano Wang and Daesik Hong, "Optimal Power Allocation and Outage Analysis for Cognitive Full Duplex Relay Systems", IEEE Trans. Wireless Comm., Oct. 2012 file Published  2012-10 
» [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 
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 
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