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Seokjung Kim, Sungsoo Park, Hyunkee Min, and Daesik Hong, "Average SNR and Ergodic Capacity of Reactive DF Relaying System with Outdated Channel State Information", IEEE ICC 2011, June 2011
[IEEE ICC]
조회 91197
Status : | Presented |
---|---|
Date : | 2011-06 |
Title : | Average SNR and Ergodic Capacity of Reactive DF Relaying System with Outdated Channel State Information |
Authors : | Seokjung Kim, Sungsoo Park, Hyunkee Min, and Daesik Hong |
Conference : | IEEE ICC 2011 |
Abstract : | In this paper, we investigate the effects of outdated channel state information (CSI) in opportunistic relaying systems on the ergodic capacity. The CSI in the data transmission instant may be different from that used in the relay selection instant due to channel variation. When the CSI in the relay-destination link is outdated, the average signal-to-noise ratio (SNR) and the ergodic capacity of the reactive decode and forward (DF) relaying system are derived. In addition, the effective ergodic capacity which is the spectral efficiency of the successful transmissions excluding the outage events is also derived. The numerical results show that if the CSI in the relay-destination link is outdated, the loss in the ergodic capacity is remarkable compared to the perfect CSI case. In addition, the level of the inaccuracy of the CSI affects the performance of the ergodic capacity in the reactive DF relaying system. In other words, the capacity degradation occurs if the CSI inaccuracy becomes much larger. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5963059 |
Download : | http://mirinae.yonsei.ac.kr/?module=file...37d2b1b87f |
Seokjung Kim; Sungsoo Park; Hyunkee Min; Daesik Hong; , "Average SNR and Ergodic Capacity of Reactive DF Relaying System with Outdated Channel State Information," Communications (ICC), 2011 IEEE International Conference on , vol., no., pp.1-5, 5-9 June 2011
doi: 10.1109/icc.2011.5963059
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5963059&isnumber=5962409
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