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Seungyoup Han, Seongwoo Ahn, Eunsung Oh, and Daesik Hong, "Effect of Channel Estimation Error on BER performance in Cooperative Transmission", IEEE Trans. Veh. Technol., May 2009
[IEEE Trans. Veh. Technol.]
조회 78984
Status : | Published |
---|---|
Date : | 2009-05 |
Title : | Effect of Channel Estimation Error on BER performance in Cooperative Transmission |
Authors : | Seungyoup Han, Seongwoo Ahn, Eunsung Oh, and Daesik Hong |
Journal : | IEEE Transactions on Vehicular Technology |
Abstract : | In this paper, a framework for evaluating the bit-error-rate (BER) performance of amplify-and-forward (AF) relay-assisted cooperative transmission is provided in the presence of imperfect channel estimation. First, the AF relaying is classified into two cases - a variable gain and a fixed gain. For each case, the closed-form average BER is derived by using the moment-generating function (MGF) of the effective output SNR, which quantifies the SNR penalty due to the noisy channel estimate. Moreover, the asymptotic BER bound is also provided at a high SNR regime for the insight of our approach. In particular, the effect of the feedforward delay on informing the source-relay channel estimate as to the destination is presented in the variable-gain relay. Numerical investigation shows that the analytic result makes an exact match with the simulation, and the comparative superiority between the fixed- and variable-gain relay is discussed. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4663882 |
Seungyoup Han; Seongwoo Ahn; Eunsung Oh; Daesik Hong; , "Effect of
Channel-Estimation Error on BER Performance in Cooperative Transmission,"
Vehicular Technology, IEEE Transactions on , vol.58, no.4, pp.2083-2088,
May 2009
doi: 10.1109/TVT.2008.2007644
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4663882&isnumber=4897220
doi: 10.1109/TVT.2008.2007644
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4663882&isnumber=4897220
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