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health care
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Jeongho Park, Sukhyon Yun, Changeon Kang and Daesik Hong, "Antenna Array using a Channel Estimation Technique in a DS/CDMA System with M-ary Orthogonal Modulation", IEEE VTC, Sep. 2000
[IEEE VTC]
조회 104066
Status : | Presented |
---|---|
Date : | 2000-09 |
Title : | Antenna Array using a Channel Estimation Technique in a DS/CDMA System with M-ary Orthogonal Modulation |
Authors : | Jeongho Park, Sukhyon Yun, Changeon Kang and Daesik Hong |
Conference : | IEEE Conference Vehicular Technology |
Abstract : | Adaptive antenna array techniques are known as good one to cancel multipath and multiuser interference. However, some of them need training signals to estimate the desired signal or have heavy complexity to compute the algorithmic processing. In this paper, we propose an antenna array receiver in a direct sequence/code division multiple access (DS/CDMA) system with M-ary orthogonal modulation. At every antenna a channel estimation technique is used, which refers to the maximum correlator output of a RAKE receivee. The estimated channel coefficients enable coherent detection with no need of training signals. Moreover, the antenna weights, which are determined by the estimated channel coefficients make it possible to focus the receiver on the desired signal and to suppress the interference signal. Consequently, the proposed receiver has 20 (dimensions) RAKE structure which can exploit both spatial diversity and temporal diversity. Simulation results show that the performance of the proposed scheme improves 1.5dB in Eb/No at a BER=10-3 over the receiver of noncoherent detection. The results also show that at a BER=10-3, the proposed receiver improves about 2.3 times and 3 times system capacity with 3 and 5 antennas, respectively. |
URL : | http://ieeexplore.ieee.org/xpl/articleDe...ber=887107 |
Jeongho Park; Sukhyon Yoon; Changeon Kang; Daesik Hong; , "Antenna array using a channel estimation technique in a DS/CDMA system with M-ary orthogonal modulation," Vehicular Technology Conference, 2000. IEEE VTS-Fall VTC 2000. 52nd , vol.2, no., pp.759-763 vol.2, 2000
doi: 10.1109/VETECF.2000.887107
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=887107&isnumber=19164
doi: 10.1109/VETECF.2000.887107
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=887107&isnumber=19164
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