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�������պ����ѧѧ�� 2004, Vol. 30 Issue (11) :1084-1087    DOI:
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Ф����, ����, ���ܸ�, ��ΰ��*
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Complex wavelet packet based MIMO-OFDM wireless system
Xiao Zhengrong, Yu Zhi, Zhao Shaogang, Wu Weiling*
School of Information Engineering, Beijing University of Posts a nd Telecommunications, Beijing 100876, China

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ժҪ Ϊ����Ƶ��ѡ�����ŵ����ṩ��������ҵ��, �����һ���µĶ�����-����Ƶ�ָ���ϵͳMIMO-OFDM(Multi-Input Multi-Output -Orthogonal Frequency Division Multiplexing).��ϵͳʹ�ø�С�����任CWPT(Complex Wavelet Packet Transform)��ʵ��OFDM,������ʹ�ô�ͳ�Ŀ��ٸ���Ҷ�任FFT(Fast Fourier Transform).���ڸ�С�����������кܺõ�����,ͨ������2���û���MIMO-OFDMϵͳ���з���Ľ������,����CWPT��MIMO-OFDMϵͳ����Ҫ��ʹ�ô�ͳ��FFT��MIMO-OFDM ϵͳ��,���Ǹ��Ӷ��Ը�.
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Abstract�� To provide high speed data service in frequency selective fading channels, a new MIMO-OFDM(multi-input multi-output-orthogonal frequency division multiplexi ng) system was proposed. The system used CWPT(complex wavelet packet transform) instead of FFT(fast Fourier transform) to realize OFDM. For t he property of complex wavelet packet functions, simulation of a MIMO-OFDM syst e m with two users show that, the CWPT based MIMO-OFDM system is better than the F FT based MIMO-OFDM system, but the CWPT based MIMO-OFDM scheme has some additi onal complexity.
Keywords�� multi-input multi-output   complex wavelet packet transform   orthogonal frequ ency division multiplexing   minimum mean square error     
Received 2004-06-25;

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About author: Ф���� (1976-),��,�Ĵ�������,��ʿ��, xiaozr@bj1860.net.
Ф����, ����, ���ܸ�, ��ΰ��.ʹ�ø�С������MIMO-OFDM����ϵͳ[J]  �������պ����ѧѧ��, 2004,V30(11): 1084-1087
Xiao Zhengrong, Yu Zhi, Zhao Shaogang, Wu Weiling.Complex wavelet packet based MIMO-OFDM wireless system[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2004,V30(11): 1084-1087
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