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�������պ����ѧѧ�� 2012, Vol. Issue (3) :291-296    DOI:
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�ڼ�, ����*
�Ͼ����պ����ѧ ����ѧԺ, �Ͼ� 210016
Resource allocation scheme under rain fading in multi-beam mobile satellite systems
Yu Jia, Zong Peng*
College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

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ժҪ �����˥�Ը�Ƶ�ε�����ͨ����ɵIJ���Ӱ��,��������Ӧǰ��������(FEC,Forward Error Correction)ʹ�������Ϣ������,�����һ����˥�µ�����Ӧ�ŵ�����IJ���.�÷����Dz��õ��������ŵ���������Ϣ�ŵ��Ĵ�����������ϵͳ�������ʵ�Ҫ��,�ﵽ�ɿ�����Ч���������޵������ŵ���Դ��Ŀ��.ͨ����������˸ò�����Բ�ͬ��Ƶ�κͽ�������¶Ժ��в�����Ӱ��,�����п����˻���ҵ�����б�����ҵ����ߵ�����Ȩ.�������������������ŵ��������ھ����������Ϣ���Ա�֤�ڲ�����ͨ���жϵ�ǰ����,��������ϵͳ���ŵ������ʵ�Ҫ��.
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Abstract�� An efficient dynamic resource calculation algorithm applicable to satellite networks was presented. The rain attenuation was taken into account, and adaptive forward error correction(FEC) coding technology was used to mitigate the decrease in signal to noise ratio caused by rain. In order to guarantee the information date rate and bit error rate, the proposed scheme adaptively increases the number of channels to transmit more information date.The algorithm-s performance was validated through simulation of different rain rates and frequencies, and the theoretical analysis and simulation results were matched perfectly.
Keywords�� resource allocation   rain attenuation   adaptive coding   communication link   bit error rate     
Received 2010-11-20;
�ڼ�, ����.������˥�����µĶನ��������Դ�������[J]  �������պ����ѧѧ��, 2012,V(3): 291-296
Yu Jia, Zong Peng.Resource allocation scheme under rain fading in multi-beam mobile satellite systems[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V(3): 291-296
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