A sub-block orthogonal single carrier frequency domain equalization system in fast Rayleigh fading channel  

作　　者：LIU Rui GAO XiQi WANG WenJin 

机构地区：[1]National Communication Research Laboratory,Southeast University,Nanjing 210096,China

出　　处：《Science China(Information Sciences)》2010年第9期1833-1847,共15页中国科学(信息科学)(英文版)

基　　金：supported by the National Science Fund for Distinguished Young Scholars(Grant No.60925004);the National Natural Science Foundation of China(Grant No.60902009);the National Science and Technology Major Project of China(Grants Nos.2009ZX03003-005,2008ZX03003-005)

摘　　要：In this paper, we analyze the frequency domain linear equalization (FDLE) of single carrier block transmission (SCBT) systems under fast fading channel. First, we propose a new approximating model in which the channel is assumed to be static in sub-blocks vary each other. Based on this model, we derive a new 2- orthogonal-sub-blocked frequency domain equalization method. Then, we derive the conditions of the channel under which the equalization method can be applied to the 2-orthogonal-sub-blocked systems. Simulation demonstrates that the proposed method can improve the anti-Doppler ability of SC-FDLE and at the same time keep its high efficiency and low complexity.In this paper, we analyze the frequency domain linear equalization (FDLE) of single carrier block transmission (SCBT) systems under fast fading channel. First, we propose a new approximating model in which the channel is assumed to be static in sub-blocks vary each other. Based on this model, we derive a new 2- orthogonal-sub-blocked frequency domain equalization method. Then, we derive the conditions of the channel under which the equalization method can be applied to the 2-orthogonal-sub-blocked systems. Simulation demonstrates that the proposed method can improve the anti-Doppler ability of SC-FDLE and at the same time keep its high efficiency and low complexity.

关 键 词：SCBT SC-FDE LMMSE 

分 类 号：TN911.5[电子电信—通信与信息系统]