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    Transmitting and receiving apparatus and method in an orthogonal frequency division multiplexing system using an insufficient cyclic prefix
    1.
    发明公开
    Transmitting and receiving apparatus and method in an orthogonal frequency division multiplexing system using an insufficient cyclic prefix 审中-公开
    装置和方法用于与不足，zyclischen扩展传输和接收在OFDM通信系统

    公开(公告)号：EP1496659A1

    公开(公告)日：2005-01-12

    申请号：EP04014868.6

    申请日：2004-06-24

    申请人： Samsung Electronics Co., Ltd. ,  Postech Foundation

    发明人： Lee, Jong-Hyeuk ,  Kim, Yung-soo ,  Im, Gi-Hong ,  Won, Hui-Chul ,  Park, Cheol-Jin

    IPC分类号： H04L27/26

    CPC分类号： H04L5/006 ,  H04L5/0007 ,  H04L5/0046 ,  H04L2025/03414

    摘要： A preprocessing apparatus and method for a transmitter and a receiver to prevent system performance degradation caused by Inter-Channel Interference (ICI) or inter-symbol interference (ISI) in an OFDM system. In the OFDM system using N carriers having different frequency bands and K carriers of the N carriers designated as redundant carriers, the transmitter renders ICI-causing parts to be zeroes in a data frame, when a cyclic prefix is not longer than a channel impulse response. Therefore, the ICI is prevented. The receiver eliminates the ISI involved in a current frame using an interference estimated from a previous data frame. Therefore, noise spread caused by the use of redundant carriers is prevented and system complexity is remarkably reduced.

    摘要翻译： 使用具有不同频带的N个载波中的预处理装置和方法，用于在发送器和接收器，以防止通过在OFDM系统信道间干扰（ICI）或符号间干扰（ISI）引起的系统性能的下降。在OFDM系统中，并 指定为冗余载波的N个载波的K个载波中，发射器使得ICI-导致部件是在一个数据帧，零当循环前缀不大于信道脉冲响应长。 因此，ICI被阻止。 该接收机消除了ISI使用在来自先前帧的数据所估计的干扰以设置currentFrame参与。 因此，通过使用冗余载波的噪声引起的扩散，防止和系统的复杂性显着降低。