OFDM系统中的码间干扰与载波间干扰：统一建模与分析
Intersymbol and Intercarrier Interference in OFDM Systems: Unified Formulation and Analysis
AI总结：
针对多种OFDM系统，本文提出六参数统一表述与无信道长度限制的等效信道矩阵，并推导干扰及SINR理论表达式。
摘要：
本文提出了一种针对七种不同正交频分复用（OFDM）系统的新型统一表述。该表述依赖六个参数，涵盖传统OFDM系统、在发射机和/或接收机中加窗的系统，以及带有循环前缀（CP）或同时带有CP和循环后缀（CS）的系统。文中定义并刻画了一种新的等效信道矩阵，可用于计算接收信号以及码间干扰和载波间干扰功率。与以往工作不同，该新信道矩阵在表述信道卷积时对信道冲激响应长度没有任何限制；此外，它还纳入了加窗OFDM系统发射机中执行的重叠相加过程。进一步地，文中推导了码间干扰、载波间干扰以及信干噪比的新理论表达式。
英文摘要：
A new unified formulation for seven different orthogonal frequency-division multiplexing (OFDM) systems is presented. The proposed formulation relies on six parameters and encompasses conventional OFDM systems, with windowing in the transmitter and/or in the receiver, and also with a cyclic prefix (CP) or both a CP and cyclic suffix (CS). A new equivalent channel matrix that is useful for calculating both the received signal and the intersymbol and intercarrier interference power is defined and characterized. Unlike previous works, this new channel matrix formulates the channel convolution with no restrictions on the length of the channel impulse response. Moreover, it includes the overlap-and-add procedure performed in the transmitter of windowed OFDM systems. Furthermore, new theoretical expressions for the intersymbol and intercarrier interference and also for the signal-to-interference-plus-noise ratio are derived.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
