串行级联空时码的设计
The Design of Serially Concatenated Space-Time Codes
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摘要: 该文设计了一类适用于串行级联空时码(Serially Concatenated Space-Time Code, SCSTC)的两天线卷积空时码(Convolutional Space-Time Code, CSTC)，并将该设计方法推广到多天线的情况，使SCSTC的信息速率可随天线数增加而增加；将EXIT Chart的概念推广到多天线SCSTC中，在此基础上分析了所设计SCSTC的收敛特性。与现有的SCSTC相比，该文设计的SCSTC具有更快的收敛速度和更好的抗衰落性能。Abstract: A class of Convolutional Space-Time Code(CSTC) is designed for Serially Concatenated Space-Time Code(SCSTC) with an arbitrary number of transmit antennas. The most apparent characteristic of the designed SCSTC is that the data rate increases with the number of transmit antennas. The concept of EXIT (EXtrinsic Information Transfer) Chart is generalized to multiple antenna system to study the convergence of SCSTC. Compared with the available SCSTC with space-time trellis code as the inner code, the new SCSTC can converge earlier and have improved performance.
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