串行級(jí)聯(lián)空時(shí)碼的設(shè)計(jì)
The Design of Serially Concatenated Space-Time Codes
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摘要: 該文設(shè)計(jì)了一類適用于串行級(jí)聯(lián)空時(shí)碼(Serially Concatenated Space-Time Code, SCSTC)的兩天線卷積空時(shí)碼(Convolutional Space-Time Code, CSTC)，并將該設(shè)計(jì)方法推廣到多天線的情況，使SCSTC的信息速率可隨天線數(shù)增加而增加；將EXIT Chart的概念推廣到多天線SCSTC中，在此基礎(chǔ)上分析了所設(shè)計(jì)SCSTC的收斂特性。與現(xiàn)有的SCSTC相比，該文設(shè)計(jì)的SCSTC具有更快的收斂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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