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为解决DF(decode-and-forward)无线通信系统中空频编码的问题,首先分析传统三中继空频编码SER(Symbol-error-rate),并得出SER的上界和闭合表达式,提出一种联合空频编码和网络编码的方法,分析其SER性能.研究结果表明:在DF系统中,联合网络与空频编码的方法比传统的空频编码具有更好的SER性能.
In order to solve the problem of space-frequency coding in the decode-and-forward (DF) wireless communication system, we firstly analyze the symbol-error-rate (SER) of SER and establish the upper bound and closed expression of SER A method of joint space-frequency coding and network coding is proposed to analyze its SER performance.The research results show that the proposed joint-space and space-frequency coding method has better SER performance than the traditional space-frequency coding in DF system.