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采用空时分组编码与 Turbo码级联技术 ,提高了经过衰落信道的无线通信系统可靠性 .利用双天线发送分集和单天线接收系统 ,其中将 12 Turbo码作为外码、简单的空时分组码作为内码 .叠代解码方案基于 MAP算法 .解码的复杂程度取决于外码格栅复杂程度 .仿真结果表明 ,利用空时分组编码的发送分集 ,可在几乎不增加额外处理量的情况下显著提高系统的接收性能
The use of space-time block coding and Turbo code concatenation technology improves the reliability of the wireless communication system over the fading channel.Using the dual-antenna transmit diversity and single-antenna receiving system, 12 Turbo codes are used as outer code, simple space-time block code As an inner code.The iterative decoding scheme is based on the MAP algorithm.The complexity of decoding depends on the complexity of the outer code grid.The simulation results show that the transmit diversity using space-time block coding can be significantly improved with little additional processing Improve the system’s reception performance