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通过结合HBLAST与VBLAST系统的特点以及Turbo编码的结构提出了一种应用于MIMO系统的新型BLAST收发系统Turbo-Like BLAST系统(TLBLAST).该系统实现了高速数据传输,此外每根天线可以采用不同的编码方式对数据实行不同等级的保护.接收端将软输入软输出检测器与迭代译码级联起来,经过迭代有效地提高了系统性能,并且与已有的VBLAST系统迭代接收结构复杂程度相当.仿真结果表明,在平坦Rayleigh衰落MIMO信道下TLBLAST系统性能优于HBLAST系统以及VBLAST系统.
By combining the characteristics of HBLAST with VBLAST system and the structure of Turbo encoding, a new BLAST transceiver system called BLBLAST (TLBLAST) for MIMO system is proposed. The system achieves high-speed data transmission. In addition, each antenna can be different Of the coding system to implement different levels of protection of the data.The receiver soft-input soft-output detector cascaded with the iterative decoding, iteratively improve the system performance, and with the existing VBLAST system iterative reception structure is equivalent to the complexity The simulation results show that TLBLAST system outperforms HBLAST system and VBLAST system under flat Rayleigh fading MIMO channel.