We consider joint detection of co-channel signals in Rayleigh fading without using special training signals or additional coding schemes - that is, blind detection. By appropriate selection of detector window size, we approximate the timevariation of the channel gains as piecewise linear, and derive a new Block Blind Maximum Likelihood Sequence Estimator (BBMLSE). It appears this is the first paper to apply the block blind MLSE to time varying channels. Our algorithm is able todistinguish the co-channel signals and estimate the Rayleigh channels (within a phase factor) requiring as many antennas as co-channel signals. An efficient algorithm is presented, and simulation results demonstrate promising performance.
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机译：我们考虑联合检测瑞利衰落中的共信道信号，而无需使用特殊训练信号或额外的编码方案 - 即盲检测。 By appropriate selection of detector window size, we approximate the timevariation of the channel gains as piecewise linear, and derive a new Block Blind Maximum Likelihood Sequence Estimator (BBMLSE).看来这是第一个将块盲MLSE应用于时间变化通道的纸张。我们的算法能够倾向于共区分，并估计需要尽可能多的天线作为共信道信号的瑞利信道（在相位因子内）。提出了一种有效的算法，仿真结果表明了有希望的性能。
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