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本文介绍了应用于齐次性随机时变符号干扰信道中的序列检测枝术,求出了不同失配时,序列检测器比特差错率的上下界。在信噪比较高、符号干扰严重时,上下界相当紧密。在失配与信噪比一定时,存在一个使比特差错率最小的最佳传信率。失配越小,最佳传信率越高。在无失配时,符号干扰再也不是限制传信率的因素,符号干扰越严重,系统性能反而越好。在符号干扰无限严重时,系统反而被改造成恒参高斯信道了。
In this paper, we introduce the sequence detection technique applied to homogeneous random time-varying symbol interference channels and find the upper and lower bounds of the bit error rate of the sequence detector for different mismatches. In the high signal-to-noise ratio, the symbol of serious interference, the upper and lower bounds are quite close. At a given mismatch and signal-to-noise ratio, there is an optimum transmission rate that minimizes the bit error rate. The smaller the mismatch is, the higher the optimal transmission rate is. In the absence of mismatch, symbolic interference is no longer a factor that limits the rate of signaling, and the more severe the symbolic interference is, the better the system performance is. In the infinite serious symbol interference, the system was instead transformed into a constant parametric Gaussian channel.