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无线通信中应用最大似然序列估计,其时延和计算复杂度是必须解决的两个问题。为跟踪时变的移动无线信道,必须采用自适应信道估计器来提供信道信息。针对以上问题,综述了减少时延和计算复杂度的解决方法,并讨论了各种方法在复杂度和性能之间的权衡。最后指出了今后的研究方向。
The application of maximum likelihood sequence estimation in wireless communication has two problems that must be solved in terms of delay and computational complexity. To track time-varying mobile radio channels, adaptive channel estimators must be used to provide channel information. In view of the above problems, the solutions to reduce the delay and computational complexity are summarized, and the tradeoffs between complexity and performance are discussed. Finally pointed out the future research direction.