Pilot-assisted wireless transmissions: general model, design criteria, and signal processing
Pilot-assisted wireless transmissions: general model, design criteria, and signal processing
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DOI：
10.1109/msp.2004.1359139
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发表时间：
2004-11
影响因子：
14.9
通讯作者：
L. Tong;Brian M. Sadler;Min Dong
中科院分区：
文献类型：
--
作者：
L. Tong;Brian M. Sadler;Min Dong
导频辅助传输（PAT）将已知符号与承载信息的数据复用。这些导频符号和特定的复用方案在接收机处是已知的，并且可以用于信道估计、接收机自适应和最佳解码。尽管由于许多实际原因而使用 PAT，但仍然需要优化设计。设计最佳 PAT 的理论和方法已经出现，但仍有很多未知之处。在本文中，作者概述了 PAT。给出了通用 PAT 模型以及对通用设计标准的审查。还讨论了信息论和信号处理问题。
Pilot-assisted transmission (PAT) multiplexes the known symbols with the information bearing data. These pilot symbols and the specific multiplexing scheme are known at the receiver and can be exploited for channel estimation, receiver adaptation, and optimal decoding. Even though PAT has been used for many practical reasons, there still remains a need for an optimal design. The theory and methodology for the design of an optimal PAT have emerged, but much still remains unknown. In this article, the author has presented an overview of PAT. A general PAT model is given as well as the review of the common design criteria. The information theoretic and signal processing issues were also discussed.