高维格子编码调制的均匀性

Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136) Pub Date : 1997-11-02 DOI:10.1109/ACSSC.1997.679127

Changlin Chen, J. Dill, Yung-Cheng Lo, A. Lindsey

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引用次数: 0

摘要

研究了一种用于扩频通信的新型栅格编码调制——高维栅格编码调制的均匀性。高维栅格编码调制集成了一种具有排列状态结构的分组码和高维信号星座。它不仅将编码和调制结合在一起，而且还将PN扩展集成到一个过程中。方案的统一性使我们在性能分析时可以选择任意参考，大大简化了性能分析。证明了双正交信号星座的高维栅格编码调制是一种均匀方案。进一步指出HDTCM方案的均匀性取决于所使用的信号星座的均匀性。

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Uniformity of high dimensional trellis-coded modulation

The uniformity of a new trellis-coded modulation for spread spectrum communications, called high dimensional trellis-coded modulation (HDTCM) is studied. High dimensional trellis-coded modulation integrates a new block code with permuted state structure and a high dimensional signal constellation. It combines not only coding and modulation, but also PN spreading into one single process. The uniformity of the scheme enables us to choose an arbitrary reference during performance analysis which greatly simplifies the performance analysis. The paper proves that high dimensional trellis-coded modulation with a bi-orthogonal signal constellation is a uniform scheme. It further points out that the uniformity of the HDTCM scheme depends upon the uniformity of the signal constellation used.

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Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)

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