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首页> 外文期刊>Communications, IEEE Transactions on >Noncoherently Non-Catastrophic Trellis Coded Modulation
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Noncoherently Non-Catastrophic Trellis Coded Modulation

机译:非相干非灾难性网格编码调制

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摘要

In this paper, we propose a noncoherently non-catastrophic trellis-coded modulation scheme, in which the transmitter includes a differential encoder, a rotator, an inverse signal mapper, a convolutional encoder and a signal mapper. We present examples of the proposed scheme including MPSK (M-ary phase shift keying), QAM (quadrature-amplitude modulation), and TAPSK (twisted amplitude and phase shift keying). For trellis-coded QAM, a differential encoder with which the complexity of the proposed scheme can be reduced is proposed. Simulation results demonstrate that for noncoherent decoding, the proposed trellis-coded QAM has much better error performance than conventional trellis-coded QAM, and the proposed trellis-coded 16APSK outperforms trellis-coded 16QAM for short observation length.
机译:在本文中,我们提出了一种非相干非灾难性网格编码调制方案,其中的发送器包括差分编码器,旋转器,逆信号映射器,卷积编码器和信号映射器。我们目前提出的方案的示例包括MPSK(M相移键控),QAM(正交幅度调制)和TAPSK(扭曲幅度和相移键控)。对于网格编码的QAM,提出了一种差分编码器,可以降低该编码器方案的复杂度。仿真结果表明,对于非相干解码,所提出的网格编码QAM具有比常规网格编码QAM更好的误码性能,并且在较短的观察长度上,所提出的网格编码16APSK优于网格编码16QAM。

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