卫星- umts的自适应调制和编码

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956567

M. Sumanasena, B. Evans

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引用次数: 7

摘要

提出了一种适用于第三代移动卫星系统的自适应编码调制传输方案。发射机根据环境动态选择最优的编码和调制方案，以最大限度地提高频谱和功率效率。在不改变传输功率的情况下保持恒定的平均误码率(BER)，因此该方案简化了功率控制要求。此外，与固定(非自适应)系统相比，可以实现更高的吞吐量。与其他自适应传输系统不同，在我们的工作中，自适应是基于Rice因子的。本文还讨论了一种Rice因子估计算法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Adaptive modulation and coding for satellite-UMTS

An adaptive coding and modulation transmission scheme applicable for third-generation mobile satellite systems is proposed. The transmitter dynamically selects the optimum coding and modulation scheme according to the environment in order to maximize the spectrum and power efficiency. A constant average bit error rate (BER) is maintained without changing (or with a very small change to) the transmitted power, and hence the scheme eases the power control requirements. In addition, a higher throughput can be achieved compared to fixed (non-adaptive) systems. Unlike other adaptive transmission systems, in our work the adaptation is based on the Rice factor. The paper also discusses a Rice factor estimation algorithm.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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