Bonjin Ku, Hayoung Yang, Sukhyon Yoon, Sangchul Han, C. Kang
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引用次数: 2
摘要
本文提出了一种具有带宽效率的扩频turbo编码方案。该方案在高斯信道和瑞利衰落信道上都具有良好的性能。我们还展示了turbo代码在多用户环境中的强大功能。本文从误差控制性能和带宽效率两个方面研究了差分星型16-QAM调制的turbo编码直接序列扩频多址(DS/SSMA)系统。结果表明，该编码系统具有良好的误码性能和2 bit /s/Hz的频谱效率。
Turbo code and star 16-QAM for DS/SSMA communications
In this paper, we propose a turbo coding scheme for spread spectrum with bandwidth efficiency. The scheme has a good performance on Gaussian channels and Rayleigh fading channels. We also show that the turbo code is powerful in multi-user environments. In our research, the turbo coded direct-sequence spread spectrum multiple access (DS/SSMA) system with differentially encoded star 16-QAM modulation is investigated in both aspects of error control performance and bandwidth efficiency. The results show that the coding system has a good error performance and spectral efficiency of 2 bits/s/Hz with star 16-QAM.
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