| 过饱和多址系统中QPSK非相干多用户信码/相位最佳联合检测 |
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| 引用本文： | 毕见鑫,王映民,易克初.过饱和多址系统中QPSK非相干多用户信码/相位最佳联合检测[J].电子与信息学报,2002,24(1):68-76. |
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| 作者姓名： | 毕见鑫 王映民 易克初 |
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| 作者单位： | 西安电子科技大学综合业务网国家重点实验室,西安,710071 |
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| 基金项目： | 国家自然科学基金(No.69872027) |
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| 摘 要： | 该文首先通过理论推导给出了过饱和多址系统中多用户信码/相位联合估计子。然后提出了低复杂度非相干多用户信码/相位最佳联合检测算法。此算法适用于具有二维星座的线性调制方式。通过计算机仿真实验,分析了此非相干最佳接收机的误码性能及相位提取误差等有关问题,并与相干最佳接收机作了比较,得出了一些有益的结论。
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| 关 键 词： | 过饱和多址通信 非相干检测 相位偏差 |
| 收稿时间： | 1999-11-30 |
| 修稿时间： | 1999年11月30 |
Non-coherent multiuser weight-phase optimal joint detection in over-saturated multiple access communication |
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| Bi Jianxin,Wang Yingmin,Yi Kechu.Non-coherent multiuser weight-phase optimal joint detection in over-saturated multiple access communication[J].Journal of Electronics & Information Technology,2002,24(1):68-76. |
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| Authors: | Bi Jianxin Wang Yingmin Yi Kechu |
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| Institution: | ISN National Key Lab.; Xidian University Xi an 710071 China |
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| Abstract: | This paper explores the problem of non-coherent multiuser weight/phase optimal joint detection for QPSK signal in over-saturated multiple access communication. Firstly, non-coherent multiuser weight/phase estimator is given via theoretical analysis. Then, the low complexity non-coherent multiuser weight/phase optimal joint detection algorithm is proposed, which is fit with practical working-condition and is applicable to linear modulation methods with two-dimensional constellation. Finally, the performance of the non-coherent optimal receiver and the phase estimate error is analyzed via computer simulation aud some useful conclusions are drawn. |
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| Keywords: | Over-Saturated Multiple Access Communication(OSMA) Non-coherent detection Phase offset |
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