Partially Coherent Multiuser Weight/Phase Optimal Joint Detection in Over-Saturated MA Communication

BI Jian-xin; TIAN Hong-xin; YI Ke-chu

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Partially Coherent Multiuser Weight/Phase Optimal Joint Detection in Over-Saturated MA Communication

更新时间：2025-07-16

- Partially Coherent Multiuser Weight/Phase Optimal Joint Detection in Over-Saturated MA Communication
- Acta Electronica Sinica Vol. 29, Issue 1, Pages: 9-13(2001)
- 作者机构：
  
  西安电子科技大学综合业务网国家重点实验室,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.5
- Published：2001
- 稿件说明：
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BI Jian-xin, TIAN Hong-xin, YI Ke-chu. Partially Coherent Multiuser Weight/Phase Optimal Joint Detection in Over-Saturated MA Communication[J]. Acta Electronica Sinica, 2001, 29(1): 9-13.
DOI：

BI Jian-xin, TIAN Hong-xin, YI Ke-chu. Partially Coherent Multiuser Weight/Phase Optimal Joint Detection in Over-Saturated MA Communication[J]. Acta Electronica Sinica, 2001, 29(1): 9-13. DOI：

摘要

本文主要研究了过饱和多址系统中低复杂度部分相干多用户信码/相位最佳联合检测的问题.本文首先基于最大后验概率准则从理论上推导出了部分相干多用户信码/相位联合估计子的表达式;然后给出了低复杂度最佳联合检测算法用以计算此估计子

而且该算法适用于具有二维星座的线性调制方式;同时通过计算机仿真分析了该接收机的误码性能及相位提取误差等有关问题

并与相干、非相干解调两种情况作了比较

得出了一些有益的结论.

Abstract

This paper explores the problem of partially coherent multi-user weight/phase optimal joint detection in over-saturated multiple access communication.Firstly

based on maximum a posteriori criterion

partially coherent multi-user weight/phase estimator is given via theoretical analysis.Then

we present the low complexity partially coherent multi-user weight/phase optimal joint detection algorithm which is applicable to linear modulation methods with two-dimensional constellation.Finally

we analyze the performance of the receiver and the phase estimated error via computer simulation and make comparison with coherent and non-coherent detection.Some useful conclusions are drawn.

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