Rigorous Dynamics of Expectation-Propagation Signal Detection via the Conjugate Gradient Method

Rigorous Dynamics of Expectation-Propagation Signal Detection via the Conjugate Gradient Method
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通过共轭梯度法进行严格的期望传播信号检测动力学

DOI：
10.1109/spawc.2017.8227654
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发表时间：
2017
期刊：
Proc. 18th IEEE Int. Workshop Sig. Process. Advances Wirel. Commun.
影响因子：
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通讯作者：
K. Takeuchi and C.-K. Wen
K. Takeuchi and C.-K. Wen
中科院分区：
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文献类型：
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作者：
K. Takeuchi and C.-K. Wen

文献摘要

相似文献

研究了过载多输入多输出系统中基于期望传播的迭代检测问题。利用共轭梯度(CG)方法来降低EP检测的单次迭代复杂度。在信道矩阵酉不变的假设下，分析了大系统极限下基于CG方法的EP检测(EP-CG)的动力学特性，其中发送和接收维度以相同的速率趋于无穷大。主要结果是严格推导了EP-CG的状态演化。
This paper investigates iterative detection based on expectation propagation (EP) in overloaded multiple-input multiple-output systems. The conjugate gradient (CG) method is utilized to reduce the per-iteration complexity of EP detection. Under the assumption of unitarily invariant channel matrices, the dynamics of EP detection based on the CG method (EP-CG) is analyzed in the large system limit, where the transmit and receive dimensions tend to infinity at an identical rate. The main result is a rigorous derivation of state evolution for EP-CG.