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arXiv 2312.01546cs.ITeess.SPmath.IT
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基于消息重要性度量的神经互信息估计器学习信道容量

Learning Channel Capacity with Neural Mutual Information Estimator Based on Message Importance Measure

Zhefan Li, Rui She, Pingyi Fan, Chenghui Peng, Khaled B. Letaief

AI总结:

本文提出基于消息重要性度量的互信息估计器MMIE及广义协作框架,通过生成器与判别器对抗训练同时学习最优码本和估计信道容量,实验表明其在准确性和稳定性上达到最先进水平。

摘要:

信道容量估计在超越5G的智能通信中起着至关重要的作用。尽管其意义重大,但对于大多数信道而言,尤其是对于未被建模为众所周知的典型信道的复杂信道,这项任务具有挑战性。近年来,神经网络已被用于互信息估计与优化,它们尤其被视为学习信道容量的高效工具。在本文中,我们提出了一种协作框架,以同时估计信道容量并设计最优码本。首先,我们将利用基于MIM的GAN——一种使用消息重要性度量(MIM)作为信息距离的新型生成对抗网络(GAN)——进行互信息估计,并开发一种新方法,称为基于MIM的互信息估计器(MMIE)。然后,我们设计了一个用于信道容量学习的广义协作框架,其中生成器被视为产生信道输入的编码器,而判别器是评估生成器性能的互信息估计器。通过对抗训练,生成器自动学习最优码本,判别器估计信道容量。数值实验将证明,与几种传统估计器相比,MMIE在准确性和稳定性方面达到了最先进的性能。

英文摘要:

Channel capacity estimation plays a crucial role in beyond 5G intelligent communications. Despite its significance, this task is challenging for a majority of channels, especially for the complex channels not modeled as the well-known typical ones. Recently, neural networks have been used in mutual information estimation and optimization. They are particularly considered as efficient tools for learning channel capacity. In this paper, we propose a cooperative framework to simultaneously estimate channel capacity and design the optimal codebook. First, we will leverage MIM-based GAN, a novel form of generative adversarial network (GAN) using message importance measure (MIM) as the information distance, into mutual information estimation, and develop a novel method, named MIM-based mutual information estimator (MMIE). Then, we design a generalized cooperative framework for channel capacity learning, in which a generator is regarded as an encoder producing the channel input, while a discriminator is the mutual information estimator that assesses the performance of the generator. Through the adversarial training, the generator automatically learns the optimal codebook and the discriminator estimates the channel capacity. Numerical experiments will demonstrate that compared with several conventional estimators, the MMIE achieves state-of-the-art performance in terms of accuracy and stability.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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