论文标题
无线网络中的深度学习干扰取消
Deep Learning Interference Cancellation in Wireless Networks
论文作者
论文摘要
随着电磁频谱的拥挤和无线网络中的细胞大小的收缩,基站和用户之间的串扰是一个主要问题。尽管事实证明,手工制作的功能块和编码方案可有效保证可靠的数据传输,但目前基于深度学习的方法在通信系统建模中引起了越来越多的关注。在本文中,我们提出了一种基于神经网络(NN)的信号处理技术,该技术与传统的DSP算法一起使用,以克服实时的干扰问题。该技术不需要接收器和发射器之间的任何反馈协议,这使其非常适合低延迟和高数据速率应用程序,例如自主权和增强现实。尽管最近在控制层中使用加固学习(RL)来管理和控制干扰的工作是新颖的,因为它引入了一个以基本数据速率和物理层中的信号处理的神经网络。我们使用卷积LSTM自动编码器证明了这种“深层干扰取消”技术。当应用于QAM-OFDM调制数据时,该网络会在符号错误率(SER)上显着提高。我们进一步讨论了硬件实施,包括延迟,功耗,内存需求和芯片区域。
With the crowding of the electromagnetic spectrum and the shrinking cell size in wireless networks, crosstalk between base stations and users is a major problem. Although hand-crafted functional blocks and coding schemes are proven effective to guarantee reliable data transfer, currently deep learning-based approaches have drawn increasing attention in the communication system modeling. In this paper, we propose a Neural Network (NN) based signal processing technique that works with traditional DSP algorithms to overcome the interference problem in realtime. This technique doesn't require any feedback protocol between the receiver and transmitter which makes it very suitable for low-latency and high data-rate applications such as autonomy and augmented reality. While there has been recent work on the use of Reinforcement Learning (RL) in the control layer to manage and control the interference, our approach is novel in the sense that it introduces a neural network for signal processing at baseband data rate and in the physical layer. We demonstrate this "Deep Interference Cancellation" technique using a convolutional LSTM autoencoder. When applied to QAM-OFDM modulated data, the network produces significant improvement in the symbol error rate (SER). We further discuss the hardware implementation including latency, power consumption, memory requirements, and chip area.