LSTM神经网络驱动的移动前传XG-PON动态带宽预测算法

0 下载量 188 浏览量 更新于2024-08-29 收藏 998KB PDF 举报
本文主要探讨了一种基于长短期记忆(Long Short-Term Memory, LSTM)神经网络的动态带宽分配(Dynamic Bandwidth Allocation, DBA)方法在移动前传(Mobile Front-Haul, MFH)网络中的应用,特别是在10吉比特能力的无源光网络(Passive Optical Network, PON)环境中。传统的DBA方法往往受限于回程时间延迟,这对于满足MFH链接所需的严格低延迟需求是不足够的。作者Min Zhang、Bo Xu等人提出的新策略通过LSTM神经网络对到达光网络单元(Optical Network Unit, ONU)缓冲区的包数量进行预测,从而有效地消除了这一问题。 LSTM神经网络的优势在于其能够处理序列数据中的长期依赖关系,这使得它在预测流量模式和行为时比传统的前馈神经网络(Feed-Forward Neural Networks, FFNN)表现更优。这种方法的创新之处在于利用了LSTM的记忆单元来捕捉时间序列数据中的动态变化,这对于通信网络中的流量预测至关重要,因为它可以帮助网络更好地规划和管理带宽资源,避免突发流量导致的拥塞。 在实验部分,研究人员进行了广泛的模拟分析,结果显示基于LSTM的DBA方法在降低延迟、提高网络效率和稳定性方面表现出色。这项研究对于优化移动前传网络的带宽分配机制具有实际意义,特别是在追求高速度和低延迟的5G和未来移动通信网络中,能够为用户提供更流畅、更可靠的连接体验。 总结来说,这篇论文的核心知识点包括:LSTM神经网络在动态带宽分配中的应用、其在预测移动前传网络流量方面的优势、如何通过消除传统DBA的回程时间延迟来满足低延迟需求,以及与传统FFNN的性能比较。这一研究不仅推动了无线通信领域的技术进步,也为未来的网络设计提供了有价值的技术参考。

With the rapid development of China's economy, the per capita share of cars has rapidly increased, bringing great convenience to people's lives. However, with it came a huge number of traffic accidents. A statistical data from Europe shows that if a warning can be issued to drivers 0.5 seconds before an accident occurs, 70% of traffic accidents can be avoided. Therefore, it is particularly important to promptly remind drivers of potential dangers to prevent traffic accidents from occurring. The purpose of this question is to construct a machine vision based driving assistance system based on machine vision, providing driving assistance for drivers during daytime driving. The main function of the system is to achieve visual recognition of pedestrians and traffic signs, estimate the distance from the vehicle in front, and issue a warning to the driver when needed. This driving assistance system can effectively reduce the probability of traffic accidents and ensure the safety of drivers' lives and property. The main research content of this article includes the following aspects: 1. Implement object detection based on the YOLOv5 model. Conduct research on convolutional neural networks and YOLOv5 algorithm, and develop an object detection algorithm based on YOLO5. Detect the algorithm through road images, and analyze the target detection algorithm based on the data returned after training. 2. Estimate the distance from the front vehicle based on a monocular camera. Study the principle of estimating distance with a monocular camera, combined with parameters fed back by object detection algorithms, to achieve distance estimation for vehicles ahead. Finally, the distance estimation function was tested and the error in the system's distance estimation was analyzed. 3. Design and implementation of a driving assistance system. Based on the results of two parts: target detection and distance estimation, an intelligent driving assistance system is constructed. The system is tested through actual road images, and the operational effectiveness of the intelligent driving assistance system is analyzed. Finally, the driving assistance system is analyzed and summarized.

142 浏览量
210 浏览量