5G Flexible Optical Transport Networks with Large-Capacity, Low-Latency and High-Efficiency

• 作 者: Yuefeng Ji Jiawei Zhang Yuming Xiao Zhen Liu
• 机 构: State Key Lab of Information Photonics and Optical Communications, Beijing University of Posts and T
• 出 处: 中国通信（英文版）
• 发表日期: 2019年5期
• 关键词: 5G optical transport networks op-tical devices optical transport system optical

The fifth generation (5G) of mobile communications are facing big challenges, due to the proliferation of diversified terminals and unprecedented services such as intet of things (IoT), high-definition videos, virtual/augmented reality (VR/AR). To accommo-date massive connections and astonish mobile traffic, an efficient 5G transport network is required. Optical transport network has been demonstrated to play an important role for carrying 5G radio signals. This paper focuses on the future challenges, recent studies and potential solutions for the 5G flexible optical transport networks with the performances on large-capacity, low-latency and high-efficien-cy. In addition, we discuss the technology development trends of the 5G transport net-works in terms of the optical device, optical transport system, optical switching, and opti-cal networking. Finally, we conclude the paper with the improvement of network intelligence enabled by these technologies to deterministic content delivery over 5G optical transport net-works.