High capacity optical wireless systems

高容量光学无线系统

• 批准号: 2446037
• 金额: --
• 依托单位: King's College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2446037
• 关键词: capacity; optical; wireless; systems

The radio frequency spectrum is becoming highly congested which limits the network operators' ability to introduce new services. A potential solution is to use the optical spectrum. Optical wireless communication at the infrared wavelengths offers a number of advantages. These include an abundant unregulated spectrum, freedom from signal fading, security at the physical layer as optical signals do not penetrate opaque walls and the ability therefore to re-use the same wavelengths in adjacent rooms. These optical wireless systems however suffer a number of limitations including multipath propagation which results in pulse spread and reduces the achievable data rate; and suffer from interference due to day light and artificial lighting sources. This project will address these impairments and will evaluate the potential of high capacity optical wireless networks and optimum network architectures and protocols.

无线电频谱变得高度拥塞，这限制了网络运营商引入新服务的能力。一个潜在的解决方案是使用光谱。红外波长的光无线通信提供了许多优点。这些包括丰富的不受管制的光谱，信号衰减的自由，物理层的安全性，因为光信号不会穿透不透明的墙壁，因此能够在相邻的房间中重复使用相同的波长。然而，这些光学无线系统遭受许多限制，包括导致脉冲扩展并降低可实现的数据速率的多径传播;并且遭受由于日光和人工照明源的干扰。该项目将解决这些缺陷，并将评估高容量光无线网络和最佳网络架构和协议的潜力。