Design of Efficient Indoor Visible Light Communication Systems: From Theoretical Foundations to Practical Solutions

高效室内可见光通信系统的设计：从理论基础到实际解决方案

• 批准号: RGPIN-2018-04254
• 负责人: Chaaban, Anas
• 金额: $ 2.4万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=761752
• 关键词: Design; Efficient; Indoor; Visible; Light

The continuous proliferation of new information technology applications (social media, internet-of-things, etc) has on the one hand improved our quality of life, but on the other hand increased the load on radio-frequency (RF) communication systems to the limits. As a result, today's RF bands are not capable of supporting this load, leading to a performance bottleneck which can slow down technological development unless revolutionary solutions are found. This motivated researchers to explore new resources for supporting data-hungry applications. The optical spectrum offers such a resource, especially due to its wide license-free bandwidth. This promoted Optical Wireless Communications (OWC) as a potential candidate solution. For indoor applications, OWC can be established using LED light-fixtures. LEDs can also be used to connect cars with cars and/or infrastructure using car lights and light posts. This research area is known as Visible-Light Communication (VLC) and is very attractive for several reasons. First, it offloads a large portion of traffic from RF systems. Second, it has high energy-efficiency since it combines lighting and communication functionalities. This leads to high quality communication with less energy consumption for a Green future. Since VLC can lead to a new communication paradigm, designing reliable VLC techniques can lead to impactful discoveries in this field. Due to the physics of optical signals and propagation, research on RF communications does not directly apply to VLC. Therefore, there is need for a better understanding of VLC it terms of reliability, capacity, and network design. These form the main thrusts of this Discovery Program. Two important challenges can be identified in this regard. First, the nature of VLC leads to communication system models that are different from RF communications, which renders their study different in terms of reliability and capacity. Designing schemes which achieve optimal performance from these viewpoints while supporting multiple users is important for practical VLC systems. Second, VLC network design requires a good interface with other wired/RF communication networks which form the backbone of a VLC system. This calls for a larger network-level study of VLC for overcoming possible bottlenecks. As such, the goal of this Discovery Program is to build new fundamental knowledge for multi-user VLC systems from a theoretical point-of-view, and to demonstrate the theoretical results practically using experiments, all while maintaining a large-scale holistic view. It is expected that the innovative and impactful results of this research will form the foundations of a fully operational VLC system as an important ingredient of next generation wireless networks, and will provide communications engineers and industry with benchmarks for efficient VLC system design.

一方面，新信息技术应用程序（社交媒体，互联网等）的持续扩散促进了我们的生活质量，但另一方面，将广播频率（RF）通信系统的负担提高到了极限。结果，当今的RF乐队无法支撑这种负载，从而导致性能瓶颈，除非找到革命性的解决方案，否则可以减慢技术的发展。这激发了研究人员探索支持渴望数据的应用程序的新资源。光谱提供了这样的资源，尤其是由于其宽阔的无许可带宽。这促进了光学无线通信（OWC）作为潜在的候选解决方案。对于室内应用，可以使用LED光固定设置OWC。 LED也可用于使用汽车灯和灯柱将汽车与汽车和/或基础设施连接起来。该研究领域被称为可见光通信（VLC），由于几个原因，它非常有吸引力。首先，它从RF系统中卸载了大部分流量。其次，它具有较高的能源效率，因为它结合了照明和通信功能。这会导致高质量的沟通，减少能源消耗，从而获得绿色的未来。由于VLC可以导致新的通信范式，因此设计可靠的VLC技术可以导致该领域有影响力的发现。由于光学信号和传播的物理学，对RF通信的研究并不直接适用于VLC。因此，需要更好地了解VLC IT的可靠性，容量和网络设计条款。这些构成了此发现程序的主要推力。在这方面可以确定两个重要的挑战。首先，VLC的性质导致与RF通信不同的通信系统模型，这使他们的研究在可靠性和能力方面不同。设计方案从这些角度来实现最佳性能，同时支持多个用户对于实用的VLC系统很重要。其次，VLC网络设计需要与其他有线/RF通信网络构成VLC系统骨干的良好接口。这要求对VLC进行更大的网络级研究，以克服可能的瓶颈。因此，该发现计划的目的是从理论观察点为多用户VLC系统建立新的基本知识，并实际上使用实验来证明理论结果，同时保持大规模的整体观点。预计这项研究的创新和有影响力的结果将构成完全运行的VLC系统的基础，作为下一代无线网络的重要组成部分，并将为通信工程师和行业提供高效VLC系统设计的基准。