Book excerpt: Optical Wireless Communications for Broadband Global Internet Connectivity: Fundamental and Potential Applications provides a comprehensive overview for readers who require information about the fundamental science behind optical wireless communications, as well as up-to-date advanced knowledge of the state-of-the-art technologies available today. The book is a useful resource for scientists, researchers, engineers and students interested in understanding optical, wireless communication systems for global channels. Readers will find beneficial knowledge on how related technologies of optical wireless communications can be integrated into achieving worldwide Internet connectivity. - Presents an in-depth coverage of information on optical wireless communication in a single source - Combines the fundamentals with the most recent advanced technology of achieving global Internet access and connectivity - Provides derivations of the mathematical equations - Includes between chapter sections where information and learning from one chapter is connected to other chapters