Provides an introduction to High-Altitude Platform Station (HAPS) technology and applications for wireless communications High-altitude platform stations offer a promising new technology that combines the benefits of terrestrial and satellite communication systems to provide broadband communications to users with low cost. Key features include: Unique book appears to focus on technology and applications HAPS Provides a thorough overview of the technology including HAPS-based communications systems, antennas for HAPS, radio propagation and channel modeling issues and the HAPS network aspects Presents HAPS-related projects and initiatives being developed around the world (North America, Europe and Asia-Pacific) Features a comprehensive picture of both aspects of aviation and telecommunications regulation, which will affect the deployment and future developments in the field of HAPS High-Altitude Platform Systems Wireless Communications will prove essential reading for graduate students in the field of HAPS, engineers, developers and designers involved in design and maintenance of HAPS, aerospace engineers, and communications system planners and researchers.