Low-Power Wireless Infrared Communications

Otte, Rob; De Jong, Leo P.; Van Roermund, Arthur H. M.

ISBN 10: 0792386434 / ISBN 13: 9780792386438

Editore: Springer, 1999

Unread book in perfect condition. Codice articolo 3339523

Riassunto:

Today, wireless infrared transmission has entered our homes, offices, industry and health care, with applications in the field of remote control, telemetry and local communication. This text covers the underlying technology. As most equipment is battery-powered, the emphasis is on power optimization of the infrared transmission system. System parameters as well as environmental parameters that determine the eventual transmission quality are identified, to facilitate well-reasoned system design. Many design rules, based on calculations, measurements and simulations, are presented to help the designer push the performance close to the limits set by nature and the available technology. Firstly, the basic transmission link is introduced, and strategies to optimize its signal-to-noise ratio are discussed. Lighting flicker is identified as a possible source of interference. Then, receiver noise and bandwidth are discussed. It is argued that noise optimization and bandwidth optimization do not necessarily conflict. The following chapters provide the reader with an overview of modulation and synchronization techniques. Pulse position modulation is recognized as an attractive technique for low-power purposes. As receiver synchronization in those systems is a subject hardly covered by literature, an in-depth discussion of possible synchronization subsystems is included. This reference is for researchers and designers of infrared communication systems and those who are involved in standardization activities (Infrared Data Association, IrDA). For those who are new to the area, the first chapter serves as an introduction.

Contenuti: Preface. 1. Introduction. 2. Overview. 3. Link design - optical considerations. 4. Link design - electronic considerations. 5. Modulation schemes. 6. PPM reception. 7. Synchronization in PPM receivers. 8. Conclusions. A. Radiometric and photometric quantities. B. The area under the Gaussian tail Q (k). C. Calculation of the x-frame PPM power density spectrum. D. Distribution of frame errors. Bibliography. Summary. The authors.

Dati bibliografici

Titolo: Low-Power Wireless Infrared Communications
Casa editrice: Springer
Data di pubblicazione: 1999
Legatura: Rilegato
Condizione: As New