Direct-To-Device Satellite Communications Handbook (Paperback)

Lingua: inglese

Editore: Independently Published, 2026

9798171711634

Da: Grand Eagle Retail, Bensenville, IL, U.S.A.Grand Eagle Retail

Venditore con 5 stelle

Venditore AbeBooks dal 12 ottobre 2005

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Paperback. HOW DO YOU CONNECT AN ORDINARY SMARTPHONE TO A SATELLITE HUNDREDS OF KILOMETRES ABOVE EARTH-AND MAKE THE LINK ACTUALLY WORK?A smartphone was never designed to communicate directly with a spacecraft travelling at orbital velocity. Yet direct-to-device satellite connectivity is turning that seemingly impossible link into a practical communications architecture.The challenge is not simply putting a cellular radio in space. It is closing the link-despite limited handset power, small antennas, extreme Doppler, long propagation paths, fading, interference, spectrum constraints, and rapidly changing orbital geometry.Direct-to-Device Satellite Communications Handbook takes you through the complete engineering chain, from orbit and link budget to RF payload, waveform, NTN protocols, network architecture, verification, deployment, and constellation economics.WHAT YOU WILL LEARNOrbital mechanics, coverage geometry, slant range, elevation, and pass durationComplete forward- and return-link budget methodologyPropagation loss, fading, shadowing, multipath, and handset body effectsSpacecraft apertures, phased arrays, beamforming, EIRP, G/T, and RF front endsSpectrum licensing, supplemental coverage, PFD limits, and coexistence3GPP Non-Terrestrial Network architecture and protocol adaptationDoppler shift, Doppler rate, propagation delay, timing, and frequency compensationRandom access, mobility, handover, tracking areas, and beam managementWaveforms, coding, repetition, link adaptation, and low-SNR operationCapacity planning, interference management, frequency reuse, and beam hoppingGateways, feeder links, rain attenuation, site diversity, and ground infrastructureTransparent and regenerative payload architecturesMessaging, emergency communications, narrowband voice, IoT, and store-and-forward servicesChannel emulation, satellite emulation, OTA testing, and field validationSecurity, authentication, privacy, GNSS dependency, spoofing, and threat modellingPositioning, timing, ranging, and delay-tolerant networkingMaritime, aviation, vehicular, wearable, and machine-type terminalsConstellation deployment, lifetime, replenishment, reliability, and economicsComplete reference architectures, worked examples, design worksheets, and problem setsFROM ORBIT TO HANDSETThe central engineering reality is simple: THE HANDSET IS THE CONSTRAINED ELEMENT.Its limited transmit power, antenna gain, orientation, blockage, and operating environment place demanding requirements on the spacecraft, waveform, protocol, spectrum plan, and constellation.This handbook develops that relationship quantitatively-showing how orbital geometry becomes a link budget, how the link budget drives payload and waveform decisions, how those decisions affect capacity and interference, and how the resulting architecture must ultimately be verified and deployed.BUILT FOR ENGINEERSDesigned for RF, wireless, telecommunications, satellite, aerospace, 5G/6G, NTN, antenna, payload, modem, chipset, and systems engineers-as well as researchers, graduate students, network architects, satellite operators, and technical programme teams.Prior satellite experience is helpful, but not required. A foundation in electromagnetics, digital communications, and probability is sufficient to follow the engineering chain.DON'T JUST STUDY WHAT DIRECT-TO-DEVICE SATELLITE CONNECTIVITY PROMISES.UNDERSTAND THE ENGINEERING THAT MAKES IT WORK.S Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Codice articolo 9798171711634

Titolo
Direct-To-Device Satellite Communications Handbook (Paperback)
Autore
P.E. Marcus R. Whitfield
Editore
Independently Published
Anno di pubblicazione
2026
Condizione
new
Rilegatura
Paperback
Lingua
inglese
ISBN 13
9798171711634

Grand Eagle Retail

Bensenville, IL, U.S.A.

Venditore con 5 stelle

Venditore AbeBooks dal 12 ottobre 2005

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