Software-Defined Radio: High-Impact Technology - What You Need to Know: Definitions, Adoptions, Impact, Benefits, Maturity, Vendors

by Roebuck, Kevin

• ISBN13: 9781743044117
• ISBN10: 1743044119
• Format: Paperback
• Copyright: 2011-06-30
• Publisher: Lightning Source Inc

Summary

A software-defined radio system, or SDR, is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded computing devices. While the concept of SDR is not new, the rapidly evolving capabilities of digital electronics render practical many processes which used to be only theoretically possible. A basic SDR system may consist of a personal computer equipped with a sound card, or other analog-to-digital converter, preceded by some form of RF front end. Significant amounts of signal processing are handed over to the general-purpose processor, rather than being done in special-purpose hardware. Such a design produces a radio which can receive and transmit widely different radio protocols (sometimes referred to as a waveforms) based solely on the sof tware used. Software radios have significant utility for the military and cell phone services, both of which must serve a wide variety of changing radio protocols in real time. In the long term, software-defined radios are expected by proponents like the SDRForum (now The Wireless Innovation Forum) to become the dominant technology in radio communications. SDRs, along with software defined antennas are the enablers of the cognitive radio. This book is your ultimate resource for Software-defined radio (SDR). Here you will find the most up-to-date information, analysis, background and everything you need to know. In easy to read chapters, with extensive references and links to get you to know all there is to know about Software-defined radio (SDR) right away, covering: Software-defined radio, 2G, 3G, 4G, Digital Enhanced Cordless Telecommunications, GNU Radio, HPSDR, List of software-defined radios, Orthogonal frequency-division multiplexing, Software GNSS Receiver, SpeakEasy, Universal Software Radio Peripheral, Multiplexing, Circuit switching, Time-division multiplexing, Frequency-division multiplexing, Multi-user MIMO, Polarization (waves), Spatial multiplexing, Statistical time division multiplexing, Packet switching, Time division multiple access, Frequency-hopping spread spectrum, Direct-sequence spread spectrum, Orthogonal frequency-division multiple access, Single-carrier FDMA, Multi-carrier code division multiple access, Channel access method, Media Access Control, Modulation, Amplitude modulation, Single-sideband modulation, Quadrature amplitude modulation, Frequency modulation, Phase modulation, Space modulation, Frequency-shift keying, Multiple frequency-shift keying, Amplitude-shift keying, On-off keying, Phase-shift keying, Minimum-shift keying, Continuous phase modulation, Pulse-position modulation, Trellis modulation, Spread spectrum, Chirp spread spectrum, Time-hopping, Demodulation, Modem, Line code, Pulse-amplitude modulation, Pulse-width modulation, Pulse-code modulation This book explains in-depth the real drivers and workings of Software-defined radio (SDR). It reduces the risk of your technology, time and resources investment decisions by enabling you to compare your understanding of Software-defined radio (SDR) with the objectivity of experienced professionals.