The Software-defined Radio Is Now a Reality
نویسندگان
چکیده
The role of firmware and digital signal processing in radio transceiver design has increased to meet the global coverage requirement and to cover extra features in the mobile telephony. The Software-Defined Radio (SDR) is the practical approach for this. The paper reviews the SDR concepts, the benefits, the design steps involved in SDR, some emerging concepts, technological solutions and challenges, applications and economy.
منابع مشابه
Defined Radios - The Future is Now
A Software Defined Radio (SDR) is a radio in which all modulation and demodulation functions are defined, and therefore configurable, through software. This creates tremendous flexibility to improve and adapt the capabilities of the radio over time without changing the hardware. The potential for amateur radio experimentation is virtually limitless in terms of performance improvement and the in...
متن کاملUsing FPGAs for Software-Defined Radio Systems: a PHY layer for an 802.15.4 transceiver
During the last decade, designers have used ASICs and DSPs to handle nearly all of the signalprocessing functions associated with radio communications. Latest generation of FPGAs are so powerful that they're now displacing both ASICs and DSPs in software-radio applications. Software radio is an emerging technology, aimed to build flexible radio systems, which are multiple-service, multi-standar...
متن کاملIJSRD - International Journal for Scientific Research & Development| Vol. 2, Issue 06, 2014 | ISSN (online): 2321-0613
Software radio architecture can support multiple standards running by reconfigurable software programs on the backend digital signal processor (DSP) With the advance in digital signal processing and digital communication techniques, software defined radio (SDR) becomes a reality. For an SDR with multi-protocol and/or multi-band capabilities, sample rate conversion (SRC) is an essential element ...
متن کاملHYRA: A Software-defined Radio Architecture for Wireless Embedded Systems
Traditional Software-defined Radio (SDR) architectures cannot go with the requirements of embedded systems, specially in terms of performance and power consumption. Lowpower FPGAs now reaching the market might soon become a viable alternative to overcome such limitations. The Hybrid Radio Architecture (HYRA) introduced in this paper contributes to this scenario as it explores the Hybrid HW/SW C...
متن کاملSDR4all: a Tool for Making Flexible Radio a Reality
In this contribution, we describe the potential of SDR4all (Software Defined Radio for all) to solve the bottlenecks and reduce the innovation cycle related to the design and implementation of flexible radio algorithms. SDR4all is a programmable software tool with radio cards for wireless researchers, students and engineers. It enables to implement in software any wireless scheme between two la...
متن کامل