Wireless innovation through software radios

Authors:
Dola Saha;Dirk Grunwald;Douglas Sicker
Affiliations:
University of Colorado, Boulder, CO;University of Colorado, Boulder, CO;University of Colorado, Boulder, CO
Venue:
ACM SIGCOMM Computer Communication Review
Year:
2008

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Abstract

Advances in networking have been accelerated by the use of abstractions, such as "layering", and the ability to apply those abstractions across multiple communication media. Wireless communication provides the greatest challenge to these clean abstractions because of the lossy communication media. For many networking researchers, wireless communications hardware starts and ends with WiFi, or 802.11 compliant hardware. However, there has been a recent growth in software defined radio, which allows the basic radio medium to be manipulated by programs. This mutable radio layer has allowed researchers to exploit the physical properties of radio communication to overcome some of the challenges of the radio media; in certain cases, researchers have been able to develop mechanisms that are difficult to implement in electrical or optical media. In this paper, we describe the different design variants for software radios, their programming methods and survey some of the more cutting edge uses of those radios.