Software defined radio (SDR) foundations, technology tradeoffs: A survey

Software radio has emerged as a focus of both academic research and commercial development for future wireless systems. This paper briefly reviews the foundation concepts of the Software Radio. It then characterizes the tradeoffs among core software-radio technologies. Object oriented analysis leads to the definition of the radio reference platform and the related layered object-oriented architecture supporting simultaneous hardware and software evolution. Research issues include layering, tunneling, virtual machines and intelligent agents.