Software radio architecture evolution: Foundations, technology tradeoffs, and architecture implications

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