Although the topic is broad in nature, I do appreciate the effort to highlight some of the implementation architectures. Great way to enlighten us!
However, was the goal to constraint the discussion to the physical layer implementation?
Lifewingmate, brought a good comment regarding the application layers were SDR shines and provides features that a strictly fixed or programmable hardware solution cannot.
I wonder if software-defined radio can sync with social media and become interactive with the use of applications and smartphones. Is XM radio a form of this popular technology? Would Pandora, Grooveshark, and other songlist/station builder software pieces empowering the continued design of smart software-defined radios? This is an interesting article and I'm interested to hear more about the salabilitly challenges which drive the demand.
Nice to our colleagues in Iraq joining in the discussion.
I think C Davis identified the biggest challenges for SDR in consumer products: cost, power and size. SDR makes much more sense for military applications, where there are so many different waveforms to support and legacy radios to emulate.
Dear Editor... I need to thank the authors of this paper.. I faced the problem of SW defined Radio at the begining of my Phd at 1981. Since that time many scientists facing such challenges, due to many big problems in designing and implementations of the normal transceivers in any specified frequency band or specified applications. What really facing us now after such long period (more than 30 years!), what is really the main challenges for such direction of Radios?.. I think such aspect needs more discuissions.
Dr. Eng. Sattar B. Sadkhan
Chairman of IEEE IRAQ Section
University of Babylon - Computer Technology College
Itís a good technology for the military (and is deployed heavily). I looked at starting up a company to do this in 2003. For the commercial/consumer space, my estimates indicated that SDR always consumes more power and space (i.e. cost) for 3 and less radios. This is a killer for consumer type devices. With life spans of devices of 24 months or less, the additional flexibility doesnít have much perceived value. If we come up with a use case where we have 5+ radios that can be time sliced, it would likely make sense.
I would say Spectrum Sensing Reallocation Strategy would by far be the most powerful of the use cases. Could lead to a stage where spectrum auctions would need to include usage stats rather than selling chunks.
Fairly high level.. SDR as a concept is great but when trying to meet timing requirements on several of the new technologies, it requires a lot of tweaking and in some cases might just not apply.. Discussion on implementation details of a design might help the audience more
Software defined radio continues to be a hot topic with its best applications still up for debate. Sound off here in the comments on what you think the future is for SDR, or if you have questions for the authors.