I am working on how channel scheduling algorithm influences system level power consumption in software defined radios. I need the power consumption of different components of SDR front ends. Is there any document that lists the model names of the following components in USRP; 1. ADC 2. DAC 3. Analog filters at different stages of the radio front end chain 4. VCO 5. Mixer 6. Programmmable amplifier, etc. If I get the model names of these components, I can look at the individual data sheets and find the corresponding power measurement. Any feedback will be highly appreciated. Thanks, Nazmul -- Muhammad Nazmul Islam Graduate Student Electrical & Computer Engineering Wireless Information & Networking Laboratory Rutgers, USA.

On 01/07/2014 03:02 PM, Nazmul Islam wrote: > I am working on how channel scheduling algorithm influences system > level power consumption in software defined radios. I need the power > consumption of different components of SDR front ends. > > Is there any document that lists the model names of the following > components in USRP; > > 1. ADC > > 2. DAC > > 3. Analog filters at different stages of the radio front end chain > > 4. VCO > > 5. Mixer > > 6. Programmmable amplifier, etc. > > If I get the model names of these components, I can look at the > individual data sheets and find the corresponding power measurement. > > Any feedback will be highly appreciated. > > Thanks, > > Nazmul > > > -- > Muhammad Nazmul Islam > > Graduate Student > Electrical & Computer Engineering > Wireless Information & Networking Laboratory > Rutgers, USA. > Muhammad, Schematics for USRP are located here. Pick the model of interest. http://code.ettus.com/redmine/ettus/projects/public/documents Cheers, Doug Knabe

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Nazmul, interesting work! however, the USRP1/2/N2XX... are modular SDR frontends, meaning that the digital part, the DAC/ADCs, master clocks and the control logic are part of a motherboard, and the Mixers, LNAs, analog filters are set up on different RF daughterboards for different frequency bands and tuning capabilities. There are devices like the B200 that are one-board solutions including RF and baseband processing integration, and you can even get the circuit schematics from the ettus server (http://files.ettus.com/schematics/b200/), as it is with different models too (you can easily find them on the ettus domain using google). Since there are quite a lot of different USRP devices, and even more daughterboards, in different revisions carrying different hardware, I think you should first narrow yourself down to a single platform (or a reasonably small selection of combinations); in the best case this setup would be something that you can actually test your calculations on using your own hardware - everything else would just roughly estimating things, aka educated guessing. Also, the digital signal processing that takes place in the front end (this includes downsampling and digital tuning, including anti-aliasing filters etc) is implemented in FPGA logic - I guess there is no "officially" available power consumption measurement for all the possible operation modes, and you will have to do a lot of own measurements if you want to represent the effects of different sampling rates etc in your works. Furthermore: I'd expect that - since this is Software defined radio after all - typical losses in the amplifiers occur that are dependent on tx signal power and rx signal strength, and that parts like the oscillators, ADC, passive filters are quite invariant to how you hop channels etc. As for (hardware) mixers, since they are basically amplifiers in nonlinear operation points, they should behave like the latter, and their power consumption should not vary very much with mixing frequency (as long as the signal and oscillator amplitudes stay more or less constant). But this is only my initial guess - there are a lot of power considerations going into MAC design, so I guess if you consider power consumption of different MAC architectures you will find a multitude of publications; look at http://www.cel.kit.edu/publikationen.php and search for "power" and "scheduling", read a few references, to get a first feeling on what has been done so far. Hope I was a little helpful, Greetings, Marcus On 07.01.2014 22:02, Nazmul Islam wrote: > I am working on how channel scheduling algorithm influences system > level power consumption in software defined radios. I need the > power consumption of different components of SDR front ends. > > Is there any document that lists the model names of the following > components in USRP; > > 1. ADC > > 2. DAC > > 3. Analog filters at different stages of the radio front end chain > > 4. VCO > > 5. Mixer > > 6. Programmmable amplifier, etc. > > If I get the model names of these components, I can look at the > individual data sheets and find the corresponding power > measurement. > > Any feedback will be highly appreciated. > > Thanks, > > Nazmul > > > > > _______________________________________________ USRP-users mailing > list USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSzHJyAAoJEAFxB7BbsDrLZ7YH+QGvp+7K+ndPESHu4z8Qn/pi 8CfoFdGmYJ91qVNYpXqhpovdeF2VhhfKNP+cTgrKh8BKmHcfgXdmC8T2iJT6Z5CT Z6vKCI6SFXuxN375QykbazAe+Wi7HL1cYXuEYd97yD04zGD6ft9mPSKRz2S2+fIX zPi2HNV9VmMgNaQN0+eQ1YRJPIfukdLwMSVssOlQgeXJNqCFaRIaFvDNdF8O6hIH 7Gp3hyzk4aw9AzqObWCUhH5lX731rE+aloF9Z2skAYEkPU7Aaj7pf85XYIt/hH9l wV0aQtBPszmRs/ED1N7SVCNcAnifOBCD/3kw66DkPiRp9TE5s0aFtBeYMFVezLY= =Iyfb -----END PGP SIGNATURE-----