1. Digital Systems 1 Digital Systems Research Presentation Mohammad Sharifkhani ©

2. Digital Systems Research Presentation Mohammad Sharifkhani © 2

3. Outline  Introduction  Analysis  Simulation  Experiments (Measurement) 3 Digital Systems Research Presentation Mohammad Sharifkhani ©

4. Introduction  In most research works you have: A New: ○ Method, Model, Tool, Device, Architecture, Algorithm, Circuit, etc. which is superior to the previous works in terms of ○ Criteria  You need to prove it through: Analysis Simulation Experiment  Most of the times, you need two consistent evidences Digital Systems Research Presentation Mohammad Sharifkhani © 4

5. Analysis  Be clear about your analytical procedure  Define what is your ultimate objective Is it a parameter? Is it a design guideline? Is it a criteria? A>B  A closed-form equation is always favorable People like math! Digital Systems Research Presentation Mohammad Sharifkhani © 5

6. Analysis  Be clear about your presumptions What are the factors that you are going to ignore? What are the dominant factors? Why would you think you can make such assumptions? ○ Simulations ○ Reports Digital Systems Research Presentation Mohammad Sharifkhani © 6

7. Analysis  Be clear about the variable names, indexes, etc. Try to make use of common variable names in the literature Avoid using unnecessary variables when you do not refer to it Be consistent throughout your entire research work Digital Systems Research Presentation Mohammad Sharifkhani © 7

8. Analysis  Come up with real life examples in your analysis Helps the reader to grasp what you mean  Flow of analysis might be useful Use appendix if necessary Not every equation is useful all the time ○ Too sophisticated equations can not be used in hand calculations and numerical analysis can provide more accurate results  Use analysis to find the trends Digital Systems Research Presentation Mohammad Sharifkhani © 8

9. Simulation  Be clear about your objective for the simulation It influences how fast, accurate you would simulate your idea  Choose the right model for your case Be clear about how it is described ○ How detailed, accurate it is Digital Systems Research Presentation Mohammad Sharifkhani © 9

10. Simulation  Simulation Tool Is it the right tool for the abstraction layer? ○ Time vs. Accuracy How does it work? ○ You need to know what you are doing! Is it an standard tool? (License?) ○ Should we report the tool? Right Device Models for the Tool is available? Digital Systems Research Presentation Mohammad Sharifkhani © 10

11. Simulation  Simulation Test Bench Type of test-bench/benchmarks Standard test-benches/test vectors  Simulation Test Setting Temperature, corner cases, etc.  Well-know simulation methods Time domain, Frequency domain, Monte carlo, etc. Digital Systems Research Presentation Mohammad Sharifkhani © 11

12. Simulation  Sim. Result Analysis Realtime analysis Post sim (off-line) analysis Calibrate your computational analysis ○ How the criteria, FOM, etc. is calculated in your post sim analysis Digital Systems Research Presentation Mohammad Sharifkhani © 12

13. Experiment  Make up your mind on what you are going to measure  Choose your measurement setup before hand Ports, Voltage Levels, Equipment, Connections, … Example: current measurement for power analysis, etc. Digital Systems Research Presentation Mohammad Sharifkhani © 13

14. Experiment Digital Systems Research Presentation Mohammad Sharifkhani © 14

15. Experiment  Stimulating equipments Data generator, Vector signal generator, pulse generator, etc.  Observation equipments Logic analyzer, Vector signal analyzer, oscilloscope, meters,…  Is there standard equipment for a particular testbench/standard? Refer to other works  Repeatability Yield, etc.  Record your results, etc. Analyze and justify your results Digital Systems Research Presentation Mohammad Sharifkhani © 15

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