The energy efficiency of radio transmissions is often measured in bit/Joule. It is computed as the data rate (bit/s) divided by the energy consumption (Watt=Joule/s).
Hello, you can use three approaches:
1) Measuring energy consumption in Joules
2) Energy-efficiency as Joule per bit
3) Throughput as a function of energy in bits per Joules
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The above answers are nice but please take into attention the fairness in exploiting the channels between the SUs in CRN.
Good luck
Thank you very much for the positive ideas. I am also looking at the metrics at each level and equipment. in doing this the energy efficiency can be effectively calculated.
If you want to go into the details, you first should define your simulation/modeling/experiment scenario. For instance, whether you are considering a CRSN using N time-slotted primary channels available to a single PU at every time slot, then you should decide which is your main concern:
a) CRSN energy consumption {e.g., E(t+1) = E(t) - E(t-1)}
b) CRSN energy efficiency (as the main goal) {e.g., ECR, H. Hamdoun et al., "Survey and applications of standardized energy metrics to mobile networks", DOI=http://dx.doi.org/10.1007/s12243-012-0285-z }
c) CRSN throughput (T) with energy constrains {e.g., EE = Rb/PTot or EE = T/PTot, PTot is total power.}
Once you did it, an interference threshold must be determined to handle the MAC policy (sensing, sharing and transmitting). Further details are your contributions.
Regards
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