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Advances, Systems and Applications

Table 2 Summary of model instantiation

From: Energy-aware adaptive offloading of soft real-time jobs in mobile edge clouds

State variables per host h

Unit

n

number of jobs at h

-

\(\hat {T}_{\mathrm {C}}\)

computational time of a job

s

BU

bandwidth for uploading data (to h)

B / s

BD

bandwidth for downloading data (from h)

B / s

PC

power consumption during job computation

W

PD

power consumption during data download

W

PU

power consumption during data upload

W

Time estimates per host h

Unit

TC(h)

\(\hat {T}_{\mathrm {C}}(h) \times \left (n(h) + 1\right) \)

s

TI(h)

BU(h)×|j|I

s

TO(h)

BD(h)×|j|O

s

T(h)

TI(h)+TC(h)+TO(h)

s

Energy estimates per host h

Unit

EC(h)

\(\hat {T}_{\mathrm {C}}(h) \times P_{C}(h)\)

W · s

EI(h)

TI(h)×(PU(hL)+PD(h))

W · s

EO(h)

TO(h)×(PD(hL)+PU(h))

W · s

E(h)

EI(h)+EC(h)+EO(h)

W · s