Advances, Systems and Applications
Table 1 Notations and Explanations
Notation | Explanation |
|---|---|
B | Bandwidth of the network link between the edge and the cloud. |
d | Average size of the homogeneous atomic data entities to be buffered. |
di | Size of the ith atomic data entity in the buffer. |
Dbf | Overall size of the buffered data. |
Lbf(s) | Combinatory latency of buffering and uploading s atomic data entities (under the buffering mechanism). |
Lbf−up(s) | Latency of uploading the buffered s atomic data entities (under the buffering mechanism). |
Lfifs(i) | Latency of uploading the ith atomic data entity under the FIFS mechanism. |
n | Amount of atomic data entities (prediagnosis reports in our testbed). |
s | Buffer size, measured by the amount of atomic data entities. |
t0 | Starting time point of measuring wall-clock latency. |
t1,t2 | Ending time points of the first and the second minimum-size communication transactions in the FIFS manner. |
tw | Time point when an atomic data entity starts waiting to be transmitted. |
Tbf | Effective buffering time span. |
Tcc | Time span of the minimum-size communication transaction. |
λ | Buffering speed with respect to the amount of atomic data entities. |