Using Machine Learning to Provide Reliable Differentiated Services for IoT in SDN-Like Publish/Subscribe Middleware

. 2019 Mar 25;19(6):1449. doi: 10.3390/s19061449

Algorithm 2 Initial Delay Constraint Calculation Algorithm

Input:

U s e r D e l a y

N o d e M i n D e l a y

H o p N u m

Output:

I n i t D e l a y C o n s t r a i n t

1:
if $U s e r D e l a y < H o p N u m \times N o d e M i n D e l a y$ then
2:
notify the subscriber to subscribe again
3:
else
4:
$I n i t D e l a y C o n s t r a i n t = U s e r D e l a y / H o p N u m \times λ$
5:
end if
6:
save $I n i t D e l a y C o n s t r a i n t$ to $C o n s t r a i n t T a b l e$
7:
download the delay constraint message to SDN controller