




y = a x + b 

I.e., the change in transmission rate is a linear function
Linear increase/decrease congestion control:

x(t+1) = x(t) + A_{increase} (A_{increase} > 0) x(t+1) = x(t) + A_{decrease} (A_{decrease} < 0) 
x(t+1) = B_{increase} * x(t) (B_{increase} > 1) x(t+1) = B_{decrease} * x(t) (B_{decrease} < 1) 

Notes on the above figure:

Quandrants A, B, C and D:







Notes:
Conclusion:

Conclusion:

Conclusion:

Conlusion:

The factor used in multiplicative decrease is different (it is larger) than the one used in the multiplicative increase