Summary: Proceedings of IEEE ICMCS, Florence, Italy, June 1999 1
Constant Bandwidth vs Proportional Share Resource Allocation
Luca Abeni, Giuseppe Lipari and Giorgio Buttazzo
Scuola Superiore S. Anna, Pisa
Due to the success of new multimedia technologies, there
is a great interest for providing a resource allocation strat
egy suitable for multimedia applications. Many solutions
proposed in literature are based on proportional share re
source allocation, such as WFQ, WF 2 Q, EEVDF, or SFQ.
In a previous paper, we showed how to perform resource
reservation according to a Constant Bandwidth allocation.
In this paper we compare Proportional Share and Constant
Bandwidth resource allocation strategies, by showing ad
vantages and drawbacks of both techniques.
There exists a large class of applications that require real
time computation in order to be effective. An interesting ex
ample is given by multimedia systems, which manage Con