Dynamic Resource Scheduling in Delay-Sensitive Passive Optical Networks

There are usually conflicts existing when we want to make end-to-end delay lower and take higher fairness into account. For this issue, this paper presents a novel mechanism to allocate bandwidth dynamically, which uses Pre-allocation and Max-Min Fairness Algorithm for bandwidth allocation and reordering for time slot scheduling. In the experimental environment, the delay of DS services can be reduced by about 25% and the fairness value can be close to 1 under high load conditions, which verifies the proposed DBA algorithm can achieve lower delay and higher fairness than algorithms for comparison