A new frame-based packet scheduling discipline designed for variable length packets is discussed. This algorithm extends a weighted round robin scheduling so that it can serve each queue fairly even if the length of packets varies. It can also handle burstiness by one of its important properties which we call "elasticity." In this paper, an overview of the proposed algorithm is described, and then it is systematically analyzed in terms of several important performance parameters: throughput, work complexity and elasticity. The proposed algorithm is evaluated by simulation and compared with the normal weighted round robin with regard to throughput and delay performance, thereby validating fairness of the algorithm with various types of traffic. Focusing on the complexity of the scheduling algorithm, we further propose and evaluate an improved version of the proposed algorithm, which provides the same properties with lower work complexity.

An extended version of weighted round robin scheduling algorithm for variable length packets is discussed. This can serve each flow fairly even if the length of packets varies. Further, an adaptive scheduling algorithm for bursty traffic is added to better treat multimedia sources. In this paper, an overview of the algorithm is described. Subsequently the throughput, latency, work complexity and elasticity for the algorithm are systematically defined and analyzed. These results show advantages of the algorithm compared with a normal or packet-based weighted round robin algorithm.