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Existing researches on the theoretical analysis for Proportional Fair (PF) scheduling are mostly based on the full buffer assumption while the user always has a bursty traffic in reality. In this paper, an analytical framework for PF scheduling in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless network is proposed, and the user traffic is set to follow a poisson arrival process....
Synchronous dataflow graphs (SDFGs) are widely used to model streaming applications such as signal processing and multimedia applications. These are often implemented on resource-constrained embedded platforms ranging from PDAs and cell phones to automobile equipment and printing systems. Trade-off analysis between resource usage and performance is critical in the life cycle of those products, from...
Being of the flexible workflow system can be rapidly and flexibly adapted to the dynamic change and the exception management in the enterprise business process, flexible workflow becomes more and more important. In this paper, based on the analysis of the generating reason of flexible workflow, the main reason of change affecting the flexibility of the workflow system is discussed, the composition...
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