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The IEEE 802.16 standard is one of the most promising broadband wireless access systems. The standard incorporates a QoS architecture that supports both realtime and non-realtime applications. To provide QoS three data schedulers are furnished by the architecture. However, the working of the schedulers are not defined by the standard. Some researchers have attempted to fill this gap by providing different...
The efficiency of computer network has been regarded as a bottleneck in parallel computing paradigm. It is important to have efficient methodology to obtain network performance measures, especially for a large scale system, i.e. exa-scale system. Communication performance is often investigated by the static complexity analysis based on a given network topology or a detailed network simulation, which...
The downlink scheduling problem in multi-queue multi-server systems under channel uncertainty is considered. Two policies that make allocations based on predicted channel states are proposed. The first is an extension of the well-known dynamic backpressure policy to the uncertain channel case. The second is a variant that improves delay performance under light loads. The stability region of the system...
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