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首页> 外文期刊>Communications Magazine, IEEE >On-demand scheduling: achieving QoS differentiation for D2D communications
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On-demand scheduling: achieving QoS differentiation for D2D communications

机译：按需调度：实现D2D通信的QoS区分

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摘要

As a major supplement to LTE-Advanced, D2D communications underlaying cellular networks have proven efficient in offloading network infrastructures and improving network performance. The scheduling mechanism plays a key role in providing better user experience in D2D communications. However, controlled by operators, D2D communications pose specific problems that do not exist in available wireless networks. Therefore, mature scheduling mechanisms devised for cellular networks or ad hoc networks are not directly applicable to D2D communications. In this article, we first review recent research on scheduling mechanisms for D2D communications, and discuss the design considerations and implementation challenges. Then we propose an on-demand scheduling mechanism, DO-Fast, which can provide QoS differentiation capabilities. Next, we provide performance evaluations based on simulations and an experimental testbed. Finally, we conclude this article and point out possible directions for future research.
机译：作为对高级LTE的主要补充，事实证明，支持蜂窝网络的D2D通信可有效减轻网络基础架构的负担并提高网络性能。调度机制在提供更好的D2D通信用户体验方面起着关键作用。但是，在运营商的控制下，D2D通信带来了特定的问题，这些问题在可用的无线网络中不存在。因此，为蜂窝网络或自组织网络设计的成熟调度机制不能直接应用于D2D通信。在本文中，我们首先回顾了有关D2D通信调度机制的最新研究，并讨论了设计注意事项和实现挑战。然后，我们提出了一种按需调度机制DO-Fast，它可以提供QoS区分功能。接下来，我们提供基于仿真和实验测试平台的性能评估。最后，我们总结了本文并指出了未来研究的可能方向。

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