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arXiv 1701.04201cs.ITmath.IT
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服务约束下的稳定无线网络控制

Stable Wireless Network Control Under Service Constraints

Martin Kasparick, Gerhard Wunder

摘要:

我们认为,设计的无线网络控制策略,特别注重结合稳定性与其他应用程序相关的要求。因此,我们因此追求成本函数为基础的方法,提供了灵活性,将特定的服务或应用程序的约束和要求。作为这种要求的典型例子,我们考虑减少缓冲区下溢的情况下,流媒体业务,和电池供电的节点的网络中的能源效率。与经典的吞吐量最优控制问题相比,这样的要求显著地使控制问题复杂化。我们提供了易于验证的理论条件的稳定性,此外,比较各种候选成本函数应用于无线网络与流媒体流量。此外,我们演示了如何将该框架可以应用于能源效率的路由问题,我们展示了我们的框架中的应用程序在跨层控制问题的无线多跳网络,使用先进的功率控制方案的干扰缓解,基于逐次凸逼近。在所有情况下,我们的控制框架的性能进行评估,使用广泛的数值模拟。

英文摘要:

We consider the design of wireless queueing network control policies with particular focus on combining stability with additional application-dependent requirements. Thereby, we consequently pursue a cost function based approach that provides the flexibility to incorporate constraints and requirements of particular services or applications. As typical examples of such requirements, we consider the reduction of buffer underflows in case of streaming traffic, and energy efficiency in networks of battery powered nodes. Compared to the classical throughput optimal control problem, such requirements significantly complicate the control problem. We provide easily verifyable theoretical conditions for stability, and, additionally, compare various candidate cost functions applied to wireless networks with streaming media traffic. Moreover, we demonstrate how the framework can be applied to the problem of energy efficient routing, and we demonstrate the aplication of our framework in cross-layer control problems for wireless multihop networks, using an advanced power control scheme for interference mitigation, based on successive convex approximation. In all scenarios, the performance of our control framework is evaluated using extensive numerical simulations.

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