论文标题
全球优化海底光学无线网络的继电器位置
Global Optimization of Relay Placement for Seafloor Optical Wireless Networks
论文作者
论文摘要
光学无线通信是水下宽带访问网络的一种有前途的技术，这对于高分辨率的环境监视应用程序尤为重要。本文重点介绍了深海监测系统，该系统在海底部署了水下光学无线网络。我们将这种光学无线网络建模为一般排队网络，并制定一个最佳的继电器位置问题，其目的是最大化整个系统的稳定性区域，即网络能够适应的流量量的上限。公式化的优化问题进一步证明是非凸的，因此其全局优化是非平凡的。在本文中，我们为此问题开发了一种全局优化方法，并提供了一种有效的算法来计算最佳解决方案。通过数值评估，我们表明可以使用派生的最佳解决方案获得显着的性能增益。
Optical wireless communication is a promising technology for underwater broadband access networks, which are particularly important for high-resolution environmental monitoring applications. This paper focuses on a deep sea monitoring system, where an underwater optical wireless network is deployed on the seafloor. We model such an optical wireless network as a general queueing network and formulate an optimal relay placement problem, whose objective is to maximize the stability region of the whole system, i.e., the supremum of the traffic volume that the network is capable of accommodating. The formulated optimization problem is further shown to be non-convex, so that its global optimization is non-trivial. In this paper, we develop a global optimization method for this problem and we provide an efficient algorithm to compute an optimal solution. Through numerical evaluations, we show that a significant performance gain can be obtained by using the derived optimal solution.
