移动Ad Hoc网络端到端时延的准生灭模型
End-to-End Delay Modeling for Mobile Ad Hoc Networks: A Quasi-Birth-and-Death Approach
摘要：
了解移动自组织网络（MANDO）中基本的端到端延迟性能对于在这种网络中支持服务质量（QoS）保证的应用具有重要意义。虽然在文献中已经开发了用于MANNETWORK中的端到端延迟的上界和近似值，但是其通常在延迟分析中引入显著误差，MANNETWORK中的精确端到端延迟的建模仍然是一个技术挑战。这部分是由于人工智能的高度动态行为，但也由于缺乏一个有效的理论框架来捕捉这种动态。本文展示了强大的准生灭（QBD）理论在解决移动自组网中精确端到端时延建模的挑战性问题中的潜在应用。我们首先应用QBD理论来开发一个有效的理论框架来捕捉复杂的动力学在MANNESS。然后，我们表明，在这个框架的帮助下，封闭形式的模型，可以推导出精确的端到端延迟的分析，也每个节点的吞吐量容量在移动自组网。模拟和数值结果进一步说明这些QBD理论为基础的模型以及我们的理论研究结果的效率。
英文摘要：
Understanding the fundamental end-to-end delay performance in mobile ad hoc networks (MANETs) is of great importance for supporting Quality of Service (QoS) guaranteed applications in such networks. While upper bounds and approximations for end-to-end delay in MANETs have been developed in literature, which usually introduce significant errors in delay analysis, the modeling of exact end-to-end delay in MANETs remains a technical challenge. This is partially due to the highly dynamical behaviors of MANETs, but also due to the lack of an efficient theoretical framework to capture such dynamics. This paper demonstrates the potential application of the powerful Quasi-Birth-and-Death (QBD) theory in tackling the challenging issue of exact end-to-end delay modeling in MANETs. We first apply the QBD theory to develop an efficient theoretical framework for capturing the complex dynamics in MANETs. We then show that with the help of this framework, closed form models can be derived for the analysis of exact end-to-end delay and also per node throughput capacity in MANETs. Simulation and numerical results are further provided to illustrate the efficiency of these QBD theory-based models as well as our theoretical findings.
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