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Integrated mobility and resource management for cross-network resource sharing in heterogeneous wireless networks using traffic offload policies

机译：使用流量分载策略在异构无线网络中实现跨网络资源共享的集成移动性和资源管理

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The problem of efficient use of resources in wireless access networks becomes critical today with users expecting continuous high-speed network access. While access network capacity continues to increase, simultaneous operation of multiple wireless access networks presents an opportunity to increase the data rates available to end-users even further using intelligent cross-network resource sharing. This paper introduces a new integrated mobility and resource management (IMRM) framework for automatic execution of policies for cross-network resource sharing using traffic offload and pre-emptive resource reservation algorithms. The presented framework enables both mobile-initiated and network-initiated resource sharing policies to be executed. This paper presents the framework in detail and analyses its performance using extensive ns-2 simulations of the operation of a set of static policies based on measured signal strength, and dynamic pre-emptive network-initiated policies in a WiFi/WiMAX scenario. The detailed evaluation of the static policies clearly shows that the quality of voice applications shows large deviation, mostly due to very different levels of delay in access networks. Based on these conclusions, this paper presents a design of two new dynamic policies and shows that such policies, when efficiently implemented using the new IMRM framework can greatly improve the capacity of the network to serve voice traffic with a minimal impact on the data traffic and with a very low signalling overhead.
机译：在用户期望持续高速网络访问的今天，在无线访问网络中有效利用资源的问题变得至关重要。在接入网容量不断增加的同时，多个无线接入网的同时运行为进一步使用智能跨网资源共享提供了增加最终用户可用数据速率的机会。本文介绍了一种新的集成移动性和资源管理（IMRM）框架，该框架可使用流量卸载和先占资源预留算法自动执行跨网络资源共享的策略。所提出的框架使得能够执行移动发起的资源共享策略和网络发起的资源共享策略。本文详细介绍了该框架，并使用大量ns-2仿真对一组静态策略的操作进行了分析，该仿真基于测量的信号强度以及WiFi / WiMAX场景中的动态先占网络启动策略。对静态策略的详细评估清楚地表明，语音应用程序的质量显示出较大的偏差，这主要是由于接入网络中的延迟水平差异很大。基于这些结论，本文提出了两种新的动态策略的设计，并表明，当使用新的IMRM框架有效实施这些策略时，可以极大地提高网络为语音流量提供服务的能力，而对数据流量和信令开销非常低。

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