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Simulation of Vertical Handover Algorithms with NCTUns

机译:NCTUns的垂直切换算法仿真

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This paper presents the simulation of Vertical Handover Algorithms (VHA) using NCTUns and tested them on scenarios with WiFi/GPRS or WiFi/WiMAX Mobile networks: The first evaluates parameters such as the network bandwidth, economic cost of the connection and the mobile node mobility and uses a cost function to evaluate candidate networks. The second one is based on application requirements such as bandwidth, latency and % packet loss rate. The third one organizes the nodes connections to balance the load on connection points, optimize battery consumption, or both. We developed several scripts in C and PERL language for inclusion in the tool like other components and use a NCTUns API to communicate with the simulation engine. In simulation scenario we use the multi-interface node for Intelligent Transportation System (ITS) networks or a node for each technology, but they behave as a single node with multiple interfaces. Simulations results are used to analyze the VHAs performance measuring handover delay, number of avoided handovers and computational cost of the algorithms.
机译:本文介绍了使用NCTUns进行垂直切换算法(VHA)的仿真,并在WiFi / GPRS或WiFi / WiMAX移动网络的场景下对其进行了测试:首先评估诸如网络带宽,连接的经济成本和移动节点移动性等参数。并使用成本函数评估候选网络。第二个基于应用程序要求,例如带宽,等待时间和丢包率百分比。第三个组织节点连接以平衡连接点上的负载,优化电池消耗或两者兼而有之。我们使用其他语言将C和PERL语言编写了脚本,以包含在该工具中,并使用NCTUns API与仿真引擎进行通信。在模拟方案中,我们将多接口节点用于智能运输系统(ITS)网络,或者将每种技术用于一个节点,但是它们的行为就像一个具有多个接口的节点。仿真结果用于分析VHA性能,测量切换延迟,避免的切换次数和算法的计算成本。

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