This paper describes the NCTUns simulation tool that facilitates the WiMAX studies of network behaviors and performance analysis. We compare NCTUns with ns-2, QualNet, and OPNET Modeler. The design paradigms of these tools are elaborated. Then we enumerate the WiMAX-related functions that can be simulated by these tools. The performance of NCTUns is studied by an Ethernet network simulation and a WiMAX network simulation.
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… Based on <10> paper, they have evaluated the performance of NCTUns by an Ethernet network simulation and a WiMAX network simulation. This paper describes the NCTUns simulation tool that facilitates the WiMAX studies of network behaviors and performance analysis. …
… The simulated system consists of a single Subscriber Station (SS) and a single Base Station (BS). Figure 1 illustrates the architecture of the simulated WiMAX network Protocols <10> This paper is similar with this research as it focus on simulating and analyzing the performance of Fixed WiMAX Network based on system parameter (Base Station antenna height and distance between Base Station and Subscriber Station). …
… NCTUns is a simulation tool that can simulate the hardware characteristics of network devices, the protocol stacks employed in these devices and the execution of application programs on these devices. NCTUns implements the WiMAX protocol stacks to facilitate the functional and performance studies of the WiMAX system <10>. It is an open-source simulator and executed on Fedora 9 with Linux kernel. …
Investigating the distance effects on performance degradation of fixed WiMax technology using NCTUns tool
WiMAX (Worldwide Interoperability for Microwave Access) is an emerging wireless communication system that can provide wireless broadband access with high data throughput over long distance in a point-to-multipoint and line of sight or non-line of sight environment. There are two main classes of WiMAX called Fixed and Mobile WiMAX. The research objective is to evaluate the performance of Fixed WiMax network within the sub urban area by simulating several scenarios. The scenarios were created based on the changes of system parameters which are base station's antenna height and distance between Base Station (BS) and Subscriber Station (SS). The research is conducted by an open source simulator called NCTUns 5.0, developed by National Chiao Tung University. The Fixed WiMAX topology has been tested and the percentages of data rate degradation with the effects of system parameters were analyzed. Finally, the results obtained show that the performance degrades gracefully with the increasing distance between BS and SS. It is also concluded that 25 meters BS antenna is optimal enough to cover up to 5000 meters area because there is no significant change in the data rate when 50 meters antenna tower is applied.
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… Based on <10> paper, they have evaluated the performance of NCTUns by an Ethernet network simulation and a WiMAX network simulation. This paper describes the NCTUns simulation tool that facilitates the WiMAX studies of network behaviors and performance analysis. …
… The structural design of the simulated WiMAX network is showed in Figure 1 below. Protocols <10> This paper is similar with this research as it focus on simulating and analyzing the performance of Fixed WiMAX Network based on system parameter (Base Station antenna height and distance between Base Station and Subscriber Station). …
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… NCTUns is a valuable simulation and emulator tool that used for network research and planning, to simulate the hardware characteristics and protocol of network devices, and also the execution of application programs on the network devices. NCTUns tool implements the WiMAX protocol stacks to facilitate the functional and performance studies of the WiMAX technology <10>. It is an open-source simulator and emulator that executed on Fedora 12 with Linux kernel. …
Fixed and Mobile WiMAX: A Comparison towards the Distance and Height Effects on Performance Degradation
