The NCTUns network simulator and emulator was first released on 11/18/2002. As of February 29, 2012, according to the download user database, more than 20,379 people from 144 countries have registered at the NCTUns web site and downloaded it. (
To see how people in the world are using NCTUns for their researches, you may search the "NCTUns" keyword in Google. To see the impact of NCTUns, you may search the "Network simulator" keyword in Google. To read the many papers that use NCTUns to carry out research, you may search the "NCTUns" keyword in Google Scholar at Nowadays, many IEEE papers that use "NCTUns" are collected in IEEE Xplore digital library and cannot be accessed by Google. To see these papers, enter IEEE Xplore and use "NCTUns" as the keyword to search the full text of papers.
EstiNet Network Simulator
The NCTUns is a high-fidelity and extensible network simulator and emulator capable of simulating various protocols used in both wired and wireless IP networks. Its core technology is based on the novel kernel re-entering methodology invented by Prof. S.Y. Wang [1, 2] when he was pursuing his Ph.D. degree at Harvard University. Due to this novel methodology, NCTUns provides many unique advantages that cannot be easily achieved by traditional network simulators such as ns-2 [3] and OPNET [4].
At NCTU, Prof. S.Y. Wang and his students are working hard to continuously add more functionalities and features to NCTUns. They want to make it a high-quality software and would like to contribute it to the networking community.
What is meant by VANETs communication? A vehicular ad hoc network (VANET) is a collection of groups of active or moving vehicles that are interlinked through a wireless network i.e. ROADSIDE UNITS (RSUs). Nowadays VANET is the only solution when we have a lack of telecommunication among vehicles. We are giving a better vision of the VANET simulator. The primary utilization of VANETs is to give wellbeing and comfort to drivers in traffic conditions.
The chance of empowering correspondence between vehicles through a remote organization animated the production of new conventions, gadgets, and different use situations. Because of the natural hardships of utilizing a genuine testbed to assess these examination commitments, a few Simulators were developed at that point. To test VANETs, simulators are the best choice because of the minimal price.
VANET are constructed from the benefits of both network and versatility simulators. Network simulators are answerable for displaying correspondence conventions and the transmission of messages, while versatility simulator systems are in charge of the development of every hub, i.e., its portability.
Veins are a non-proprietary software framework utilized for running vehicular network simulations. It depends on OMNeT++ and SUMO. The simulator builds an OMNeT++ hub for every vehicle present in the simulation and afterward combines hub developments with developments of vehicles in the street traffic simulator (i.e., SUMO). For this situation, both the network and versatility simulations can run simultaneously. By the use of a normalized connection protocol, the Traffic Control Interface (TraCI) bidirectional coupling was carried out successfully.
The simulator incorporates a huge number that permits displaying distinctive protocol stacks (e.g., IEEE 802.11p, ETSI ITS-G5) just as applications (e.g., vehicle platooning). Veins are intended to fill in as an execution environment for client-written projects, which works with displaying new conditions and applications.
EstiNet is a business network simulator and emulator with high time loyalty. It utilizes an inventive system, known as kernel re-entering, to join the benefits of both the simulation and emulation techniques. Fundamentally, the approach utilizes tunnel network interfaces to consequently capture the packets transferred by two genuine applications and divert them to the simulation engine of EstiNet.
VANET Simulator acts as a voluntary module plug-in to EstiNet. To mimic vehicular traffic, EstiNet upholds a street building capacity, in which a road network can be worked without any preparation or by bringing from a roadmap file.
EstiNet has own portability simulator that considers essential vehicle and human driving conduct, for example, vehicle follow-up, path evolving, surpassing, and consistency with traffic signal signs. Concerning the protocol conventions, IEEE 802.11p, IEEE 1609.3, and IEEE 1609.4 are upheld by EstiNet.
NetSim is a business discrete occasion simulator that covers a wide scope of wired, remote, portable, and sensor organizations. The simulator offers three sorts of licenses: pro, standard, and academic, where just the initial two offer help for VANET simulations. To simulate VANETs, Netsim interfaces with SUMO are needed.
The previous handles the WAVE standard for remote correspondence between vehicles, while the last deals with displaying street traffic conditions. NetSim gives a bunch of execution measurements, connection links, and application throughput plots. Measurements will shift contingent on the sort of network simulated. Utilizing packet trace and event trace, clients can log details of every bundle, as it streams in the network. In NetSim engineering, each kind of network compares to a part of the vanet simulator with its particular protocols conventions. 2ff7e9595c
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