NDLI: From NS-2 to NS-3 - Implementation and evaluation

Content Provider	IEEE Xplore Digital Library
Author	Kamoltham, N. Nakorn, K.N. Rojviboonchai, K.
Copyright Year	2012
Description	Author affiliation: Department of Computer Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand (Kamoltham, N.; Nakorn, K.N.; Rojviboonchai, K.)
Abstract	NS-2 is the most famous simulator among other network simulators. Most of researchers use NS-2 to evaluate their new protocols/architectures. Although NS-2 has much resource and many available tools to generate different characteristics and network scenarios, source codes created on NS-2 is not able to be reused for real implementation. The releasing of NS-3 changes the way researchers work. NS-3 allows the researchers to work on both simulations and emulations with the same implementation and source codes. These can help researchers to evaluate their works on a single computer for simulation or on a real system without wasting their time to implement their works twice; one in NS-2 simulation and the other in real system. In this paper, we elaborate different points of protocol implementation between NS-2 and NS-3. We recommend a setting for mobility trace in order to obtain correct results between NS-2 and NS-3. Then, as a case study, we use DECA, which is a reliable broadcasting protocol for VANETs and previously implemented on NS-2. How to transfer DECA from NS-2 to NS-3 and how to validate its performance are shown. Moreover, an emulation of DECA on real system using NS-3 is described. The emulation results show a problem caused by asymmetric links which is not concerned in most of literatures. In this paper, therefore, we also propose a simple solution to help protocols' operation in the asymmetric link scenarios. The simulation results show that our solution can improve protocol performance.
Starting Page	35
Ending Page	40
File Size	1907382
Page Count	6
File Format	PDF
ISBN	9781457717178
e-ISBN	9781457717192
DOI	10.1109/ComComAp.2012.6153999
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computers Performance evaluation Protocols Vehicular Networks Emulator NS-2 NS-3 Simulation Asymmetric Link Emulation Propagation losses Reliability Simulator
Content Type	Text
Resource Type	Article

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