doi: 10.17586/2226-1494-2020-20-5-692-700


CMSA/CA PROTOCOL ANALYSIS IN OMNET++ ENVIRONMENT WITH INET FRAMEWORK 

S. P. Khabarov, M. I. Dumov


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Khabarov S.P., Dumov M.I. CMSA/CA protocol analysis in OMNeT++ environment with INET framework. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2020, vol. 20, no. 5, pp. 692–700 (in Russian). doi: 10.17586/2226-1494-2020-20-5-692-700


Abstract
Subject of Research. The paper presents the study of CSMA/CA access control protocol to a wireless data transmission medium by the OMNeT++ simulation environment using the INET framework. The protocol analysis is performed in the two modes: with confirmation of the received packets and without it. Method. The method of simulation and analysis is used in carrying out research. The OMNeT++ environment generates statistical data and builds a time chart in the modeling process. The data obtained are analyzed; an explanation for the each step of the model behavior is given and, as a result, a general conclusion is drawn on the simulation result. Main Results. An approach to CSMA/CA protocol operation study is presented on the example of a wireless network simulation model with the “CsmaCaMac” module from the INET framework included in the structure of all its nodes. The possibility of this module integration is shown without significant change in the node model. The main results of the analysis of statistical data and time charts obtained during simulation are presented, and the necessity of an access control protocol for the data transmission medium is proved. Practical Relevance. The considered approach can be used to develop and test new access control protocols for the data medium or to demonstrate the operation of existing protocols in the educational use.

Keywords: wireless networks, CSMA/CA, modeling, interference, OMNeT ++, INET framework, MAC

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