Özet:

: A common medium access control (MAC) protocol used in Wi-Fi networks is the distributed coordination function (DCF). In the past few decades, a number of network simulators have been developed to validate their analytical models for DCF and other MAC protocols, among which OMNET has gained popularity. NS3 and OMNET provide fundamental modeling framework for the IEEE 802.11 MAC and PHY layers. In this paper, we conducted a comparative study of a unified IEEE 802.11 DCF analytical model with NS3 and OMNET for performance evaluation. Various access modes and different topologies were examined for comparing the theoretical study with the simulators. This study provided a basis that the results obtained from NS3 and OMNET Wi-Fi modules are also credible just like in the theory.

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