Simulation study 0f 802.11b DCF using OPNET simulator

Abstract EN

A simulation study of an IEEE 802.11b which is the most important standard for wireless local area networks was presented in this paper.

The simulation is conducted using OPNET IT Guru Academic Edition 9.1.

Wireless network performance depends mainly on the end to end throughput and average delay.

Different applications place different requirements on the network.

Thus, it is necessary to evaluate and analysis the performance of IEEE 802.11b WLAN system under the fundamental access mechanism for medium access control (MAC) called distributed coordination function (DCF).

This can achieve by studying the impact of parameters such as Request to Send / Clear to Send (RTS / CTS), Fragmentation Threshold (FTS) and discuss the best configurations and parameters value in correspondence to network load and topology to get best performance which is the main objective of this paper.