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Published in:
2011 | OriginalPaper | Chapter
Performance Evaluation of MAC- and PHY-Protocols in IEEE 802.11 WLAN
Authors : Vishal Sharma, Jagjit Malhotra, Harsukhpreet Singh
Published in: High Performance Architecture and Grid Computing
Publisher: Springer Berlin Heidelberg
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This work evaluates and compares the performance of IEEE 802.11 WLAN scenario by evaluating QoS parameters such as medium access delay, end to end delay and re-transmission attempts at data rate of 2Mbps by means of different mechanisms in PHY- & MAC-layers. The Point coordination function (PCF) and Distribution Coordination Function (DCF) of MAC layer together with mechanism used in Physical layer i.e. Frequency hopping- and Direct sequence- spread spectrum (FHSS & DSSS) are reported and investigated to provide better QoS using OPNET simulator.