Noise Analysis and Detection Based on RF Energy Duration in Wireless LAN

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Executive Summary

Noise is the major problem while working with wireless LAN. In this paper, the authors analyze the noise by using active receiving antenna and also propose the detection mechanism based on RF energy duration. The standard back off mechanism of 802.11 Wireless LAN (WLAN) increases the contention window when a transmission failure occurs in order to alleviate contentions in a WLAN. In addition, many proposed schemes for 802.11 WLAN behave adaptively to transmission failures. Transmission failures in WLANs occur mostly by two causes: collision and channel noise.

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