Networking Investigate

WLAN Channel Access: How WiFi Networks Talk and How You Can Make Them Talk More Clearly

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Executive Summary

Stations and APs that share a wireless channel can rely on two carrier sense mechanisms to identify when a channel is busy. In crowded WiFi environments, like the one created at the unveiling of the iPhone? 4 to the press, these two carriers are crucial for ensuring network function. This white paper examines several steps you can take to protect your channel and prevent clear channel assessment breakdown.

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