The exposed node issue happens when two wireless cells are on the same channel and they are very close to each other. This issue occurs often in wireless B/G networks because they have only three non-overlapping cells. If the clients in either of the overlapping cells transmit data, a collision occurs in the network. This issue can be mitigated by changing the network topology, changing the channel allocation, and deploying an 802.11 network.
Become Cisco CCNA Wireless certified. Pass Cisco 640-721 - IUWNE
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