Explain wireless networking issues when one station is hidden and another is exposed.
Explain wireless networking issues when one station is hidden and another is exposed.
Wireless networking issues can arise when one station is hidden and another is exposed. In wireless networking, "hidden" and "exposed" refer to the ability of a wireless station to detect or not detect other wireless stations within range. When one station is hidden and another is exposed, this can lead to problems with communication between the two stations.
To understand why this is an issue, it's important to first understand how wireless networking works. In wireless networking, devices communicate with each other using radio waves. When one device sends a message, it broadcasts it over a certain frequency of radio waves, which other devices in range can potentially receive and understand.
However, in some cases, not all devices within range of each other can detect each other. This can happen for a number of reasons, but the most common is when one device is hidden from another. A hidden device is one that is within range of another device, but that device is unable to detect it because it is blocked by some obstacle, such as a wall or other physical barrier.
In wireless networking, when one station is hidden and another is exposed, this can lead to what's known as a "hidden node" problem. This occurs when two or more wireless stations are within range of each other, but are unable to detect each other due to some obstacle in the way. When this happens, the stations may attempt to communicate with each other simultaneously, leading to interference and dropped messages.
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