| Lastly, the wireless coverage (range) is an important technical issue that has to be addressed. Wireless coverage refers to the area around an AP within which a client can connect to the network. Many wireless networks are deployed using trial-and-error AP placement. When coverage holes are detected, network designers add new APs which is costly and unpredictable.
Some designers place APs in a regular pattern or grid to eliminate coverage holes. Unfortunately, this approach does not take into consideration physical obstructions, and may provide WLAN services to areas where you may not want them, for example, outside the building.
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