So, the correct approach is: study the client's behavior, roaming area, and analyze the indoor building
partition, and then properly set the transmission power as low as possible while still providing enough
coverage.
As a part of planning of wireless network deployment, it important to analyses the customer requirement.
So, in the early stage of planning, you will need to:
1. Know target customer Wi-Fi client device by classifying the type, power level and behavior.
2. Upgrade the client driver to the vendor recommended version if possible.
3. Use dual-band client instead of 802.11a/b/g only clients if possible.
4. Test the roaming capabilities of clients in your deployment.