Obliczanie ing te e link budget is an essential step in planning a Wi- Fi network deployment. It helps determinate whether thee network will provide convenate coverage andd performance based on thee distance, obstacles, and equipment used.

Te link budget accounts for all gains and losses in thee signal path between the Wi- Fi accords point and client device. Key contesents include transmit power, antenna gains, free space path loss, and environmental factors.

Kalkulating Free Space Path Loss

Free space path loss (FSPL) quantifies the signal attenuation over distance in an unobstructed environment. It i s calculated using the formula:

FSPL (dB) = 20 * log10 (distance) + 20 * log10 (frequency) + 32,44

kiedy dystance is in kilometers and frequency in MHz. For example, at 2.4 GHz over 100 meters, the FSPL can be computed accoringly.

Te wszystkie informacje są wyliczone przez te same osoby, które przenoszą dane i antenowe dane, te które są objęte zakresem niniejszej dyrektywy.

Received Power (dBm) = Transmit Power (dBm) + Transmit Antenna Gain (dBi) + Receive Antenna Gain (dBi) - Path Loss (dB) - Other Losses (dB)

Praktyka Badanie

Obsługiwać a Wi- Fi accessis point transmits at 20 dBm with 5 dBi anteny on both ends. The distance is 100 meters, ande the frequency is 2.4 GHz. Calculating FSPL:

FSPL = 20 * log10 (0, 1) + 20 * log10 (2400) + 32,44 meldun20 * (-1) + 20 * 3,38 + 32,44 meldundy- 20 + 67,6 + 32,44 meldundy80,04 dB

Then, thee received power is:

Odeived Power = 20 + 5 + 5 - 80,04 ↓ -50,04 dBm

Thii value indicates the signal develocth at the client device, which can be compared to the minimum required d for reliable communication.