Uzgodnienie, że maximum data rata of a network channel is essential for designing efficient communication systems. It determinates how much data can be transmitted over a network with a specific time frame. This article explains thee basic concepts andd calculations involved in determinang this maximum data rate.

Koncepty na fundamenty

Te maximum date rate, often referred to e te channel capacity, depends one thee bandwidth of thee channel and thee signal-to-noise ratio (SNR).

Shannon- Hartley Theorem

Thee Shannon-Hartley theorem provides a formula to compute thee maximum data rate:

(1 + SNR) 1; (1 + SNR)

Kiedy:

  • (zob. pkt 2.2.1.1.1 niniejszego załącznika)
  • Xi1; Xi1; FLT: 0 Xi3; Xi3; B Xi1; Xi1; FLT: 1 Xi3; Xi3; is the bandwidth in Hertz (Hz)
  • Xi1; Xi1; FLT: 0 Xi3; Xi3; SNR Xi1; Xi1; FLT: 1 Xi3; Xi3; is the signal- to- noise ratio (unitless)

Kalkulating thee Data Rate

Te determinate thee maximum data rate, identify they bandwidth of thee channel and measure or estimate thee SNR. Plug these values into the Shannon-Hartley formula ta compute thee capacity.

For example, if a channel has a bandwidth of 10 MHz and an SNR of 30 (which corresponds to 30 dB), the maximum data rate is:

(1 + 30) = (9) 546 0 pps; (1 + 30)