Why Latency Matters to Mobile Backhaul - O3b Networks

Why Latency Matters to Mobile Backhaul
Figure 11 – Messages exchanged for TCP connections.
Each message is subject to transmission delay. For complex transmissions,
such as web pages with multiple images and tables, the delay is
cumulative. If a page has ten elements, a 500ms increase in latency will
produce a 5 second increase in the page load time.
TCP throughput and transfer time
TCP throughput, and consequently file transfer duration, is a function of
end-to-end latency, packet loss rate and maximum segment size (more
details are available in Annex 2).
− Throughput is increased by a maximum segment size increase.
− Throughput is decreased by packet loss and/or latency increase.
Figure 12 – Maximum TCP throughput decrease due to latency
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