Differential signalling improves the resistance to electromagnetic interference ( EMI ), hence making it a reliable communication channel over long transmission lengths and harsh external environments.
2.
Latency varies depending on a number of factors, such as the physical distance between the end-systems, as a longer distance means additional transmission length and routing required and therefore higher latency.
3.
Routing over the Internet may be extremely indirect, resulting in far more transmission length ( and consequent latency ) than a direct route, although the cloud gaming service OnLive has developed a solution to this issue by establishing peering relationships with multiple Tier 1 network Internet Service Providers and choosing an optimal route between server and user.
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