The Low-latency Region of a Communication Link
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This letter shows the existence of a proportional fair rate allocation in communication links carrying both time-sensitive (TS) and non-time-sensitive traffic (NTS). This optimal point results from maximizing a simple throughput-delay trade-off that considers a) the NTS traffic load, and b) the difference between the maximum and the current delay of the TS packets. To show how the presented trade-off could be used to allocate NTS traffic in a realistic scenario, we use Google Stadia traffic traces to generate the TS flow. Results from this use-case confirm that the throughput-delay trade-off also works when both the packet arrival process and packet service time distributions are general.
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