publication . Conference object . 2018

5G New Radio Numerologies and their Impact on the End-To-End Latency

Natale Patriciello; Sandra Lagen; Lorenza Giupponi; Biljana Bojovic;
Open Access English
  • Published: 17 Sep 2018
Abstract
In this paper, we use a New Radio (NR) simulator, based on ns-3, to assess the impact of 5G NR numerologies on the end-to-end (E2E) latencies in a realistic and complex scenario, including TCP and UDP flows. As expected, we found that TCP goodput increases with the numerology, since a larger numerology allows reducing the round-trip-time. However, although counter-intuitive, simulation results exhibit that the E2E latency of uplink (UL) UDP flows may not be reduced with the numerology. In fact, it depends on two key factors and their relationship: the processing delays (fixed or numerologydependent) and the inter-packet arrival time, which depends on the UDP flo...
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free text keywords: New Radio, ns-3, numerologies, processing delays, TCP, UDP, Handshake, Orthogonal frequency-division multiplexing, Computer science, Computer network, business.industry, business, Network packet, Latency (engineering), Goodput, Numerology, Telecommunications link, Scheduling (computing)
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Conference object . 2018
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Conference object . 2018
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