Conference paper Open Access

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

Patriciello, Natale; Lagen, Sandra; Giupponi, Lorenza; Bojovic, Biljana


MARC21 XML Export

<?xml version='1.0' encoding='UTF-8'?>
<record xmlns="http://www.loc.gov/MARC21/slim">
  <leader>00000nam##2200000uu#4500</leader>
  <datafield tag="540" ind1=" " ind2=" ">
    <subfield code="u">https://creativecommons.org/licenses/by/4.0/legalcode</subfield>
    <subfield code="a">Creative Commons Attribution 4.0 International</subfield>
  </datafield>
  <datafield tag="260" ind1=" " ind2=" ">
    <subfield code="c">2018-09-17</subfield>
  </datafield>
  <controlfield tag="005">20200120172230.0</controlfield>
  <datafield tag="500" ind1=" " ind2=" ">
    <subfield code="a">Grant numbers : 5G NR design in mmWave bands project and Resource EfFIcient 5G NEtworks (5G-REFINE). © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.</subfield>
  </datafield>
  <controlfield tag="001">2525744</controlfield>
  <datafield tag="909" ind1="C" ind2="O">
    <subfield code="p">openaire</subfield>
    <subfield code="o">oai:zenodo.org:2525744</subfield>
  </datafield>
  <datafield tag="711" ind1=" " ind2=" ">
    <subfield code="d">17-19 September 2018</subfield>
    <subfield code="g">IEEE CAMAD</subfield>
    <subfield code="a">IEEE International Workshop on Computer-Aided Modeling Analysis and Design of Communication Links and Networks</subfield>
    <subfield code="c">Barcelona (Spain)</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">&lt;p&gt;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 flow rate and the packet size. We demonstrate how, in some cases, the latency is worsened by an increasing signaling exchange that grows with the numerology. In particular, this is due to a handshake mechanism in UL (scheduling request and UL grant) that is performed each time a data packet encounters empty RLC buffers. For some combination of flow rate, packet size, and processing delays that are not numerology dependent, increasing the numerology may not reduce the E2E delay. Therefore, we conclude that the selection of the numerology in an NR system should be carefully made by taking into account the traffic patterns and the processing delays.&lt;/p&gt;</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)</subfield>
    <subfield code="a">Lagen, Sandra</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)</subfield>
    <subfield code="a">Giupponi, Lorenza</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)</subfield>
    <subfield code="a">Bojovic, Biljana</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="s">376682</subfield>
    <subfield code="z">md5:b0a4215b9cca288d52962c05406c7bb4</subfield>
    <subfield code="u">https://zenodo.org/record/2525744/files/5G New Radio Numerologies and their Impact on.pdf</subfield>
  </datafield>
  <datafield tag="542" ind1=" " ind2=" ">
    <subfield code="l">open</subfield>
  </datafield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">publication</subfield>
    <subfield code="b">conferencepaper</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="u">Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)</subfield>
    <subfield code="a">Patriciello, Natale</subfield>
  </datafield>
  <datafield tag="041" ind1=" " ind2=" ">
    <subfield code="a">eng</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">New Radio</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">ns-3</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">numerologies</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">processing delays</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">TCP</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">UDP</subfield>
  </datafield>
  <datafield tag="024" ind1=" " ind2=" ">
    <subfield code="a">10.1109/CAMAD.2018.8514979</subfield>
    <subfield code="2">doi</subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">5G New Radio Numerologies and their Impact on the End-To-End Latency</subfield>
  </datafield>
  <datafield tag="650" ind1="1" ind2="7">
    <subfield code="a">cc-by</subfield>
    <subfield code="2">opendefinition.org</subfield>
  </datafield>
</record>
295
1,220
views
downloads
Views 295
Downloads 1,220
Data volume 459.6 MB
Unique views 286
Unique downloads 1,166

Share

Cite as