Energy-Efficient Uplink Resource Units Scheduling for Ultra-Reliable Communications in NB-IoT Networks

<table class="fixed-width table-group" id="tab1"><tr><td><table class="table"><colgroup><col style="width:8.73em"/><col style="width:13.42em"/><col style="width:6.66em"/><col style="width:7.69em"/></colgroup><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Subcarrier spacing </td><td class="align_center"> Number of tones (subcarriers) </td><td class="align_center"> Classification </td><td class="align_center"> Number of slots </td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">15 KHz</td><td class="align_center"> 1</td><td class="align_center"> single-tone</td><td class="align_center"> 16</td></tr><tr><td class="align_left" colspan="4"><hr/></td></tr><tr><td class="align_left" rowspan="3">15 KHz</td><td class="align_center"> 3</td><td class="align_center" rowspan="3"> multi-tone <br/></td><td class="align_center"> 8</td></tr><tr><td class="align_center"> 6</td><td class="align_center"> 4</td></tr><tr><td class="align_center"> 12</td><td class="align_center"> 2</td></tr><tr><td class="align_left" colspan="4"><hr/></td></tr><tr><td class="align_left">3.75 KHz</td><td class="align_center"> 1</td><td class="align_center"> single-tone</td><td class="align_center"> 16</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The types of resource units (RUs) supported in NB-IoT.</div>

Wireless Communications and Mobile Computing

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Table 1

Table 1: Energy-Efficient Uplink Resource Units Scheduling for Ultra-Reliable Communications in NB-IoT Networks 