<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1815-5928</journal-id>
<journal-title><![CDATA[Ingeniería Electrónica, Automática y Comunicaciones]]></journal-title>
<abbrev-journal-title><![CDATA[EAC]]></abbrev-journal-title>
<issn>1815-5928</issn>
<publisher>
<publisher-name><![CDATA[Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59282021000300018</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis del desempeño de la OTFS para mejorar la flexibilidad de la arquitectura para la 6G]]></article-title>
<article-title xml:lang="en"><![CDATA[OTFS performance analysis to improve architecture flexibility for 6G]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blanco Orta]]></surname>
<given-names><![CDATA[Jorge Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerra Martínez]]></surname>
<given-names><![CDATA[María del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marante Rizo]]></surname>
<given-names><![CDATA[Francisco Reinerio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Emisora Municipal de Radio Mariel  ]]></institution>
<addr-line><![CDATA[Artemisa ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de la Habana &#8220;José Antonio Echeverría&#8221; (CUJAE)  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>42</volume>
<numero>3</numero>
<fpage>18</fpage>
<lpage>30</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59282021000300018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59282021000300018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59282021000300018&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el presente artículo se hace un estudio sobre la modulación en el espacio de tiempo-frecuencia ortogonal (OTFS) y su influencia en el desarrollo de las redes inalámbricas, para lograr una mayor transmisión de datos, flexibilidad y confiabilidad para el despliegue de la sexta generación (6G), por los beneficios que puede brindar esta modulación para entornos con dispersión de alta frecuencia. Ofreciendo la posibilidad de abarcar retrasos localizados y degradaciones Doppler, convirtiendo los canales selectivos de tiempo-frecuencia (TF), en un canal invariante en el dominio de retardo-Doppler (DD). Esto será posible gracias a que es un nuevo esquema de modulación bidimensional (2D), donde los símbolos de información se multiplexan en el dominio DD en lugar del dominio de TF, en relación a las técnicas de modulación tradicionales. Definiendo los desafíos de seguridad y privacidad que pueden surgir para la nueva arquitectura de red, aplicaciones y tecnologías habilitadoras, ante lo nuevos requisitos que se establecerán para la 6G. El estudio se realiza con el propósito de mejorar la transmisión de datos, por ser esta una tecnología clave para abordar problemas similares en futuros sistemas masivos de múltiples entradas y múltiples salidas (MIMO), por la capacidad que brinda esta modulación de transformar un canal que se desvanece aleatoriamente dentro del espacio de tiempo frecuencia en un canal estacionario, no aleatorio y sin desvanecimiento, entre el transmisor y el receptor.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This article makes a study on the modulation in the orthogonal time-frequency space (OTFS) and its influence on the development of wireless networks, to achieve greater data transmission, flexibility, and reliability for the deployment of the sixth generation (6G), due to the benefits that this modulation can provide for environments with high-frequency dispersion. Offering the possibility of covering localized delays and Doppler degradations, converting the selective time-frequency (TF) channels into an invariant channel in the delay-Doppler domain (DD). This will be possible thanks to the fact that it is a new two-dimensional (2D) modulation scheme, where the information symbols are multiplexed in the DD domain instead of the TF domain, about traditional modulation techniques. Defining the security and privacy challenges that may arise for the new network architecture, applications, and enabling technologies, given the new requirements that will be established for 6G. The study is carried out to improve data transmission, as this is a key technology to address similar problems in future massive multiple-input and multiple-output (MIMO) systems, due to the ability provided by this modulation to transform a channel that randomly fades within the frequency-time slot on a non-random, non-fading stationary channel between the transmitter and receiver.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[OTFS]]></kwd>
<kwd lng="es"><![CDATA[6G]]></kwd>
<kwd lng="es"><![CDATA[TF]]></kwd>
<kwd lng="es"><![CDATA[retardo-Doppler]]></kwd>
<kwd lng="es"><![CDATA[MIMO]]></kwd>
<kwd lng="en"><![CDATA[OTFS]]></kwd>
<kwd lng="en"><![CDATA[6G]]></kwd>
<kwd lng="en"><![CDATA[delay-Doppler]]></kwd>
<kwd lng="en"><![CDATA[TF]]></kwd>
<kwd lng="en"><![CDATA[MIMO]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[You]]></surname>
<given-names><![CDATA[X H]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[C-X]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts]]></article-title>
<source><![CDATA[Sci China Inf Sci]]></source>
<year>2021</year>
<volume>64</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>110301-74</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alwis]]></surname>
<given-names><![CDATA[C D]]></given-names>
</name>
<name>
<surname><![CDATA[Kalla]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Pham]]></surname>
<given-names><![CDATA[Q V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Survey on 6G Frontiers: Trends, Applications, Requirements, Technologies and Future Research]]></article-title>
<source><![CDATA[IEEE Open Journal of the Communications Society]]></source>
<year>2021</year>
<volume>2</volume>
<page-range>836-86</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Porambage]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Gür]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[D P]]></given-names>
</name>
<name>
<surname><![CDATA[Liyanage]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ylianttila]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[6G Security Challenges and Potential Solutions]]></source>
<year>2021</year>
<conf-name><![CDATA[ Joint European Conference on Networks and Communications (EuCNC) &amp; 6G Summit]]></conf-name>
<conf-loc>Porto, Portugal </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Inomata]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Terahertz Propagation Characteristics for 6G Mobile Communication Systems]]></source>
<year>2021</year>
<conf-name><![CDATA[ 15thEuropean Conference on Antennas and Propagation (EuCAP)]]></conf-name>
<conf-loc>Dusseldorf, Alemania </conf-loc>
<page-range>1-5</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Computing power network: The architecture of convergence of computing and networking towards 6G requirement]]></article-title>
<source><![CDATA[China Communications]]></source>
<year>2021</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>175-85</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[L A]]></given-names>
</name>
<name>
<surname><![CDATA[Calderón]]></surname>
<given-names><![CDATA[A C]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández]]></surname>
<given-names><![CDATA[D T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Procedimiento para la implementación de la computación en la niebla en ciudades inteligentes]]></article-title>
<source><![CDATA[Revista Ingeniería Electrónica, Automática y Comunicaciones, RIELAC]]></source>
<year>2021</year>
<volume>42</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>45-57</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M S]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[Y J]]></given-names>
</name>
<name>
<surname><![CDATA[Sultan]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Joung]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[Y S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Downlink Synchronization for OTFS-Based Cellular Systems in High Doppler Environments]]></article-title>
<source><![CDATA[IEEE Access]]></source>
<year>2021</year>
<volume>9</volume>
<page-range>73575-89</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Mao]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Low-Complexity Parameter Learning for OTFS Modulation Based Automotive Radar]]></source>
<year>2021</year>
<conf-name><![CDATA[ ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)]]></conf-name>
<conf-loc>Toronto, Canadá </conf-loc>
<page-range>8208-12</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shahjalal]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[M F]]></given-names>
</name>
<name>
<surname><![CDATA[Alam]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[M. Rahman]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Jang]]></surname>
<given-names><![CDATA[Y M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fuzzy C-Means Clustering-Based mMIMO-NOMA Downlink Communication for 6G Ultra-Massive Interconnectivity]]></source>
<year>2021</year>
<conf-name><![CDATA[ International Conference on Artificial Intelligence in Information and Communication (ICAIIC)]]></conf-name>
<conf-loc>Isla de Jeju, Corea del Sur </conf-loc>
<page-range>421-4</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[Y L]]></given-names>
</name>
<name>
<surname><![CDATA[Qin]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[L C]]></given-names>
</name>
<name>
<surname><![CDATA[Sim]]></surname>
<given-names><![CDATA[G H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[6G Massive Radio Access Networks: Key Applications, Requirements and Challenges]]></article-title>
<source><![CDATA[IEEE Open Journal of Vehicular Technology]]></source>
<year>2021</year>
<volume>2</volume>
<page-range>54-66</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nawaz]]></surname>
<given-names><![CDATA[S J]]></given-names>
</name>
<name>
<surname><![CDATA[Sharma]]></surname>
<given-names><![CDATA[S K]]></given-names>
</name>
<name>
<surname><![CDATA[Mansoor]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Patwary]]></surname>
<given-names><![CDATA[M N]]></given-names>
</name>
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[N M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Non-Coherent and Backscatter Communications: Enabling Ultra-Massive Connectivity in 6G Wireless Networks]]></article-title>
<source><![CDATA[IEEE Access]]></source>
<year>2021</year>
<volume>9</volume>
<page-range>38144-86</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Poor]]></surname>
<given-names><![CDATA[H V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Age-of-Information for mURLLC Over 6G Multimedia Wireless Networks]]></source>
<year>2021</year>
<conf-name><![CDATA[ 55th Annual Conference on Information Sciences and Systems (CISS)]]></conf-name>
<conf-date>2021</conf-date>
<conf-loc>Baltimore, USA </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mohammed]]></surname>
<given-names><![CDATA[S K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Time-Domain to Delay-Doppler Domain Conversion of OTFS Signals in Very High Mobility Scenarios]]></article-title>
<source><![CDATA[IEEE Transactions on Vehicular Technology]]></source>
<year>2021</year>
<volume>70</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>6178-83</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wei]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Kwan]]></surname>
<given-names><![CDATA[Ng D W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transmitter and Receiver Windows Designs for Orthogonal Time-Frequency Space Modulation]]></article-title>
<source><![CDATA[IEEE Transactions on Communications]]></source>
<year>2021</year>
<volume>69</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>2207-23</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castillo-Rodríguez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tecnología de modulación en el espacio de tiempo-frecuencia ortogonal]]></article-title>
<source><![CDATA[Tecnología en Marcha]]></source>
<year>2021</year>
<volume>34</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>16-24</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ge]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Deng]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Ching]]></surname>
<given-names><![CDATA[P C]]></given-names>
</name>
<name>
<surname><![CDATA[Ding]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Receiver Design for OTFS with a Fractionally Spaced Sampling Approach]]></article-title>
<source><![CDATA[IEEE Transactions on Wireless Communications]]></source>
<year>2021</year>
<volume>20</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>4072-86</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Wei]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Bai]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Performance Analysis of Coded OTFS Systems over High-Mobility Channels]]></article-title>
<source><![CDATA[IEEE Transactions on Wireless Communications]]></source>
<year>2021</year>
<volume>20</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>6033-48</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Wei]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cross Domain Iterative Detection for Orthogonal Time Frequency Space Modulation]]></article-title>
<source><![CDATA[IEEE Transactions on Wireless Communications]]></source>
<year>2021</year>
<page-range>1-30</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[V S]]></given-names>
</name>
<name>
<surname><![CDATA[Dayanand]]></surname>
<given-names><![CDATA[S G]]></given-names>
</name>
<name>
<surname><![CDATA[Chockalingam]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Performance Analysis of OTFS Modulation with Receive Antenna Selection]]></article-title>
<source><![CDATA[IEEE Transactions on Vehicular Technology]]></source>
<year>2021</year>
<volume>70</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>3382-95</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wei]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Kwan]]></surname>
<given-names><![CDATA[D W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Performance Analysis and Window Design for Channel Estimation of OTFS Modulation]]></source>
<year>2021</year>
<conf-name><![CDATA[ IEEE International Conference on Communications]]></conf-name>
<conf-loc>Montreal, Canadá </conf-loc>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pandey]]></surname>
<given-names><![CDATA[B C]]></given-names>
</name>
<name>
<surname><![CDATA[Mohammed]]></surname>
<given-names><![CDATA[S K]]></given-names>
</name>
<name>
<surname><![CDATA[Raviteja]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Hong]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Viterbo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low Complexity Precoding and Detection in Multi-User Massive MIMO OTFS Downlink]]></article-title>
<source><![CDATA[IEEE Transactions on Vehicular Technology]]></source>
<year>2021</year>
<volume>70</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>4389-405</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvarez]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Leguizamón-Páez]]></surname>
<given-names><![CDATA[M A]]></given-names>
</name>
<name>
<surname><![CDATA[Londoño]]></surname>
<given-names><![CDATA[T J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Risks and security solutions existing in the Internet of things (IoT) in relation to Big Data]]></article-title>
<source><![CDATA[Ingeniería y competitividad]]></source>
<year>2020</year>
<volume>23</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-13</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[M S]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[Y J]]></given-names>
</name>
<name>
<surname><![CDATA[Sultan]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Joung]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[Y S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Downlink Synchronization for OTFS-Based Cellular Systems in High Doppler Environments]]></article-title>
<source><![CDATA[IEEE Access]]></source>
<year>2021</year>
<volume>9</volume>
<page-range>73575-89</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[V S]]></given-names>
</name>
<name>
<surname><![CDATA[Chockalingam]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Performance Analysis of OTFS Modulation with Transmit Antenna Selection]]></source>
<year>2021</year>
<conf-name><![CDATA[ 93rdVehicular Technology Conference (VTC2021-Spring)]]></conf-name>
<conf-loc>Helsinki, Finland </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Naikoti]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Chockalingam]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Low-complexity Delay-Doppler Symbol DNN for OTFS Signal Detection]]></source>
<year>2021</year>
<conf-name><![CDATA[ 93rdVehicular Technology Conference (VTC2021-Spring)]]></conf-name>
<conf-loc>Helsinki, Finland </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Deterministic Pilot Design and Channel Estimation for Downlink Massive MIMO-OTFS Systems in Presence of the Fractional Doppler]]></article-title>
<source><![CDATA[IEEE Transactions on Wireless Communications]]></source>
<year>2021</year>
<page-range>1-14</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wei]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Yuan]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Orthogonal Time-Frequency Space Modulation: A Promising Next-Generation Waveform]]></article-title>
<source><![CDATA[IEEE Wireless Communications]]></source>
<year>2021</year>
<volume>28</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>136-144.</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shahjalal]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[M F]]></given-names>
</name>
<name>
<surname><![CDATA[Alam]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rahman]]></surname>
<given-names><![CDATA[M H]]></given-names>
</name>
<name>
<surname><![CDATA[Jang]]></surname>
<given-names><![CDATA[Y M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fuzzy C-Means Clustering-Based mMIMO-NOMA Downlink Communication for 6G Ultra-Massive Interconnectivity]]></source>
<year>2021</year>
<conf-name><![CDATA[ International Conference on Artificial Intelligence in Information and Communication (ICAIIC)]]></conf-name>
<conf-loc>Isla de Jeju, Corea del Sur </conf-loc>
<page-range>421-4</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Jung]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Heo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Hong]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Exploiting Intentional Time-Domain Offset in Downlink Multicarrier NOMA Systems]]></article-title>
<source><![CDATA[IEEE Wireless Communications Letters]]></source>
<year>2021</year>
<volume>10</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1577-80</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Jia]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ge]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Gong]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Improving Physical Layer Security for Reconfigurable Intelligent Surface Aided NOMA 6G Networks]]></article-title>
<source><![CDATA[IEEE Transactions on Vehicular Technology]]></source>
<year>2021</year>
<volume>70</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>4451-63</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ge]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Deng]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Ching]]></surname>
<given-names><![CDATA[P C]]></given-names>
</name>
<name>
<surname><![CDATA[Ding]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[OTFS Signaling for Uplink NOMA of Heterogeneous Mobility Users]]></article-title>
<source><![CDATA[IEEE Transactions on Communications]]></source>
<year>2021</year>
<volume>69</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>3147-61</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chatterjee]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rangamgari]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Tiwari]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Das]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nonorthogonal Multiple Access with Orthogonal Time-Frequency Space Signal Transmission]]></article-title>
<source><![CDATA[IEEE Systems Journal]]></source>
<year>2021</year>
<volume>15</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>383-94</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bariah]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Muhaidat]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Sofotasios]]></surname>
<given-names><![CDATA[P C]]></given-names>
</name>
<name>
<surname><![CDATA[Bouanani]]></surname>
<given-names><![CDATA[F E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Large Intelligent Surface-Assisted Nonorthogonal Multiple Access for 6G Networks: Performance Analysis]]></article-title>
<source><![CDATA[IEEE Internet of Things Journal]]></source>
<year>2021</year>
<volume>8</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>5129-40</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
