Filters








6 Hits in 4.6 sec

A Survey on Channel Estimation and Practical Passive Beamforming Design for Intelligent Reflecting Surface Aided Wireless Communications [article]

Beixiong Zheng, Changsheng You, Weidong Mei, Rui Zhang
<span title="2022-02-01">2022</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Intelligent reflecting surface (IRS) has emerged as a key enabling technology to realize smart and reconfigurable radio environment for wireless communications, by digitally controlling the signal reflection  ...  via a large number of passive reflecting elements in real-time.  ...  Note that in the current literature, there are other equivalent terms of IRS, such as reconfigurable intelligent surface (RIS) [13] , [14] , large intelligent surface/antennas (LISA) [15] , smart reflect-array  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2110.01292v3">arXiv:2110.01292v3</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/c47cn4a42zdhtetjinozjtqb6e">fatcat:c47cn4a42zdhtetjinozjtqb6e</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220203085850/https://arxiv.org/pdf/2110.01292v3.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/66/5f/665f3b89ff280aa07abbd29286b5cba5e9697eb6.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2110.01292v3" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Intelligent Reflecting Surface Aided Wireless Communications: A Tutorial [article]

Qingqing Wu and Shuowen Zhang and Beixiong Zheng and Changsheng You and Rui Zhang
<span title="2020-07-07">2020</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks.  ...  By smartly tuning the signal reflection via a large number of low-cost passive reflecting elements, IRS is capable of dynamically altering wireless channels to enhance the communication performance.  ...  surface (RIS) [17] , [18] , large intelligent surface/antennas (LISA) [19] , RFocus [20] , among others, which, despite different numerologies, are essentially based on the same principle of passive  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2007.02759v2">arXiv:2007.02759v2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/tp3ephs5hzhdva4h3s3e6tpkgi">fatcat:tp3ephs5hzhdva4h3s3e6tpkgi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200710072539/https://arxiv.org/pdf/2007.02759v2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/6d/48/6d488f53c1f921c947b436ea9b4dbc11a9902aa6.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2007.02759v2" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Smart container monitoring using custom-made WSN technology: from business case to prototype

Peter Ruckebusch, Jeroen Hoebeke, Eli De Poorter, Ingrid Moerman
<span title="2018-01-15">2018</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/a5gjzjadkzbirdua4xdqipotp4" style="color: black;">EURASIP Journal on Wireless Communications and Networking</a> </i> &nbsp;
This was however not done here: due to the proximity of the metallic container surface, antenna effects cannot be separated from the wireless propagation loss, and as such, the path loss in Eq. 1 includes  ...  Large-scale networks will need multihop communication.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1186/s13638-018-1024-6">doi:10.1186/s13638-018-1024-6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/n4ex6e6icvaqhcpes4c7zrg4ca">fatcat:n4ex6e6icvaqhcpes4c7zrg4ca</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180723045803/https://biblio.ugent.be/publication/8546458/file/8546459.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/64/77/64771417e7c16d6a9e42b86116cbc15237fe8ca9.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1186/s13638-018-1024-6"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> springer.com </button> </a>

Degree-of-Freedom of Modulating Information in the Phases of Reconfigurable Intelligent Surface [article]

Hei Victor Cheng, Wei Yu
<span title="2021-12-27">2021</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
The RIS is an emerging technology that uses a large number of passive reflective elements with adjustable phases to intelligently reflect the transmit signal to the intended receiver.  ...  For example, for an RIS system in which the signals are reflected from a transmitter with M antennas to a receiver with K antennas through an RIS with N reflective elements, assuming no direct path between  ...  Theory, “Large intelligent surface/antennas (LISA): Making reflective radios vol. 57, pp. 5720–5736, Sept. 2011. smart,” J. Commun. Inf. Netw., vol. 4, Jun. 2019.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2112.13787v1">arXiv:2112.13787v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qy7smcj3ibcn5fygcjzzaduk7i">fatcat:qy7smcj3ibcn5fygcjzzaduk7i</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220103094002/https://arxiv.org/pdf/2112.13787v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/43/17/4317a9a2ecdf215bbe5b50a6be86db67eda4b4a7.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2112.13787v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Design and Application of Intelligent Reflecting Surface (IRS) for Beyond 5G Wireless Networks: A Review

Fred Chimzi Okogbaa, Qasim Zeeshan Ahmed, Fahd Ahmed Khan, Waqas Bin Abbas, Fuhu Che, Syed Ali Raza Zaidi, Temitope Alade
<span title="2022-03-22">2022</span>
To address this, Intelligent Reflecting Surface (IRS) is a new technology capable of transforming the wireless channel from a highly probabilistic to a highly deterministic channel and as a result, overcome  ...  GHz band is insufficient to support the bandwidth requirement of emerging data-rate-hungry applications and Internet of Things devices, requiring ultrareliable low latency communication (URLLC), thus making  ...  In [58] , the authors discussed backscatter principles and communication and reflective relay and introduced a large intelligent surface antenna (LISA).  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/s22072436">doi:10.3390/s22072436</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/35408051">pmid:35408051</a> <a target="_blank" rel="external noopener" href="https://pubmed.ncbi.nlm.nih.gov/PMC9003338/">pmcid:PMC9003338</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/4u7hf5qusvh4dnrmtiufbz4sjy">fatcat:4u7hf5qusvh4dnrmtiufbz4sjy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220423072959/https://mdpi-res.com/d_attachment/sensors/sensors-22-02436/article_deploy/sensors-22-02436.pdf?version=1647936195" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/66/84/6684839cafd98bc0b0cde6326674ef4a5ad3838c.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/s22072436"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9003338" title="pubmed link"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> pubmed.gov </button> </a>

Microwave Liquid Crystal Enabling Technology for Electronically Steerable Antennas in SATCOM and 5G Millimeter-Wave Systems

Rolf Jakoby, Alexander Gaebler, Christian Weickhmann
<span title="2020-06-16">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/3mrc5eqrxbd25gqpgrtad576x4" style="color: black;">Crystals</a> </i> &nbsp;
These MLC phase shifter stacks are fabricated in a standard Liquid Crystal Display (LCD) process for manufacturing low-cost large-scale ESAs, featuring single- and multiple-beam steering with very low  ...  With a modular concept and hybrid analog/digital architecture, these smart antennas are flexible in size to meet the specific requirements for operating in satellite ground and user terminals, but also  ...  Thus, Kymeta has demonstrated a flat LC-metamaterial surface antenna in a satellite communication setup [248] [249] [250] [251] , where a first lab-scale demonstrator was already presented in 2010 by  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/cryst10060514">doi:10.3390/cryst10060514</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/xrvbcbsknvgfdlkyx7kfr7zwue">fatcat:xrvbcbsknvgfdlkyx7kfr7zwue</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200623235848/https://res.mdpi.com/d_attachment/crystals/crystals-10-00514/article_deploy/crystals-10-00514.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/b2/b9/b2b9b45f25014c619e6992ca0b556cae4cbe5f2b.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/cryst10060514"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>