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IEEE 802.11ax: High-efficiency WLANS

Boris Bellalta
<span title="">2016</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kg4jy3hqtrbk7opmhgzlagufnu" style="color: black;">IEEE wireless communications</a> </i> &nbsp;
Finally, we discuss some of the network-level functionalities that are required to fully improve the user experience in next-generation WLANs and note their relation with other on-going IEEE 802.11 amendments  ...  IEEE 802.11ax-2019 will replace both IEEE 802.11n-2009 and IEEE 802.11ac-2013 as the next high-throughput Wireless Local Area Network (WLAN) amendment.  ...  1 Introduction Partly because of their own success, next-generation WLANs face two main challenges.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/mwc.2016.7422404">doi:10.1109/mwc.2016.7422404</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/mxcd4ctvrvbb5imd23bferbyhu">fatcat:mxcd4ctvrvbb5imd23bferbyhu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200913170840/https://arxiv.org/pdf/1501.01496v3.pdf" title="fulltext PDF download [not primary version]" 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] <span style="color: #f43e3e;">&#10033;</span> <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/d1/63/d16336feb2d656e7ef6ef828d7d44f4a7980ceae.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/mwc.2016.7422404"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

A Distributed Multi-User MIMO MAC Protocol for Wireless Local Area Networks

Lin X. Cai, Hangguan Shan, Weihua Zhuang, Xuemin Shen, Jon W. Mark, Zongxin Wang
<span title="">2008</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/lgc2un3ucjf3fgwb7o42q3s7d4" style="color: black;">IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference</a> </i> &nbsp;
By exploiting the multi-user degree of freedom in a MIMO system to allow the access point (AP) to communicate with multiple users in the same frequency band simultaneously, the proposed MU MAC can effectively  ...  minimize the AP-bottleneck effect in legacy WLANs.  ...  We have proposed a distributed multi-user MIMO MAC protocol to exploit the multi-user degree of freedom in a MIMO system.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/glocom.2008.ecp.952">doi:10.1109/glocom.2008.ecp.952</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/globecom/CaiSZSMW08.html">dblp:conf/globecom/CaiSZSMW08</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jz4xz5tbt5aitiynzrzmrv2lrm">fatcat:jz4xz5tbt5aitiynzrzmrv2lrm</a> </span>
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MU-MIMO MAC Protocols for Wireless Local Area Networks: A Survey

Ruizhi Liao, Boris Bellalta, Miquel Oliver, Zhisheng Niu
<span title="">2016</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/b4kxurpz5vbn7gog6wq32vliii" style="color: black;">IEEE Communications Surveys and Tutorials</a> </i> &nbsp;
Multi-user Multiple-Input and Multiple-Output (MU-MIMO), an advanced form of MIMO, has gained attention due to its huge potential in improving the performance of WLANs.  ...  After that, the most representative MU-MIMO MAC proposals in the literature are overviewed by benchmarking their MAC procedures and examining the key components, such as the channel state information acquisition  ...  IEEE 802.11 standards/amendments are given in Table I IEEE 802.11ad [13] , another VHT WLAN amendment, will operate in the 60 GHz band and focus on multi-gigabits per second data transmissions in  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/comst.2014.2377373">doi:10.1109/comst.2014.2377373</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/b2s5lgc4pvbatbi2e27z6adedu">fatcat:b2s5lgc4pvbatbi2e27z6adedu</a> </span>
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Wireless LAN in paired radio spectrum with downlink-uplink separation

Stefan Schmid, Stefan Mangold, Thomas R. Gross
<span title="">2014</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/xu3nssyjojgz5moccrokj4jz7q" style="color: black;">2014 IEEE Wireless Communications and Networking Conference (WCNC)</a> </i> &nbsp;
In the future, because of the growing demand for wireless communication services, WLANs might not only operate in unlicensed but also in licensed spectrum.  ...  in unlicensed (single-channel) spectrum.  ...  A special focus has been around multi-radio (multi-channel) architectures, for example in [10] - [12] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/wcnc.2014.6953092">doi:10.1109/wcnc.2014.6953092</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/wcnc/SchmidMG14.html">dblp:conf/wcnc/SchmidMG14</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/crmbjgpu6vaxxhhf5fhbi23fki">fatcat:crmbjgpu6vaxxhhf5fhbi23fki</a> </span>
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MCCA: A high-throughput MAC strategy for next-generation WLANs

Seongkwan Kim, Sunghyun Choi, Youngsoo Kim, Kyunghun Jang
<span title="">2008</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kg4jy3hqtrbk7opmhgzlagufnu" style="color: black;">IEEE wireless communications</a> </i> &nbsp;
In this article, we propose a new MAC protocol for the next-generation high-speed WLANs.  ...  The proposed MAC, called MCCA (Multi-user polling Controlled Channel Access), is composed of two components: (1) MLA (Multi-Layer frame Aggregation), which performs aggregations at both MAC and PHY; and  ...  CONCLUDING REMARKS In this article, we present a new high-throughput MAC protocol, called MCCA, for the next-generation high-speed WLANs. MCCA is composed of two components, namely, MLA and MUP.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/mwc.2008.4454702">doi:10.1109/mwc.2008.4454702</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gg32pwkgdjhqnbmh33fkr6xd7m">fatcat:gg32pwkgdjhqnbmh33fkr6xd7m</a> </span>
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DCF/DSDMA: Enhanced DCF with SDMA downlink transmissions for WLANs

Ruizhi Liao, Boris Bellalta, Cristina Cano, Miquel Oliver
<span title="">2011</span> <i title="IEEE"> 2011 Baltic Congress on Future Internet and Communications </i> &nbsp;
This paper presents an enhanced MAC protocol for Downlink SDMA in WLANs where only the Access Point is equipped with multiple antennas.  ...  Multi-user MIMO is a promising technology to enhance the performance of WLANs.  ...  In downlink SDMA WLANs, the channel access, scheduling and CSI acquisition are the three most important issues that need to be addressed in the design of the MAC protocol.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/bcfic-riga.2011.5733223">doi:10.1109/bcfic-riga.2011.5733223</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/5ty7s5ssavaq5o3o373sdg2rke">fatcat:5ty7s5ssavaq5o3o373sdg2rke</a> </span>
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Uni-MUMAC: a unified down/up-link MU-MIMO MAC protocol for IEEE 802.11ac WLANs

Ruizhi Liao, Boris Bellalta, Trang Minh Cao, Jaume Barcelo, Miquel Oliver
<span title="2014-11-30">2014</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/wpzihu2scrb7nntl4ywanbryai" style="color: black;">Wireless networks</a> </i> &nbsp;
In the uplink, we extend the traditional one round channel access contention to two rounds, which coordinate multiple STAs to transmit frames to the AP simultaneously. 2-nd round Contention Window (CW2nd  ...  Specifically, in the downlink, we implement an IEEE 802.11ac-compliant MU-MIMO transmission scheme to allow the AP to simultaneously send frames to a group of STAs.  ...  Kartsakli et al. in [10] consider an infrastructured WLAN and propose four multi-user scheduling schemes to simultaneously transmit frames to STAs.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s11276-014-0861-4">doi:10.1007/s11276-014-0861-4</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gmav4dk3enhqrhrwuewtpqspdu">fatcat:gmav4dk3enhqrhrwuewtpqspdu</a> </span>
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Multi-user MAC Protocol for WLANs in MmWave Massive MIMO Systems with Mobile Edge Computing

Yifeng Zhao, Xueting Xu, Yuhan Su, Lianfeng Huang, Xiaojiang Du, Nadra Guizani
<span title="">2019</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/q7qi7j4ckfac7ehf3mjbso4hne" style="color: black;">IEEE Access</a> </i> &nbsp;
Hence, exploring the potential of mmWave MIMO systems for WLAN could play a significant role in improving network performance, especially throughput.  ...  In this paper, we introduce mmWave and massive MIMO into traditional WLAN with MEC, which enables a large portion of spatial resources to be allocated among users, and mitigates inter-user interference  ...  Therefore, it is also critical for the next generation WLAN systems to provide faster uploading and downloading and higher throughput in dense environments to solve the mismatch between computing and transmission  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2019.2952174">doi:10.1109/access.2019.2952174</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/vkgayueavbhkdbygba7gy3roai">fatcat:vkgayueavbhkdbygba7gy3roai</a> </span>
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On Quality-of-Service Provisioning in IEEE 802.11ax WLANs

Der-Jiunn Deng, Shao-Yu Lien, Jorden Lee, Kwang-Cheng Chen
<span title="">2016</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/q7qi7j4ckfac7ehf3mjbso4hne" style="color: black;">IEEE Access</a> </i> &nbsp;
A revolutionary effort to seek fundamental improvement of 802.11, known as IEEE 802.11ax, has been approved to deliver the next-generation wireless local area network (WLAN) technologies.  ...  In WLANs, medium access control protocol is the key component that enables efficient sharing the common radio channel while satisfying the quality of service (QoS) requirements for multimedia applications  ...  In particular downlink (DL) multi-user (MU) MIMO technology (up to four clients) has been adopted to improve the spectrum efficiency by allowing simultaneous transmissions of multiple data frames to different  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2016.2602281">doi:10.1109/access.2016.2602281</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/2wi7hxlqbvgmrfvicftc5r6bne">fatcat:2wi7hxlqbvgmrfvicftc5r6bne</a> </span>
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A Survey of Resource Allocation Techniques for Cellular Network's Operation in the Unlicensed Band

Mohammedhusen Manekiya, Abhinav Kumar, Ashish Yadav, Massimo Donelli
<span title="2020-09-07">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ikdpfme5h5egvnwtvvtjrnntyy" style="color: black;">Electronics</a> </i> &nbsp;
The key channel access mechanisms for cellular network's operation in the unlicensed bands are discussed. The various channel selection techniques are explored and their operation explained.  ...  With an ever increasing demand for data, better and efficient spectrum operation has become crucial in cellular networks.  ...  as well as multi-channel operation.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/electronics9091464">doi:10.3390/electronics9091464</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/sypt3whq45genofkl3thihnjtq">fatcat:sypt3whq45genofkl3thihnjtq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201012155312/https://res.mdpi.com/d_attachment/electronics/electronics-09-01464/article_deploy/electronics-09-01464.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/9d/dd/9dddd9b4c4083e11522362cccb9984aedc34f638.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/electronics9091464"> <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>

OmniVoice

Nabeel Ahmed, Srinivasan Keshav, Konstantina Papagiannaki
<span title="">2011</span> <i title="ACM Press"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/c4l4x7lntbdcrigp6kd7u2itqq" style="color: black;">Proceedings of the Twelfth ACM International Symposium on Mobile Ad Hoc Networking and Computing - MobiHoc &#39;11</a> </i> &nbsp;
OmniVoice meets the QoS requirements for VoIP in all operating scenarios and is unaffected by interference from non-VoIP traffic.  ...  The controller minimizes interference with the help of an interference map that models potential exposed and hidden terminal conflicts in the WLAN, while allowing for the serialization of transmissions  ...  VoIP Performance in a Multi-Channel System To study VoIP performance in a typical multi-channel system, we assign APs in our testbed to orthogonal channels.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2107502.2107509">doi:10.1145/2107502.2107509</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/mobihoc/AhmedKP11.html">dblp:conf/mobihoc/AhmedKP11</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/s2pucwypfzcgroqbwbfucy3mue">fatcat:s2pucwypfzcgroqbwbfucy3mue</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20110828210949/http://blizzard.cs.uwaterloo.ca/keshav/home/Papers/data/11/omnivoice.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/bb/09/bb095d31248930049c5ea519834173b179168c6b.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/2107502.2107509"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> acm.org </button> </a>

QoS-based Joint User Selection and Scheduling for MU-MIMO WLANs

Dasari Srinivasa Rao, Victor Dhason Berlin Hency
<span title="2017-12-20">2017</span> <i title="National Institute of Telecommunications"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kdvz6bupzffwja76itztn23cyu" style="color: black;">Journal of Telecommunications and Information Technology</a> </i> &nbsp;
Generally, user scheduling is done with the acquisition of Channel State Information (CSI) from all the users. In MU-MIMO based WLANs, the number of CSI request increases with the number of users.  ...  The shift in Multi-User Multiple Input Multiple Output (MU-MIMO) has gained attention due to its wide support in very high throughput Wireless Local Area Networks (WLANs) such as the 802.11ac.  ...  MU-MIMO is the key revolutionary technology for all next generation WLANs [3] and cellular networks [4] . The performance of these networks depends mainly on proper user selection and scheduling.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.26636/jtit.2017.112217">doi:10.26636/jtit.2017.112217</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/koc3hgtzlncrhk3aeaqdi5gew4">fatcat:koc3hgtzlncrhk3aeaqdi5gew4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180602191909/https://www.itl.waw.pl/czasopisma/JTIT/2017/4/17.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/29/7d/297d5dbe17684bcd7f151adb97e0473efdcee715.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.26636/jtit.2017.112217"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Multi-destination Aggregation with Binary Symmetric Broadcast Channel Based Coding in 802.11 WLANs [article]

Xiaomin Chen, Douglas Leith
<span title="2017-12-07">2017</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
In this paper we consider the potential benefits of adopting a binary symmetric broadcast channel paradigm for multi-destination aggregation in 802.11 WLANs, as opposed to a more conventional packet erasure  ...  channel paradigm.  ...  Although multi-destination aggregation allows simultaneous transmission to multiple receivers, the channel quality between the transmitter and each receiver is generally different, and thus the optimal  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1712.02718v1">arXiv:1712.02718v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ricubj36rba4rc5csmgpmeeofa">fatcat:ricubj36rba4rc5csmgpmeeofa</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200906010745/https://arxiv.org/pdf/1712.02718v1.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/36/00/3600bddf39f0413da646f5c85508fbf25258e72f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1712.02718v1" 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>

IEEE 802.11ax: Challenges and Requirements for Future High Efficiency WiFi

M. Shahwaiz Afaqui, Eduard Garcia-Villegas, Elena Lopez-Aguilera
<span title="">2017</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kg4jy3hqtrbk7opmhgzlagufnu" style="color: black;">IEEE wireless communications</a> </i> &nbsp;
This has resulted in massive WLAN deployment in geographically limited environments that encompass multiple Overlapping Basic Service Set (OBSS).  ...  The popularity of IEEE 802.11 based Wireless Local Area Networks (WLAN) has increased significantly in recent years because of their ability to provide increased mobility, flexibility, ease of use along  ...  This group intends to develop methods to provide longer range operation of Wi-Fi on the 2.4 GHz band. This new development poses a new coexistence challenge for next generation of WLANs.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/mwc.2016.1600089wc">doi:10.1109/mwc.2016.1600089wc</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/i5s77pas3nfnpdzfdhkib6qnhe">fatcat:i5s77pas3nfnpdzfdhkib6qnhe</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200305074030/https://upcommons.upc.edu/bitstream/handle/2117/116255/PDF%20file%20of%20the%20manuscript.pdf;jsessionid=DA62D70CE6009B378E9DA24212E444F2?sequence=1" 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/83/ad/83ad5b1c523a19547fd844fd3776fd739d5159e0.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/mwc.2016.1600089wc"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Synergizing Wireless Communication Technologies to Improve Internet Downloading Experiences

Ting-Yu Lin, Tai-Yi Huang, Chia-Fu Hsu
<span title="">2014</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5jlmyrayyrdazh5awdlsoec77q" style="color: black;">IEEE transactions on computers</a> </i> &nbsp;
Considering downloading traffic from the internet, in this paper, we propose a synergized framework (SF), consisting of heterogeneous wireless communication technologies, multi-mode (multi-interface) mobile  ...  , and fixed wireless hosts capable of operating over multiple orthogonal (non-overlapping) radio channels, to realize better downloading experiences for users via cooperation between different wireless  ...  Two interfaces (operating on non-overlapping Channel 1 and Channel 2) are available at nodes , , , and , making possible simultaneous communications over both channels.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tc.2013.147">doi:10.1109/tc.2013.147</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/pqjomkii5fd3hpxo6afs6f63wy">fatcat:pqjomkii5fd3hpxo6afs6f63wy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170829121858/http://www.dece.nctu.edu.tw/files/writing/8240_405b35fb.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/03/01/030172b4446f796ae65538c14c2a63cec527b6ab.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tc.2013.147"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>
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