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CU-LTE: Spectrally-efficient and fair coexistence between LTE and Wi-Fi in unlicensed bands

Zhangyu Guan, Tommaso Melodia
2016 IEEE INFOCOM 2016 - The 35th Annual IEEE International Conference on Computer Communications  
To address this challenge, we propose for the first time a cognitive coexistence scheme to enable spectrum sharing between U-LTE and Wi-Fi networks, referred to as CU-LTE.  ...  However, this extension is by no means straightforward, primarily because the radio resource management schemes used by LTE and by systems already deployed in unlicensed bands are incompatible.  ...  To study how the coexisting LTE and Wi-Fi networks interact with each other in spectrum sharing based on the coexistence architecture, next we solve the resulting fairness constrained network utility maximization  ... 
doi:10.1109/infocom.2016.7524589 dblp:conf/infocom/GuanM16 fatcat:fjxvjdilvzekxgsetgekn3cogi

Towards Harmonious Coexistence in the Unlicensed Spectrum: Rational Cooperation of Operators

Sunghwan Bae, Hongseok Kim
2017 Sensors  
In this article, we investigate the behaviors of multiple LTE operators along with the deployment of WiFi networks in the unlicensed spectrum from both short-and long-term points of view.  ...  Specifically, LTE-Advanced (LTE-A) is looking to achieve spectrum integration through coexistence with multi-radio access technology (RAT) systems in the same unlicensed bands with both licensed-assisted  ...  Hongseok Kim led the reasearch project and supervised the activities as the corresponding author. All authors discussed the results and approved the publication.  ... 
doi:10.3390/s17102432 pmid:29064434 pmcid:PMC5676699 fatcat:mzwmhlkwwfagpfzkcayvg2yime

ORLA/OLAA: Orthogonal Coexistence of LAA and WiFi in Unlicensed Spectrum

Andres Garcia-Saavedra, Paul Patras, Victor Valls, Xavier Costa-Perez, Douglas J. Leith
2018 IEEE/ACM Transactions on Networking  
Future mobile networks will exploit unlicensed spectrum to boost capacity and meet growing user demands costeffectively.  ...  We further show that long U-LTE frames incur up to 92% throughput losses on WiFi when using 3GPP LAA, whilst ORLA/OLAA sustain >200% gains at no cost, even in the presence of non-saturated WiFi and/or  ...  In §IV and §V we introduce optimal LBT transmission policies that simultaneously accomplish fair resource sharing with WiFi WNs and throughput maximization.  ... 
doi:10.1109/tnet.2018.2876590 fatcat:ll5yac6vy5edlhv6wd5fk5xls4

ORLA/OLAA: Orthogonal Coexistence of LAA and WiFi in Unlicensed Spectrum [article]

Andres Garcia-Saavedra, Paul Patras, Victor Valls, Xavier Costa-Perez,, Douglas J. Leith
2018 arXiv   pre-print
The 3GPP has recently defined a Licensed-Assisted Access (LAA) scheme to enable global Unlicensed LTE (U-LTE) deployment, aiming at (i) ensuring fair coexistence with incumbent WiFi networks, i.e., impacting  ...  We derive two LAA optimal transmission policies, ORLA and OLAA, that maximize LAA throughput in both asynchronous and synchronous (i.e., with alignment to licensed anchor frame boundaries) modes of operation  ...  In §IV and §V we introduce optimal LBT transmission policies that simultaneously accomplish fair resource sharing with WiFi WNs and throughput maximization.  ... 
arXiv:1802.01360v1 fatcat:yr4buwsagrct3hoyoaom2cio4a

Coexistence Gaps in Space: Cross-Technology Interference-Nulling for Improving LTE-U/WiFi Coexistence [article]

Suzan Bayhan and Anatolij Zubow and Adam Wolisz
2017 arXiv   pre-print
To avoid the foreseeable spectrum crunch, LTE operators have started to explore the option to directly use 5 GHz unlicensed spectrum band being used by IEEE 802.11 (WiFi).  ...  However, as LTE is not designed with shared spectrum access in mind, there is a major issue of coexistence with WiFi networks.  ...  ACKNOWLEDGMENT This work has been supported by the European Union's Horizon 2020 research and innovation program under grant agreement No 645274 (WiSHFUL project).  ... 
arXiv:1710.07927v1 fatcat:grqmj2exnvfi3cna6vtxgqdtpq

Performance-Fairness Trade-off for Wi-Fi and LTE-LAA Coexistence

Rabbia Saleem, Sheeraz A. Alvi, Salman Durrani
2021 IEEE Access  
However, unlicensed spectrum sharing between Wi-Fi and LAA requires fair resource allocation with specific performance guarantees for both sets of Wi-Fi and LAA stations.  ...  Long Term Evolution (LTE)-License Assisted Access (LAA), which leverages unlicensed resource sharing with the Wi-Fi network, is a promising technique to address the spectrum scarcity issue in present and  ...  INTRODUCTION Recently wireless communication industry has turned its attention towards utilizing the unlicensed spectrum as an efficient means to address the spectrum scarcity and rapidly growing demand  ... 
doi:10.1109/access.2021.3075252 fatcat:pb3bcutsnndzfacnrid3mxwonu

Applications of Intelligent Radio Technologies in Unlicensed Cellular Networks - A Survey

2021 KSII Transactions on Internet and Information Systems  
To tackle the challenges of unlicensed spectrum networks in 4G/5G/B5G systems, a lot of works have been done, focusing on using Machine Learning (ML) to support resource allocation in LTE-LAA/NR-U and  ...  Unlicensed spectrum cellular networks have been proposed as a solution in response to severe spectrum shortage.  ...  One of the major concerns about the LTE-U standardization is whether LTE-U will be able to share the unlicensed spectrum with IEEE 802.11 users in a fair manner [1] .  ... 
doi:10.3837/tiis.2021.07.020 fatcat:uzb3gqtsezcgzehvjige3vgiwq

When Machine Learning Meets Spectrum Sharing Security: Methodologies and Challenges [article]

Qun Wang, Haijian Sun, Rose Qingyang Hu, Arupjyoti Bhuyan
2022 arXiv   pre-print
The exponential growth of internet connected systems has generated numerous challenges, such as spectrum shortage issues, which require efficient spectrum sharing (SS) solutions.  ...  based database assisted SS networks, ML based LTE-U networks, ML based ambient backscatter networks, and other ML based SS solutions.  ...  The coexistence of LTE-U and WiFi in an unlicensed spectrum [59]. Fig. 11 . 11 Fig. 11. AmBC network.  ... 
arXiv:2201.04677v1 fatcat:gb73bku37fatncamax67buwkea

Hybrid Spectrum Sharing in mmWave Cellular Networks

Mattia Rebato, Federico Boccardi, Marco Mezzavilla, Sundeep Rangan, Michele Zorzi
2017 IEEE Transactions on Cognitive Communications and Networking  
In particular, we consider the case of a hybrid spectrum scheme between a mmWave band with exclusive access and a mmWave band where spectrum is pooled between multiple operators.  ...  using the same band and the need to license mmWave bands to multiple mobile operators.  ...  LWA is a framework standardized by 3GPP aiming at providing a tight radio-level interaction between LTE and WiFi.  ... 
doi:10.1109/tccn.2017.2707551 fatcat:pzr5dngg3bei5lzllvx575cu6e

Scalable MAC protocol for D2D communication for future 5G networks

Bushra Ismaiel, Mehran Abolhasan, David Smith, Wei Ni, Daniel Franklin
2017 2017 14th IEEE Annual Consumer Communications & Networking Conference (CCNC)  
The key topics of this chapter includes: unlicensed 5GHz band; LTE-Unlicensed (LTE-U), LTE-License Assisted Access (LTE- LAA), LTE WiFi Link Aggregation (LWA), and MuLTEfire and further applying D2D  ...  This MuLTEfire operates in unlicensed or shared spectrum and has the highest throughput and has more chance to capture the channel and transmit the data.  ... 
doi:10.1109/ccnc.2017.7983165 dblp:conf/ccnc/IsmaielASNF17 fatcat:uwgvsysl7bevphrytgmxdwpxga

A Comprehensive Survey of Spectrum Sharing Schemes from a Standardization and Implementation Perspective [article]

Mohammad Parvini, Amir Hossein Zarif, Ali Nouruzi, Nader Mokari, Mohammad Reza Javan, Bijan Abbasi, Amir Ghasemi, Halim Yanikomeroglu
2022 arXiv   pre-print
is, whether they are implemented to operate in licensed bands (e.g., licensed shared access (LSA), spectrum access system (SAS), and dynamic spectrum sharing (DSS)) or unlicensed bands (e.g., LTE-unlicensed  ...  (LTE-U), licensed assisted access (LAA), MulteFire, and new radio-unlicensed (NR-U)).  ...  In [176] , the authors proposed spectrum sharing between LTE-U and Wi-Fi on the basis of RL to maximize LTE-U utilization.  ... 
arXiv:2203.11125v1 fatcat:h2mjxhjfgfe5dgk6lb46i2f6cu

Network-Assisted Outband D2D-Clustering in 5G Cellular Networks: Theory and Practice

Arash Asadi, Vincenzo Mancuso
2017 IEEE Transactions on Mobile Computing  
We introduce a channel-opportunistic architecture that enhances the user experience in terms of throughput, fairness, and energy efficiency.  ...  Within the cluster, the unlicensed spectrum is utilized to relay traffic.  ...  A cluster consists of several users that form a group and all intra-cluster communications occur over a WLAN in unlicensed spectrum (e.g., WiFi Direct or mm-Wave IEEE 802.11ad).  ... 
doi:10.1109/tmc.2016.2621041 fatcat:jkw5ciap4ndnlnap3kn723s6rm

In-Band Device-to-Device Communication in OFDMA Cellular Networks: A Survey and Challenges

Pavel Mach, Zdenek Becvar, Tomas Vanek
2015 IEEE Communications Surveys and Tutorials  
in terms of spectral and energy efficiency.  ...  The common use of priory D2D discovery is a sharing of a specific content between two devices.  ...  ACKNOWLEDGMENT This work has been performed in the framework of the FP7 project TROPIC IST-318784 STP, which is funded by the European Community.  ... 
doi:10.1109/comst.2015.2447036 fatcat:otla3xvx4nek3acwev6cxovc2y

Wi-Fi Meets ML: A Survey on Improving IEEE 802.11 Performance with Machine Learning [article]

Szymon Szott, Katarzyna Kosek-Szott, Piotr Gawłowicz, Jorge Torres Gómez, Boris Bellalta, Anatolij Zubow, Falko Dressler
2022 arXiv   pre-print
The complexity is further increased in the case of dense deployments and coexistence in shared bands.  ...  These technical innovations, including the plethora of configuration parameters, are making next-generation WLANs exceedingly complex as the dependencies between parameters and their joint optimization  ...  sharing in 5G [39] and in future 6G [40] networks; • maximize the potential of unlicensed bands for Industry 4.0 applications [41] .  ... 
arXiv:2109.04786v3 fatcat:ny55qfhsnfduzcxyve5mylpr2m

On Quality-of-Service Provisioning in IEEE 802.11ax WLANs

Der-Jiunn Deng, Shao-Yu Lien, Jorden Lee, Kwang-Cheng Chen
2016 IEEE Access  
the collaboration between cellular and WLANs, and given the trend of 5G cellular over unlicensed bands.  ...  INDEX TERMS Quality of service, IEEE 802.11ax, LTE-LAA, 5G, 5G-unlicensed, medium access control, wireless local area networks, WiFi, heterogeneous networks. 6086 2169-3536  ...  Jiayin Zhang, for the fruitful and useful technical discussions, which are of great help on preparing the paper. Thanks to Prof.  ... 
doi:10.1109/access.2016.2602281 fatcat:2wi7hxlqbvgmrfvicftc5r6bne
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