Filters








127,316 Hits in 3.7 sec

Cooperation in massively distributed information spaces [chapter]

Olav W. Bertelsen, Susanne Bødker
ECSCW 2001  
It is concluded that this focus on shoulder to shoulder cooperation has to be supplemented with studies of cooperation through massively distributed information spaces.  ...  Our studies of wastewater treatment plants show how such massively distributed spaces challenge many of the ways that CSCW view common information spaces.  ...  Acknowledgements We owe a special thank to Christina Nielsen who has been cooperating closely with us in developing some of the ideas on which this paper is based.  ... 
doi:10.1007/0-306-48019-0_1 dblp:conf/ecscw/BertelsenB01 fatcat:5wi7bewmtvhjhoclxc6ecrkm4u

Deep Reinforcement Learning Based Massive Access Management for Ultra-Reliable Low-Latency Communications [article]

Helin Yang, Zehui Xiong, Jun Zhao, Dusit Niyato, Chau Yuen, Ruilong Deng
2020 arXiv   pre-print
In addition, transfer learning and cooperative learning mechanisms are employed to enable communication links to work cooperatively in a distributed manner, which enhances the network performance and access  ...  in massive access scenario.  ...  in a distributed cooperative way.  ... 
arXiv:2002.08743v2 fatcat:v5l5kjy6rvgqzn6zrei4x3bze4

Table of contents

2021 IEEE Transactions on Communications  
Ratnarajah 2304 Machine Learning Enabled Preamble Collision Resolution in Distributed Massive MIMO ............................... ......................................................................  ...  Xiang 2518 Cooperative  ... 
doi:10.1109/tcomm.2021.3069652 fatcat:4yjofgm2wbaf5ed5bxtrnfxyja

2018 IndexIEEE Wireless Communications LettersVol. 7

2018 IEEE Wireless Communications Letters  
., +, LWC April 2018 170-173 Distributing Complexity: A New Approach to Antenna Selection for Distributed Massive MIMO.  ...  Adaptive Windowing for ICI Mitigation in Vehicular Communications. Vlachos, E., +, LWC Dec. 2018 974-977 Distributing Complexity: A New Approach to Antenna Selection for Distributed Massive MIMO.  ... 
doi:10.1109/lwc.2018.2888676 fatcat:olfvetmkt5bt3c572e5y76b5pm

Deployment and implementation strategies for massive MIMO in 5G

Berthold Panzner, Wolfgang Zirwas, Stefan Dierks, Mads Lauridsen, Preben Mogensen, Kari Pajukoski, Deshan Miao
2014 2014 IEEE Globecom Workshops (GC Wkshps)  
In particular stand-alone MIMO at a single location, distributed MIMO without cooperation and network MIMO with full cooperation are investigated for varying array configurations.  ...  For implementation of massive MIMO in 5G networks trends in beamforming techniques, mutually coupled subarrays, over the calibration procedure and estimated ADC performance in 2020 time-frame are discussed  ...  ACKNOWLEDGMENT Stefan Dierks is supported by the German Ministry of Education and Research in the framework of an Alexander von Humboldt Professorship.  ... 
doi:10.1109/glocomw.2014.7063455 dblp:conf/globecom/PanznerZDLMPM14 fatcat:iyiix55j4jh47inijazjdhzpgu

Table of contents

2021 IEEE Transactions on Communications  
Hanzo 4585 Networks Popularity and Size-Aware Caching With Cooperative Transmission in Hybrid Microwave/Millimeter Wave Heterogeneous Networks ..........................................................  ...  Koksal 4751 Wireless Communications Optimal Per-Antenna ADC Bit Allocation in Correlated and Cell-Free Massive MIMO .................................. ..................................................  ... 
doi:10.1109/tcomm.2021.3091820 fatcat:ymptkb6ulbau5nrijacliund5e

Distributed Wideband Sensing-based Architecture for Unlicensed Massive IoT Communications [article]

Ghaith Hattab, Danijela Cabric
2018 arXiv   pre-print
Numerical simulations are presented to validate the effectiveness of the proposed distributed algorithms, comparing them to centralized and non-cooperative schemes.  ...  Providing Internet connectivity to a massive number of Internet-of-things (IoT) objects over the unlicensed spectrum requires: (i) identifying a very large number of narrowband channels in a wideband spectrum  ...  CONCLUSIONS Providing massive IoT connectivity in the unlicensed spectrum requires exploring a large pool of narrowband channels and aggressively reusing them over space.  ... 
arXiv:1812.06238v1 fatcat:boxn77evebarzn4oyk5bplejy4

ANALYSIS OF BIG DATA FROM SPACE

J. Tan, B. Osborne
2017 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
Our work will give an interdisciplinary knowledge to space engineers and information engineers.  ...  Massive data have been collected through various space mission. To maximize the investment, the data need to be exploited to the fullest.  ...  Fortunately, advancement of computing and information technology as well as massive data samples from space has made it feasible.  ... 
doi:10.5194/isprs-archives-xlii-2-w7-1367-2017 fatcat:25z72xnnpfcepczwnb6axwkr4m

Distributed massive MIMO: Algorithms, architectures and concept systems

U. Madhow, D. R. Brown, S. Dasgupta, R. Mudumbai
2014 2014 Information Theory and Applications Workshop (ITA)  
We are interested in all-wireless systems which are severely constrained in the amount of information that can be exchanged among the cooperating nodes, in contrast to recent proposals in massive MIMO  ...  Moving such distributed MIMO (DMIMO) systems from the realm of information theory to practice requires synchronization of the cooperating nodes at multiple levels.  ...  Acknowledgements We would like to acknowledge current and past collaborators on the work we have reviewed in this paper.  ... 
doi:10.1109/ita.2014.6804225 dblp:conf/ita/MadhowBDM14 fatcat:3tpcdbmhongb7nmr4ntgn5swwa

An overview of multi-antenna technologies for space-ground integrated networks

Lei Gao, Shuo Zhang, Ziyao Liu, Jinyong Lin, Shuai Wang, Chengwen Xing
2016 Science China Information Sciences  
For future space-ground integrated networks (SGINs), the traditional various kinds of separated information networks will converge to a whole fully connected information network to provide more flexible  ...  Multi-antenna technologies have already achieved a series of great successes in the development of information networks.  ...  Acknowledgements This work was supported in part by National Scientific Foundation of China for Young Scholars (Grant Nos. 61301088, 61301089) .  ... 
doi:10.1007/s11432-016-0588-8 fatcat:2zfpw2cuizgplmgftxcvjou4fe

Information rates of precoding for massive MIMO and base station cooperation in an indoor scenario

Stefan Dierks, Gerhard Kramer, Berthold Panzner, Wolfgang Zirwas
2020 EURASIP Journal on Wireless Communications and Networking  
For the distributed deployment (3) , it is found that using twice as many base station antennas as data streams provides many of the massive MIMO benefits in terms of spectral efficiency and fairness.  ...  The performance of centralized and distributed massive MIMO deployments are studied for simulated indoor office scenarios.  ...  The same performance as a single massive MIMO BS is achieved by distributed BSs with cooperation and fewer antennas.  ... 
doi:10.1186/s13638-019-1636-5 fatcat:w5eye2s6fva2ng3fqjw2uoh25e

Table of contents

2020 IEEE Transactions on Communications  
Bogucka 825 Information Theory An Information Theory of Neuro-Transmission in Multiple-Access Synaptic Channels .................................... ....................................................  ...  Cooperative/Relay Systems 1044 A Continuum Model for Route Optimization in Large-Scale Inhomogeneous Multi-Hop Wireless Networks .......... .............................................................  ... 
doi:10.1109/tcomm.2020.2966940 fatcat:32vdtk4cgjg3rkcle5pn7vuuhy

Enabling massive MIMO systems in the FDD mode thanks to D2D communications

Haifan Yin, Laura Cottatellucci, David Gesbert
2014 2014 48th Asilomar Conference on Signals, Systems and Computers  
We propose novel approaches to design feedback in FDD massive MIMO systems. We exploit synergies between massive MIMO systems and inter-user communications based on D2D.  ...  Two feedback variants are highlighted: 1) cooperative CSI feedback, and 2) cooperative precoder index feedback.  ...  Note, in massive MIMO regime only partial channel information (namely K coefficients per user) is needed to achieve orthogonality between user signals.  ... 
doi:10.1109/acssc.2014.7094528 dblp:conf/acssc/YinCG14 fatcat:zdvigeln4jfovnvp523qms5pdm

Distributed Wideband Spatio-Spectral Sensing for Unlicensed Massive IoT Communications [article]

Ghaith Hattab, Danijela Cabric
2018 arXiv   pre-print
We then develop a distributed spatio-spectral cooperative sensing algorithm that enables each SAP to have local information about the occupancy of the entire spectrum.  ...  In this paper, we propose a dynamic spectrum sensing-based architecture to provide connectivity for a massive number of Internet-of-things (IoT) objects over the unlicensed spectrum.  ...  Different from the distributed sensing proposed in [9] , each SAP may arrive at a different decision as the occupancy of a channel vary over space.  ... 
arXiv:1812.02617v1 fatcat:a6lsbaor2rb2fnnflz7ghnwtxu

Towards Massively Robotized Systems under Spatial Grasp Technology

Peter Simon Sapaty
2016 Journal of computer science and systems biology  
Exemplary scenarios in Spatial Grasp Language for practical tasks oriented on the use of multiple cooperative robotic units operating under unified control provided by the technology are also exhibited  ...  Spatial grasp language SGL allows us to directly move through, observe, and make any actions and decisions in fully distributed environments (whether physical, virtual, executive or combined).  ...  becoming not needed) the distributed information and control resources.  ... 
doi:10.4172/jcsb.1000223 fatcat:rndc2vtrnjdf7pm6fenfsqe26i
« Previous Showing results 1 — 15 out of 127,316 results