310 Hits in 10.6 sec

Jamming Beamforming: A New Attack Vector in Jamming IEEE 802.11ac Networks

Gaurav Patwardhan, David Thuente
2014 2014 IEEE Military Communications Conference  
We show that jamming the beamforming mechanism is very effective in reducing the aggregate throughput of the targeted Wireless LAN system (WLAN).  ...  This SDR provides the flexibility for implementation to jam targeted packets in the beamforming process.  ...  Mihail Sichitiu for teaching me the wireless domain in an intuitive and an informative manner without whom I would not have developed a deep appreciation for the design of wireless systems.  ... 
doi:10.1109/milcom.2014.253 fatcat:3syhzqmg5jcyhiznzr42qlmbcy

Massive MIMO Techniques for 5G and Beyond—Opportunities and Challenges

David Borges, Paulo Montezuma, Rui Dinis, Marko Beko
2021 Electronics  
The purpose of this article is to describe the most acknowledged transmission techniques for massive MIMO systems and to analyze some of the most promising ones and identify existing problems and limitations  ...  State-of-the-art work considers massive Multiple-Input Multiple-Output (massive MIMO) as the key technology for 5G and beyond.  ...  Introduction Wireless communications and especially mobile communication systems are growing at an incredible pace.  ... 
doi:10.3390/electronics10141667 fatcat:3qgwtcfctvesbhmktr3goxxk4y

Transition technologies towards 6G networks

Thiago R. Raddo, Simon Rommel, Bruno Cimoli, Chris Vagionas, Diego Perez-Galacho, Evangelos Pikasis, Evangelos Grivas, Konstantinos Ntontin, Michael Katsikis, Dimitrios Kritharidis, Eugenio Ruggeri, Izabela Spaleniak (+6 others)
2021 EURASIP Journal on Wireless Communications and Networking  
Finally, some of these technologies are showcased in an experimental demonstration of a mobile fronthaul system based on millimeter 5G NR OFDM signaling compliant with 3GPP Rel. 15.  ...  Thus, these technologies will be needed for fully integrated, heterogeneous solutions to benefit from hardware commoditization and softwarization.  ...  Acknowledgements The authors would like to thank all the partners of both the blueSPACE and 5G-PHOS consortia with especial thanks to Siklu, Eulambia, ICOM, Optoscribe and UPV.  ... 
doi:10.1186/s13638-021-01973-9 fatcat:t3rezsdfp5gcfekuntv6n5cg5i

A Real Time 4X4 Mimo-Ofdm Sdr For Wireless Networking Research

Jesse Chen, Weijun Zhu, Babak Daneshrad, Jatin Bhatia, Hun-Seok Kim, Karim Mohammed, Sandeep Sasi, Anish Shah
2007 Zenodo  
Publication in the conference proceedings of EUSIPCO, Poznan, Poland, 2007  ...  SDR Highlights and Features Our efforts produced a real time MIMO OFDM testbed that can satisfy the needs for both the cognitive radio community and the traditional wireless networking community.  ...  CONCLUSION A highly flexible, real-time 4x4 MIMO-OFDM SDR for wireless networking research has been presented which is capable of over 300 unique modes of operation.  ... 
doi:10.5281/zenodo.40438 fatcat:avijfq4bjzbptemw7tw2dzyksq

Adaptive feedback compression for MIMO networks

Xiufeng Xie, Xinyu Zhang, Karthikeyan Sundaresan
2013 Proceedings of the 19th annual international conference on Mobile computing & networking - MobiCom '13  
MIMO beamforming technology can scale wireless data rate proportionally with the number of antennas.  ...  This simple principle faces many practical challenges, e.g., a huge search space for adaption, estimation or prediction of the impact of compression on network throughput, and the coupling of different  ...  We have implemented a full-fledged MIMO-OFDM communication module on WARP, following the 802.11n/ac specification for SU-and MU-MIMO networks (Sec. 5 provides a detailed description of our implementation  ... 
doi:10.1145/2500423.2500446 dblp:conf/mobicom/XieZS13 fatcat:ihwzdow5jrh6fc4cfobbb6pfne

Implementation, integration, and verification of MIMAX WLAN modem

Z. Stamenkovic, K. Tittelbach-Helmrich, M. Wickert, J. Ibanez, S. Ruiz, G. Dimosthenous
2011 6th International Workshop on Reconfigurable Communication-Centric Systems-on-Chip (ReCoSoC)  
This paper describes the concept, implementation, integration, and verification of an RF-MIMO wireless LAN system called MIMAX.  ...  The correctness of the front-end specific MIMAX control functions like beamforming weights handling and setting has been verified.  ...  ACKNOWLEDGMENT The research leading to these results has received funding from the European Community's Seventh Framework Programme FP7 (2007 -2013) under the grant agreement no. 213952 also referred as  ... 
doi:10.1109/recosoc.2011.5981523 dblp:conf/recosoc/StamenkovicTWIRD11 fatcat:mkgh5zwmzrfubpiyakm2hvd2oq

Channel Estimation For Millimeter-Wave Very Large Mimo

André Almeida, Daniel Araújo, Johan Axnäs, Joao Mota
2014 Zenodo  
Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal, 2014  ...  The authors would like to thank Robert Baldemair and Dennis Hui for fruitful discussions during the development of this work.  ...  This has a direct impact on the hardware implementation for VL-MIMO systems.  ... 
doi:10.5281/zenodo.43968 fatcat:tjwd22kd2jd6bo76egcf2yelbm

Design of large polyphase filters in the Quadratic Residue Number System

Gian Carlo Cardarilli, Alberto Nannarelli, Yann Oster, Massimo Petricca, Marco Re
2010 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers  
The algorithm is applicable in several existing wireless communication systems (SC-FDMA, MC-CDMA, MIMO-OFDM).  ...  One practical problem that arises is the complexity and expense of the hardware needed to implement MIMO radar.  ... 
doi:10.1109/acssc.2010.5757589 fatcat:ccxnu5owr5fyrcjcqukumerueq

Differentiated Statistical QoS Guarantees for Real-Time CBR Services in Broadband Wireless Access Networks

Hong Zhou, Zhongwei Zhang
2010 2010 International Conference on Computational Intelligence and Software Engineering  
Wu 30393 Two-Level Spreading OFDM System Using Beamforming and Adaptive Code Assignment for Wireless Communication Xiaotao Feng 30397 A Low Complexity Power Allocation Approach for OFDM Systems  ...  Zhigang Li 31342 The Research and Implementation of the Hardware Platform for MIMO Channel Measurement Lianqing Ji 31353 Research on the Radiation Field of Wide-Band Leaky Coaxial Cable Linlin  ... 
doi:10.1109/wicom.2010.5601439 fatcat:kaereulmjzhbdpknj727a4vuri

MIMO Communication Measurements in Small Cell Scenarios at 28 GHz

Joerg Eisenbeis, Magnus Tingulstad, Nicolai Kern, Zsolt Kollar, Jerzy Kowalewski, Pablo Ramos Lopez, Thomas Zwick
2020 IEEE Transactions on Antennas and Propagation  
However, the proper design of those massive MIMO systems first requires a deep understanding of the underlying wireless propagation channel.  ...  Therefore, we present a fully-digital MIMO measurement system operating around 28 GHz. The system enables to take fast subsequent snapshots of the complex MIMO channel matrix.  ...  ACKNOWLEDGMENT The authors thank A. Lipp, A. Gallego, M. Nonnenmacher, and R. Vester for their excellent support in building up the demonstrator.  ... 
doi:10.1109/tap.2020.3044394 fatcat:ekzj4pbgczcnndndzvuxyiyy5u

Taxonomy and Performance Evaluation of Hybrid Beamforming for 5G and Beyond Systems

Mohamed Rihan, Tarek Abed Soliman, Chen Xu, Lei Huang, Moawad I. Dessouky
2020 IEEE Access  
Increasing demand for higher data-rate wireless connectivity with lower latency is fueling the explorations of millimeter-wave (mmWave) spectrum and massive MIMO communications.  ...  Hybrid beamforming is one of the most promising energy and cost-effective approaches to realize mmWave massive MIMO communications with lower complexity and smaller training overhead.  ...  In practice, it is easier to implement a switched beamforming system than an adaptive beamforming system.  ... 
doi:10.1109/access.2020.2984548 fatcat:tkd3utgslramjdl7ua3smwcnhu

2020 Index IEEE Transactions on Vehicular Technology Vol. 69

2020 IEEE Transactions on Vehicular Technology  
+ Check author entry for coauthors ami-mFading Channels With Integer and Non-Integerm; TVT March 2020 2785-2801 Hoang, T.M., Tran, X.N., Nguyen, B.C., and Dung, L.T., On the Performance of MIMO Full-Duplex  ...  Impact of Molecular Re-Radiation on the MIMO Capacity in High-Frequency Bands; TVT Dec. 2020 15458-15471 Hoseinnezhad, R., see Yi, W., TVT April 2020 4104-4118 Hossain, E., see Guruacharya, S., TVT  ...  ., +, TVT Dec. 2020 16294-16298 Communication systems Joint MIMO Communication and MIMO Radar Under Different Practical Waveform Constraints.  ... 
doi:10.1109/tvt.2021.3055470 fatcat:536l4pgnufhixneoa3a3dibdma

2019 Index IEEE Transactions on Communications Vol. 67

2019 IEEE Transactions on Communications  
Karat, N.S., +, TCOMM Aug. 2019 5264-5274 Explicit Formulas for the Weight Enumerators of Some Classes of Deletion Correcting Codes.  ...  ., +, TCOMM June 2019 4035-4046 On the Performance of LMS Communication With Hardware Impairments and Interference.  ...  S Satellite antennas On the Performance of LMS  ... 
doi:10.1109/tcomm.2019.2963622 fatcat:qd6so3reavde3eiukfknmpbfsu

Radio Resource Management in Joint Radar and Communication: A Comprehensive Survey [article]

Nguyen Cong Luong, Xiao Lu, Dinh Thai Hoang, Dusit Niyato, Dong In Kim
2021 arXiv   pre-print
In particular, sharing the spectrum imposes the interference caused by the systems, and sharing the hardware platform and energy resource complicates the design of the JRC transmitter and compromises the  ...  First, we give fundamental concepts of JRC, important performance metrics used in JRC systems, and applications of the JRC systems.  ...  for DFRC Systems Reference System Objective Implementation CSI Frequency Communication & radar channels [102] MT-SU-DFRC Minimization of the weighted sum of the communication and radar beamforming  ... 
arXiv:2007.13146v3 fatcat:aq5ti5uruvgczpfcrtulcfehf4

An Overview of Signal Processing Techniques for Terahertz Communications [article]

Hadi Sarieddeen, Mohamed-Slim Alouini, Tareq Y.Al-Naffouri
2021 arXiv   pre-print
Terahertz (THz)-band communications are a key enabler for future-generation wireless communications systems that promise to integrate a wide range of data-demanding applications.  ...  This tutorial overviews these techniques, emphasizing ultra-massive multiple-input multiple-output (UM-MIMO) systems and reconfigurable intelligent surfaces, vital for overcoming the distance problem at  ...  This promising realization enables the practical implementation of compact THz systems in small footprints.  ... 
arXiv:2005.13176v3 fatcat:mxqxsp55jjg7ddw5gca2x7dq3a
« Previous Showing results 1 — 15 out of 310 results