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On the impact of antenna correlation on the pilot-data balance in multiple antenna systems

Gabor Fodor, Piergiuseppe Di Marco, Miklos Telek
2015 2015 IEEE International Conference on Communications (ICC)  
In such systems, the problem of transmission power balancing between pilot and data is known to have a large impact on the mean square error (MSE) for the received signal and, consequently, on the achievable  ...  We consider the uplink of a single cell single input multiple output (SIMO) system, in which the mobile stations use intra-cell orthogonal pilots to facilitate uplink channel estimation.  ...  However, none of aforementioned works capture the impact of antenna correlation on the performance of single input multiple output (SIMO) systems.  ... 
doi:10.1109/icc.2015.7248715 dblp:conf/icc/FodorMT15 fatcat:2x5lca3jhfg47pr2t4v2ctkidm

Exploiting Delay Correlation for Multi-Antenna-Assisted High Speed Train Communications [article]

Chunxu Jiao, Zhaoyang Zhang, Huazi Zhang, Liangliang Zhu
2014 arXiv   pre-print
To address this issue, we exploit the delay correlation inherent in the linear spatial-temporal structure of multi-antenna array, based on which the rapid fading channel may be approximated by a virtual  ...  In particular, we formulate the quantitative tradeoff between the two metrics of interest, by adjusting the pilot percentage in each frame.  ...  [3] - [6] research into the design of pilot symbols in various mobile systems.  ... 
arXiv:1403.7322v2 fatcat:ubhxr7nlr5a3rlu6oefsoow3ee

Harvest the potential of massive MIMO with multi-layer techniques

Mingjie Feng, Shiwen Mao
2016 IEEE Network  
Although the massive MIMO system is based on innovations in the physical layer, the upper layer techniques also play important roles in harvesting the performance gains of massive MIMO.  ...  In this article, we begin with an analysis of the benefits and challenges of massive MIMO systems.  ...  To overcome these problems and reap the benefits of MIMO systems, the multiple-user MIMO (MU-MIMO) system was developed, where a base station (BS) with multiple antennas serves a set of single-antenna  ... 
doi:10.1109/mnet.2016.7579025 fatcat:w6fmhw54qzgufa6qiflwow5oba

Using Ray-based Deterministic Simulations for Large-scale System Level Evaluation of a Massive MIMO Network

Mohammed Zahid Aslam
2019 Zenodo  
Due to the large number of antennas at the base station, the system achieves stable channel quality and spatially separable channels to the different users.  ...  The analysis is conducted in a 16-macro-cell network with outdoor and randomly distributed users. It is shown that the array configuration has a large impact on the throughput statistics.  ...  Acknowledgment This work is supported by the European Commission through the H2020-ETN-5Gwireless project under grant 641985.  ... 
doi:10.5281/zenodo.2613577 fatcat:e4mr2wrnhfdzflpvqizbo3ms4e

Large-scale antenna operation in heterogeneous cloud radio access networks: a partial centralization approach

Sangkyu Park, Chan-Byoung Chae, Saewoong Bahk
2015 IEEE wireless communications  
To satisfy the ever-increasing capacity demand and quality of service (QoS) requirements of users, 5G cellular systems will take the form of heterogeneous networks (HetNets) that consist of macro cells  ...  In this article, we discuss the challenging issues of C-RAN based HetNets (H-CRAN), especially with respect to large-scale antenna operation.  ...  rates for the precoder and pilot signal IQ data outweigh that of data symbols and increase with the number of antennas.  ... 
doi:10.1109/mwc.2015.7143324 fatcat:k7a3yamjiveptokkzppa4yrt4e

Pilot assisted channel estimation in MIMO-STBC systems over time-varying fading channels

Emna Ben Slimane, Slaheddine Jarboui, Zouhed Ben Mabrouk, Ammar Bouallegue
2014 2014 12th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)  
In this paper, challenges regarding the provision of channel state information (CSI) in multiple-input multipleoutput (MIMO) systems based on space time block codes (STBC) over slow time-varying Rayleigh  ...  Simulation results indicate that the proposed pilot-assisted MIMO concept provides accurate channel estimates. The impact of Doppler frequency on performance scheme is also investigated by simulation.  ...  SYSTEM MODEL Consider a pilot symbol assisted MIMO system based on STBC orthogonal codes equipped by transmit antennas and one receive antenna as shown in Fig. 1 .  ... 
doi:10.1109/wiopt.2014.6850288 dblp:conf/wiopt/SlimaneJMB14 fatcat:ztggoqgewfhvraadp7bab2c234

User Scheduling and Antenna Topology in Dense Massive MIMO Networks: An Experimental Study

Cheng-Ming Chen, Qing Wang, Abdo Gaber, Andrea P. Guevara, Sofie Pollin
2020 IEEE Transactions on Wireless Communications  
As scheduling comes with a significant pilot overhead, an alternative strategy could minimize user correlation by distributing the antenna elements in space.  ...  Our user scheduling and pilot reduction algorithms are evaluated using system level simulations relying on indoor line-of-sight channel measurements from a 64 antenna base station at 2.61GHz.  ...  Regarding the impact of the antenna topologies on the system performance, we can observe that the corresponding distributed antenna topology in scenario D1 performs the best than other antenna topologies  ... 
doi:10.1109/twc.2020.3001224 fatcat:5tpc4vmiprc6vh2yfpbd3s3fty

A Novel, Balanced, and Energy-Efficient Training Method for Receive Antenna Selection

Vinod Kristem, Neelesh B. Mehta, Andreas F. Molisch
2010 IEEE Transactions on Wireless Communications  
Hence, the transmitter needs to send pilots multiple times to enable the receiver to estimate the channel state of all the antennas and select the best subset.  ...  In receive antenna selection (AS), only signals from a subset of the antennas are processed at any time by the limited number of radio frequency (RF) chains available at the receiver.  ...  While optimal power allocation for pilots and data has been considered for multiple antenna systems in [18] - [21] and for a time division code division multiple access (TD-CDMA) system in [22] , it  ... 
doi:10.1109/twc.2010.072610.090744 fatcat:cjuyrtsahngrzdfa2p3v2vberi

Safeguarding 5G wireless communication networks using physical layer security

Nan Yang, Lifeng Wang, Giovanni Geraci, Maged Elkashlan, Jinhong Yuan, Marco Di Renzo
2015 IEEE Communications Magazine  
Although the impact of antenna correlation on the secrecy performance of conventional MIMO systems has been revealed, e.g.  ...  ANTENNA CORRELATION Antenna correlation is a practical challenge underlying the deployment of massive MIMO systems.  ... 
doi:10.1109/mcom.2015.7081071 fatcat:ow3da4lejzfo3pcjp2s7dpmr6i

Optimal Per-Antenna ADC Bit Allocation in Correlated and Cell-Free Massive MIMO

Daniel Verenzuela, Emil Bjornson, Michail Matthaiou
2021 IEEE Transactions on Communications  
In addition, when including the impact of power consumption in cell-free Massive MIMO with RZF, allocating low values of mixed ADC bit resolutions across the BS antennas can increase the energy efficiency  ...  In particular, the analog-to-digital converters (ADCs) have an important impact on signal distortion and power consumption.  ...  In the minimum pilot distortion case, the optimal HWI allocation seeks to balance the dynamic range of the received pilot signal.  ... 
doi:10.1109/tcomm.2021.3067699 fatcat:nmtblghuizadzda72fcg2kyjxm

Optimal Transmit Power and Antenna Selection to Achieve Energy Efficient and Low Complexity in fifth generation Massive MIMO Systems [article]

Adeeb Salh, Lukman Audah, Nor Shahida Mohd Shah, Qazwan Abdullah, Noorsaliza Abdullah, Jameel Mukred, Shipun Hamzah
2021 arXiv   pre-print
This paper investigates joint antenna selection and optimal transmit power in multi cell massive multiple input multiple output systems.  ...  The pilot interference and activated transmit antenna selection plays an essential role in maximizing energy efficiency.  ...  ACKNOWLEDGMENTS This research is supported by Universiti Tun Hussein Onn Malaysia (UTHM) under the Multisciplinary Research (MDR) Grant votH243, and part by the Ministry of Higher Education Malaysia under  ... 
arXiv:2106.03664v1 fatcat:qbko4b45hjderosjn7xug24lci

A Novel Energy-Efficient Training Method for Receive Antenna Selection

V. Kristem, N. B. Mehta, A. F. Molisch
2010 2010 IEEE International Conference on Communications  
Receive antenna selection (AS), in which only a subset of antennas receive simultaneously at any time, requires the transmitter to send pilots multiple times so that the receiver can acquire channel state  ...  In this paper, we propose a novel training method uniquely tailored for AS. Using one extra pilot symbol, accurate channel estimates get generated for the antenna subset that actually receives data.  ...  Figure 5 studies the impact of D on the asymptotic energy gain.  ... 
doi:10.1109/icc.2010.5502805 dblp:conf/icc/KristemMM10 fatcat:rrgl7x3ahzcvjllk455rqk4pta

A Simple Model of the UHF Cross-Polar Terrestrial Channel for DVBNGH

Peter Moss, Tuck Yeen Poon
2011 International Journal of Sensors Wireless Communications and Control  
A number of practical designs for antennas suitable for a handheld terminal were included in the trial and all test data was obtained via these devices.  ...  Following the campaign, analysis of the data has produced a simple model for both outdoor and indoor scenarios of the antenna-inclusive 2-by-2 channel.  ...  of Finland for providing the signal capture system, Digita of Finland for providing the transmission facility and of course the various providers of the application antennas.  ... 
doi:10.2174/2210327911101010057 fatcat:hifvuesapfauhcsmpwycc7noxe


Aaishwarya Soni, Mrs. Megha Soni
2021 IJARCCE  
This consequence is enhanced due to the rising number of antennas in massive multiple-input multiple-output (MIMO) systems.  ...  With the arrival of the fifth generation of wireless networks, with millions of additional base stations and billions of connected devices, the demand for energy-efficient system design and operation will  ...  This issue was enhanced because of the increasing number of antennas in massive multiple-input multiple-output (MIMO) systems.  ... 
doi:10.17148/ijarcce.2021.105148 fatcat:s6knnsrvgrh4voikbonygklrie

Cell-Free Massive MIMO: A New Next-Generation Paradigm

Jiayi Zhang, Jiayi Zhang, Shuaifei Chen, Yan Lin, Jiakang Zheng, Bo Ai, Lajos Hanzo
2019 IEEE Access  
Cell-free (CF) massive multiple-input-multiple-output (MIMO) systems have a large number of individually controllable antennas distributed over a wide area for simultaneously serving a small number of  ...  Furthermore, we quantify the advantages of CF massive MIMO systems in terms of their energy-and costefficiency.  ...  ) systems enable the base station (BS) to serve a single UE with the aid of multiple antennas.  ... 
doi:10.1109/access.2019.2930208 fatcat:l3y4h6j3uzh6fhnysvtvhx7mdy
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