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Performance Model for Orthogonal Sub Channel in Noise-Limited Environment

Jyrki T.J. Penttinen, Francesco Calabrese, Kari Niemela, David Valerdi, Maria Pilar Molina
2010 2010 6th International Conference on Wireless and Mobile Communications  
Based on the post-processing and analysis of the performance data as a function of the OSC penetration, a generic model to estimate the effect of OSC on the GSM capacity gain was developed.  ...  In addition, a set of test cases was carried out in a GSM network in order to evaluate the radio performance of OSC in terms of the carrier per noise level.  ...  in the estimation of the OSC performance based on the quality measurements of the GSM network before the OSC is activated.  ... 
doi:10.1109/icwmc.2010.75 fatcat:35zml3l5jbdbtnbh2x45e44bcm

Throughput in cooperative wireless networks

Diego Armando Giral Ramirez, Cesar Hernandez, Fredy Martinez
2020 Bulletin of Electrical Engineering and Informatics  
In cognitive networks, users must make intelligent decisions based on spectrum variation and actions taken by other users.  ...  The analysis is carried out based on throughput, depending on the class of service and the type of traffic.  ...  In methods based in AHP, judgment matrices are needed to carry out comparative assessments that determine the level of relative importance of each combined pair of criteria, sub-criteria and alternatives  ... 
doi:10.11591/eei.v9i2.2025 fatcat:qmtiigpeabdrpnpjexci27udji

Analysis and assessment software for multi-user collaborative cognitive radio networks

Diego Giral, Cesar Hernandez, Fredy Martinez
2022 International Journal of Power Electronics and Drive Systems (IJPEDS)  
The simulation tools used in cognitive radio networks (CRN) are undergoing an active process.  ...  Performance metrics include bandwidth, throughput level, number of failed handoffs, number of total handoffs, number of handoffs with interference, number of anticipated handoffs and number of perfect  ...  ACKNOWLEDGMENTS The authors would like to thank the Center for Research and Scientific Development of Universidad Distrital Francisco José de Caldas and Minciencias for supporting in this investigative  ... 
doi:10.11591/ijece.v12i4.pp4507-4520 fatcat:rvdhkswrjbdddl4z7cubxyav2a

The Evolution of Base Station Antennas for Mobile Communications

C. Beckman, B. Lindmark
2007 2007 International Conference on Electromagnetics in Advanced Applications  
In the first part the fundamental parameters of a base station antenna are discussed in the context of radio network design.  ...  This paper gives a general overview of the design of base station antennas for mobile communications.  ...  However, in mobile telephony the capacity of each cell is limited by interference from the adjacent cells.  ... 
doi:10.1109/iceaa.2007.4387244 fatcat:3hv5le5555bkbmiavf3iyn6syu

UMTS radio network evaluation and optimization beyond snapshots

Andreas Eisenblätter, Hans-Florian Geerdes, Thorsten Koch, Alexander Martin, Roland Wessäly
2005 Mathematical Methods of Operations Research  
In contrast to second generation GSM networks, interference plays a paramount role in the design of third generation radio networks.  ...  A recent compact characterization of a radio network through a linear equation system allows to assess cell load and interference.  ...  In order to obtain an estimation of the network load based on the analysis of only one equation system, we derive the coupling matrices and the downlink traffic noise power vector on the basis of average  ... 
doi:10.1007/s00186-005-0002-z fatcat:lql5dsy66rhgffk273cdxhtace

Spectrum Sensing and Signal Identification with Deep Learning based on Spectral Correlation Function [article]

Kürşat Tekbıyık, Özkan Akbunar, Ali Rıza Ekti, Ali Görçin, Güneş Karabulut Kurt, Khalid A. Qaraqe
2021 arXiv   pre-print
Finally, the measurement-based dataset which is utilized to validate the method is shared for the purposes of reproduction of the results and further research and development.  ...  Implementation of the method on the measured overthe-air real-world signals in cellular bands indicates important performance gains when compared to the signal classifying deep learning networks available  ...  The analysis based on t-SNE results show that SCF better separates signal vectors in space. The results of this study are in line with the previous analysis [27] . B.  ... 
arXiv:2003.08359v4 fatcat:twarraxdyzdwzdw63qgvy3dxga

ACO vs EAs for solving a real-world frequency assignment problem in GSM networks

Francisco Luna, Christian Blum, Enrique Alba, Antonio J. Nebro
2007 Proceedings of the 9th annual conference on Genetic and evolutionary computation - GECCO '07  
In this work we present a new mathematical formulation of the problem in which the frequency plans are evaluated by using accurate interference information coming from a real GSM network.  ...  Frequency planning is a very important task for current GSM operators.  ...  The more accurate the measure of the interference in a given GSM network, the higher the quality of the frequency plan that can be computed for this network.  ... 
doi:10.1145/1276958.1276972 dblp:conf/gecco/LunaBAN07 fatcat:2zduvgktazbufba7qhb3uungym

Towards 5th generation cellular mobile networks

Jian A. Zhang, Peng Cheng, Andrew R. Weily, Y. Jay Guo
2014 Australian Journal of Telecommunications and the Digital Economy  
We review the evolution of international standards for cellular mobile networks in the last two decades, describe how the network layout has been migrating from rigid cellular architecture to random and  ...  In this article, we show the path of the evolution in both standards and techniques, and provide our vision for the future of the cellular networks.  ...  Pilot contamination results in corruption of precoding matrices used by base stations and causes significant intercell interference.  ... 
doi:10.7790/ajtde.v2n2.34 fatcat:43ixpaqptzdybafodcglgnakwq

Multivariable algorithm for dynamic channel selection in cognitive radio networks

Cesar Hernandez, C. Salgado, H. López, E. Rodriguez-Colina
2015 EURASIP Journal on Wireless Communications and Networking  
The spectral handoff is important in cognitive wireless networks to ensure an adequate quality of service and performance for secondary user communications.  ...  This band represents more disputes in accessing spectral opportunities than other radio frequency (RF) bands because of the high demand for mobile phone communications.  ...  Acknowledgements This work has been partially funded by the Center for Research and Scientific Development of the District University "Francisco José de Caldas", (Bogota, Colombia). Author details  ... 
doi:10.1186/s13638-015-0445-8 fatcat:ltp22puf2vhuphwhi2vdyo5o7i

Reliable broadband wireless communication for high speed trains using baseband cloud

Qinglin Luo, Wei Fang, Jinsong Wu, Qingchun Chen
2012 EURASIP Journal on Wireless Communications and Networking  
at compensating the inter-carrier interference (ICI) caused by severe Doppler frequency shift due to mobility.  ...  Numerical analysis shows that the new architecture and corresponding algorithms are suitable for high-speed train communication and can provide a continuous data rate of more than 100 megabits per second  ...  Acknowledgements The authors would like to acknowledge the contributions of our colleague Dr.  ... 
doi:10.1186/1687-1499-2012-285 fatcat:2xvqqryayvahrczpnhgigiigeu

Guest Editorial Special Issue on "THz Communications and Networking"

Ian F. Akyildiz, Tetsuya Kawanishi, Wolfgang Gerstacker, Xiaodai Dong, Aydin Babakhani
2021 IEEE Journal on Selected Areas in Communications  
From 1999 to 2002, she was with Nortel Networks, Ottawa, ON, Canada, and worked on the base transceiver design of the third-generation (3G) mobile communication systems.  ...  A mathematical model based on measured data is offered to investigate THz band channel properties in vehicular scenarios.  ... 
doi:10.1109/jsac.2021.3071914 fatcat:ly6hsf4ui5b33fnfcadvitxi2a

Location Estimation via Support Vector Regression

Zhi-li Wu, Chun-hung Li, Joseph Kee-yin Ng, Karl R.p.h. Leung
2007 IEEE Transactions on Mobile Computing  
Location estimation using the Global System for Mobile communication (GSM) is an emerging application that infers the location of the mobile receiver from multiple signals measurements.  ...  The proposed support vector regression approach shows promising performances, especially in terrains with local variations in environmental factors.  ...  The density of buildings together with the narrowness of streets create a lot of occlusion and reflection that interfere with the measurement of the GSM power levels.  ... 
doi:10.1109/tmc.2007.42 fatcat:cvjfw5ckkfernne3pxozormire

Optimal zonal wavelet-based ECG data compression for a mobile telecardiology system

R.S.H. Istepanian, A.A. Petrosian
2000 IEEE Transactions on Information Technology in Biomedicine  
The hybrid implementation issues of this wavelet method with a GSM-based mobile telecardiology system are also introduced.  ...  The performance of the mobile system with compressed ECG data segments selected from the MIT-BIH arrhythmia data base is evaluated in terms of bit rrror rate (BER), percent rms difference (PRD), and visual  ...  In this study, seven wavelet matrices of 128 128 in size each were selected for best performance analysis.  ... 
doi:10.1109/4233.870030 pmid:11026590 fatcat:4s2aei5zofgydikgnywxzud6v4

Discussion on: "Development and Experimental Verification of a Mobile Client-Centric Networked Controlled System"

Paul Otanez
2005 European Journal of Control  
As explained in the paper, GSPR transmissions have a lower priority than GSM-based voice calls.  ...  Although this approach simplifies analysis, it does not consider the effects of the controller on the network.  ...  The GPRS (over GSM)-based NCS used in Ref.  ... 
doi:10.1016/s0947-3580(05)71059-1 fatcat:zcxk5z3ymncdtoxg5joez4d6n4

Cell Oscillation Resolution in Mobility Profile Building [article]

Shafqat Ali Shad, Enhong Chen, Tengfei Bao
2013 arXiv   pre-print
Mobility profile building became extensively examined area in Location based services (LBS) through extraction of significant locations.  ...  Mobility traces are recorded under three reference positioning systems that are Satellite based i.e. GPS, Network based i.e. GSM and Local positioning i.e. WLAN, RFID, IrDA.  ...  Later this information can be used for inferring similar users based on their mobility profile similarity measure.  ... 
arXiv:1206.5795v4 fatcat:kncupbtusrhmtin4btbpyeayuy
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