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Optimization of Low Site Density Area for 4G Network in Urban City

Hajiar Yuliana, Sofyan Basuki, Salita Ulitia Prini
2021 Jurnal Elektronika dan Telekomunikasi  
After optimization, the RSRP level below or equal -80 dBm increased from 75.195% to 94.08%.  ...  Furthermore, the percentage calculation for inadequate coverage (below -80 dBm) decreased from 24.816% to 5.931%.  ...  It covered an area of 40.37 km2 and had a coverage signal in this spot is below -90 dBm or -100 population at the 2010 census of 541,177 and the 2020 dBm, we need to optimize this  ... 
doi:10.14203/jet.v21.98-103 fatcat:b772u76gcjei3jb22daz3xszwm

Generation of Land-Clutter Maps for Cognitive Radar Technology [chapter]

Gaspare Galati, Gabriele Pavan
2018 Advances in Intelligent Systems and Computing  
far as land clutter characterization is concerned.  ...  In the frame of the vast literature on measurement and modelling of the echoes from the environment such as land, vegetation, man-made infrastructures (called land clutter or fixed clutter in the radar  ...  It results: a= 0.4793 [dBm/level] and b=107.02 [dBm]. For level 0 the power tends to -107 dBm, 11 dB below the mean noise.  ... 
doi:10.1007/978-3-319-77712-2_141 fatcat:s4ikrk4rqfe4jgtwqrzfdop6o4

Technological aspects of a full 3D cadastral registration

J. E. Stoter, P. J. M. van Oosterom
2005 International Journal of Geographical Information Science  
Technological solutions for both parts are not yet available in commercial Geo-ICT software, and therefore solutions have been investigated, designed and developed (in a Geo-DBMS environment).  ...  In this paper, we present a new conceptual model for a full 3D cadastral registration system.  ...  Rod Pick (of the Queensland Government, Department of Natural Resources and Mines) for providing us with the different data sets needed for the Queensland case study (DTM, parcels, survey documents, land  ... 
doi:10.1080/13658810500106042 fatcat:qcqzmn6p4rdgnh2vollyu565ki

An RFI investigation for setting up a VLBI station below 2.8GHz in Malaysia

Zamri Zainal Abidin, Zainol Abidin Ibrahim, Zulfazli Rosli, Siti Fatin Fathinah Malim, Norsuzian Mohd Anim, Noorkhallaf Noorazlan
2012 New Astronomy  
The measured averaged RFI floor noise levels in these windows are À99.992 (±0.570) dBm, À99.907 (±0.639) dBm, À100.220 (±0.4941) dBm and À100.359 (±0.110) dBm, respectively.  ...  Four frequency windows below 2.8 GHz were chosen for this study and their spectra were measured at four sites.  ...  i e r . c o m / l o c a t e / n e w a s t À99.454 (±3.462) dBm.  ... 
doi:10.1016/j.newast.2011.06.001 fatcat:mso2n6orpreqrlh63axjy4v6xi

The relationship between Bedrock geometry and soil solum at a regional scale

Javad khanifar, Ataallah Khademalrasoul
2020 Zenodo  
MARS modeling showed that there is a remarkable difference between the relationships of DTM and DBM geometry attributes and soil solum and the model fitted based on DBM geometry attributes performs better  ...  In this study, the relationship between geometry attributes of bedrock topography and soil solum in a regional scale was investigated.  ...  The bedrock has been exposed in some areas at earth surface, but in areas it may be more than a thousand meters deep below the surface [6] .  ... 
doi:10.5281/zenodo.5485018 fatcat:tl53fmll6feo7kd34xvnvpirpq

Aircraft installation & operational aspects of the Aeronautical Mobile Airport Communications System (AeroMACS)

Alfonso Malaga, Aloke Roy
2011 2011 Integrated Communications, Navigation, and Surveillance Conference Proceedings  
This paper describes a typical aircraft radio frequency interference environment, analyzes the effect of the AeroMACS transmitter on other onboard receivers and the effect of other onboard transmitters  ...  Approach and landing guidance radios currently are the Instrument Landing System (ILS) consisting of a Localizer receiver and a Glide Slop receiver and GPS Landing System (GLS) which uses a VHF Data Broadcast  ...  For an Average Maximum Transmit Power of 30 dBm/50KHz , the out-of-band emissions should be contained below -20dBm/50KHz or -67 dBm/Hz.  ... 
doi:10.1109/icnsurv.2011.5935380 fatcat:rdftrsjpvvfbze2ekbfqdvcpja

Random walks, diffusion limited aggregation in a wedge, and average conformal maps

Leonard M. Sander, Ellák Somfai
2005 Chaos  
We investigate diffusion-limited aggregation (DLA) in a wedge geometry.  ...  We show that a different, but related, ensemble average, that of the conformal maps associated with random clusters, yields a non-trivial shape which is also not far from the Saffman-Taylor finger.  ...  The computations we discuss below are averages over an ensemble of off-lattice DLA and DBM clusters grown in this way.  ... 
doi:10.1063/1.1876932 pmid:16035911 fatcat:uqljr3mkbrbu3axrmms3o6t6ri

A high-precision millimeter-wave navigation system for indoor and urban environment autonomous vehicles

Adrian Tang, Qun Gu
2013 2013 IEEE MTT-S International Microwave Symposium Digest (MTT)  
This paper presents a mm-wave based navigation system capable of measuring and tracking a vehicle's position with centimeter scale accuracy.  ...  The system uses two 144 GHz transmitters modulated with 13 and 14 MHz tones combined with quasi-optical lenses to establish a mm-wave beam that defines navigational pathway for a vehicle to follow.  ...  Part of this work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.  ... 
doi:10.1109/mwsym.2013.6697326 fatcat:pc37bdstbrhevej6bzjuavgexy

Determination of co-site work conditions of selected wideband radio station by measurement method

Rafal Polak, Piotr Kaniewski, Jan Matuszewski
2020 Radioelectronic Systems Conference 2019  
An advanced frequency planning and the knowledge on the impact of a strong interference signal on the required level of useful signal can have a critical meaning for the radio communication system, especially  ...  An incorrect assignment of frequencies for co-site radios may lead to degradation of communication or even may result in a lack of communication.  ...  The measuring system is shown in the Figure 3 : The level of the interfering signal at the antenna input of the receiving radio (R1) was 15 dBm (43 dBm -28 dB) = 15 dBm (this corresponds to a distance  ... 
doi:10.1117/12.2565749 fatcat:lgrv6nevunheboyzyk2wuw7xhi

A Mobile WSN Sink Node Using Unmanned Aerial Vehicles: Design And Experiment

Huiru Cao, Zhi Yang, Ye-Qian Li
2016 International Journal of Interactive Mobile Technologies  
The communication capacity test results show that when the RF modules operate with a transmission power above 1 dBm and a communication distance below 100 m, the UAV wireless sink node can maintain a high  ...  This experiment proves the feasibility of introducing UAV as a sink node in a clustering WSN.  ...  There is a high risk for fixed-wing UAV controlled landing.  ... 
doi:10.3991/ijim.v10i3.5808 fatcat:l73t56jedfaylp4lrezypqph2u

Spatio-temporal dynamics of a fish spawning aggregation and its fishery in the Gulf of California

Brad Erisman, Octavio Aburto-Oropeza, Charlotte Gonzalez-Abraham, Ismael Mascareñas-Osorio, Marcia Moreno-Báez, Philip A. Hastings
2012 Scientific Reports  
C o r r e s p o n d e n c e a n d re q u e s ts fo r m a te ria ls sh o u ld b e a d d r e s s e d to B.E.  ...  a no-take reserve.  ...  Landings of Gulf corvina were recorded 8 to 1 dbm, and peak landings occurred from 5 to 3 dbm(Figure 3a). Catch per unit effort (CPUE) . -é i m .  ... 
doi:10.1038/srep00284 pmid:22359736 pmcid:PMC3283881 fatcat:eobayfnvp5bo7hqfhxcy2nlh34

Morphological similarities between DBM and a microeconomic model of sprawl

Geoffrey Caruso, Gilles Vuidel, Jean Cavailhès, Pierre Frankhauser, Dominique Peeters, Isabelle Thomas
2010 Journal of Geographical Systems  
They compete on the land market. They travel along a road network to access the CBD. A planner ensures the connectedness and maintenance of the road network.  ...  Our results show morphologies and transition phases that are similar to Dieletric Breakdown Models (DBM).  ...  Towards a link with the DBM It was a real surprise for us to find DBM-like patterns from our economic model.  ... 
doi:10.1007/s10109-010-0131-7 fatcat:427r662qwbhxjebyqw3lqlehhi

Received Signal Strength Indication (RSSI) of 2.4 GHz and 5 GHz Wireless Local Area Network Systems Projected over Land and Sea for Near-Shore Maritime Robot Operations

Brennan Yamamoto, Allison Wong, Peter Joseph Agcanas, Kai Jones, Dominic Gaspar, Raymond Andrade, A Zachary Trimble
2019 Journal of Marine Science and Engineering  
Results show that our 2.4 GHz, 2 m antenna height system received a 2 to 3 dBm path loss when transitioning from over-land to over-seawater (equivalent to a 25 to 40% reduction in range); but increasing  ...  Results show that R remained relatively constant, −0.49 ≤ R ≤ −0.45, for all of the over-land experiments; however, R demonstrated a frequency dependence during the over-seawater experiments, ranging from  ...  A short summary of the previous research most relevant to this work is listed below. In Ref.  ... 
doi:10.3390/jmse7090290 fatcat:wkyoolcu3na4vouai3wzinbeuq

Geographical Analysis of Mobile Network Reception Quality -Signal Strength : A Case Study of Accra Metropolitan Area, Ghana

2021 Civil and Environmental Research  
However there is a considerable concentration of them within the central AMA, accounting for the strong signal strength in areas around Accra Central, Accra Newtown, Kaneshie, Kotobabi, and Adabraka.  ...  to -85 dBm Good -86 dBm to -100 dBm Fair <-100 dBm Poor -110 dBm No Signal Source: CDI 2016 3.0 Analysis and Results 1.  ...  This is depicted by the signal strength below the -100 dBm line. Figure 9 represents the signal strength of TIGO. Interestingly, TIGO appears to have stronger signals in AMA than MTN. .  ... 
doi:10.7176/cer/13-1-05 fatcat:pvrxkrb4mbgy5iq6oggz47q53i

Komodo National Park fiber optic network design and analysis by considering earthquake epicenter

Muhammad Riza Darmawan, Universitas Indonesia, Indonesia, Nurul Aini, Awangga Febian Surya Admaja, Catur Apriono, Universitas Indonesia, Indonesia, Universitas Indonesia, Indonesia, Universitas Indonesia, Indonesia
2021 Matrix: Jurnal Manajemen Teknologi dan Informatika  
The BER value obtained is 5.63 x 10-13, which is still below the parameter threshold of 10-12 with a design that avoids the epicenter of the disaster and a longer route.  ...  One of the critical infrastructures is telecommunications, where the region does not have a direct fiber-optic line.  ...  From [24] explained that transmit power is used 4 dBm, Receiver Sensitivity is used -24 dBm.  ... 
doi:10.31940/matrix.v11i3.162-176 fatcat:jom76gjxcrbojoh7bijablbndq
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