scholarly journals DESIGN AND PERFORMANCE OF MOBILE PHONE JAMMER

2020 ◽  
Vol 6 (12) ◽  
pp. 1-5
Author(s):  
Priti Y. Umratkar ◽  
Harshali Chalfe ◽  
S. K. Totade
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Mobile Communication ◽  
Cell Phone ◽  
Base Station ◽  
Cellular Phones ◽  
Coverage Area ◽  
Medical Centers ◽  
A Cell ◽  
And Performance

The continuously use of mobile phone can be attributed to it can use in any places and thus have become one of the most widely used devices in mobile communication which makes it so important in our lives. The convenience and portability of cellphones has made it possible to be carried everywhere. e.g Churches, lecture halls, medical centers etc. Its benefit can create disturbance in some places when there is continuous beeping or ringtones of cell phones which becomes annoying when such noise is disturbance in areas where silence is required or the use or of mobile phone is restricted or prohibited like Libraries and Study rooms A mobile phone jammer is an instrument used to prevent cellular phones from receiving signals from base station. It is a device that transmit signal on the same frequency at which the GSM system operates, the jamming success when the mobile phones in the area where the jammer is located are disabled. The mobile phone jammer unit is intended for blocking all mobile phone types within designated indoor areas. The mobile Phone Jammer is a 'plug and play' unit, its installation is quick and its operation is easy. Once the mobile Phone Jammer is operating, all mobile phones present within the jamming coverage area are blocked, and cellular activity in the immediate surroundings (including incoming and outgoing calls, SMS, pictures sending, etc.) is jammer. This paper focuses on the design of a cell phone jammer to prevent the usage of mobile communication in restricted areas without interfering with the communication channels outside its range.

scholarly journals Selective Mobile Communication within a Coverage Area Bounded by Radiating Cables

2015 ◽  
Vol 2015 ◽  
pp. 1-9
Author(s):  
Hatim Behairy ◽  
Waleed Alrobian ◽  
Adnan Alghammas ◽  
Amr Alasaad ◽  
Brian Suter ◽  
...  
Keyword(s):  
Mobile Phone ◽  
Mobile Devices ◽  
Mobile Phones ◽  
Mobile Communication ◽  
Mobile Services ◽  
Directional Antennas ◽  
Base Station ◽  
Coverage Area ◽  
Precise Control ◽  
Novel Technique

It is often desirable to control mobile phone services in areas where complete silence is either expected or mandatory, including schools, places of worship, hospitals, and prisons. In contrast to conventional techniques, such as jammers or Faraday cages, we present a novel technique to selectively control mobile phone services within a desired area. Our solution enables the area’s keeper to allow mobile phones on a whitelist to freely use mobile services without disruption while denying services to all other mobile phones that are within the boundaries of the desired area to be controlled. Our solution uses a base station controller to identify all mobile devices located within the area to be controlled, while an antenna is placed inside the area to attract all mobile devices in the area to connect to the base station controller. In previous work, we proposed a system that uses directional antennas for the attraction technique. In this work, we show that replacement of the directional antennas with a leaky feeder antenna enables more accurate control of mobile phone services in and around the area to be controlled. Simulations and experiments of the leaky feeder technique confirm its precise control of mobile phone services within the desired areas.

Effect of cell phone use on salivary components; a review of literature

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Fateme Arbabi Kalati ◽  
Tahereh Nosratzehi
Keyword(s):  
Mobile Phone ◽  
Salivary Glands ◽  
Mobile Phones ◽  
Cell Phone ◽  
Close Contact ◽  
Cell Phone Use ◽  
Microbial Invasion ◽  
Immune Histochemistry ◽  
A Cell ◽  
Harmful Effects

Abstract Mobile phones have been increasingly used in the past decade and have become a cultural instrument. There is a great concern over the harmful effects of electromagnetic and radiofrequency waves as well as microwaves generated by mobile phones and their telecommunication stations on health. The saliva plays an important role in preserving oral homeostasis as the first defensive line against the microbial invasion which protects oral mucosa mechanically and immunologically. A search was run in Pub med, Goggle Scholar, Medline, and Web of Science databases using the following keywords: cell phone, mobile phone, antioxidant profile, saliva, oxidative stress, interleukin, and inflammation. Sixty-five published articles were identified. Studies on the use of cell phones as educational aids, the use of immune histochemistry on salivary glands, or the evaluation of saliva in individuals with specific conditions, such as the use of orthodontic brackets, were excluded. In addition, duplicate articles are eliminated, and finally, 14 articles were included in the present study. Nowadays mobile phone is very popular, causing concern about the effect it has on people’s health. Parotid salivary glands are in close contact with a cell phone while talking with the phone and the possibility of being affected by them; so this study was designed to investigate the effect of cell phone use on salivary components.

scholarly journals Deep Learning applied to the handoff of cellular systems: a survey

2019 ◽  
Author(s):  
Federico Aguirre
Keyword(s):  
Deep Learning ◽  
Cell Phone ◽  
State Of The Art ◽  
Base Station ◽  
Cellular Systems ◽  
Coverage Area ◽  
Learning Techniques ◽  
A Cell ◽  
Spatio Temporal ◽  
Phone User

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'; min-height: 15.0px} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px 'Times New Roman'} span.s1 {font: 12.0px 'Times New Roman'} <p><br></p> <p> <b>Mobility is a key aspect in current cellular networks, allowing users to access the provided services almost anywhere. When a user transitions from a base station’s coverage area to another cell being serviced by another station, a handoff process takes place, where resources are released in the first base station, and allocated in the second for the purpose of servicing the user. Predicting the future location of a cell phone user allows the handoff process to be optimized. This optimization allows for a better utilization of the available resources, regarding bot the transmitted power and the frequency allocation, resulting in less amount of wasted power in unwanted directions and the possibility of reusing frequencies in a single base station. To achieve this goal, Deep Learning techniques are proposed, which have proven to be efficient tools for predicting and detecting patterns. The purpose of this paper is to give an overview of the state of the art in Deep Learning techniques for making spatio-temporal predictions, which could be used to optimize the handoff process in cellular systems. </b></p>

scholarly journals EFFEK SAMPING PENGGUNAAN PONSEL

2015 ◽  
Vol 17 (4) ◽  
Author(s):  
Enny Enny
Keyword(s):  
Electromagnetic Radiation ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Electromagnetic Waves ◽  
Cell Phone ◽  
Cell Phones ◽  
Mobile Users ◽  
A Cell ◽  
The Impact ◽  
Cell Phone Radiation

Enny, in this paper explain that many mobile phone users around the us, but only a portion of the concerned about the dangers of cell phones. This paper was compiled to determine the impact and solutions of cell phone radiation. Mobile phones emit electromagnetic waves which will affect the surrounding environment. Based on existing information, cell phone radiation is thought to cause cancer. Waves emitted from mobile phones over the air is causing electromagnetic radiation. Potential disrubtion of health consequences of radiation electromagnetic field has become an issue which examined till now, so found a variety of health disorders as a result of mobile phone users that includes the impact of mild and severe impact. Experts have discovered some efforts to minimize the effects of cell phone radiation on health of mobile phone users. Every user should know the dangers of mobile phone users. Radiation caused cell phone not only arise when used, but when putting a cell phone in your Pocket can also be exposed to any radiation. Therefore, mobile users need to know how to use a cell phone. Users should pay attention to the level of radiation caused by cell phones, so that the influence of electromagnetic radiation on health can be scaled down for mobile users. Keywords: side effects of cell phone use

scholarly journals Deep Learning applied to the handoff of cellular systems: a survey

2019 ◽  
Author(s):  
Federico Aguirre
Keyword(s):  
Deep Learning ◽  
Cell Phone ◽  
State Of The Art ◽  
Base Station ◽  
Cellular Systems ◽  
Coverage Area ◽  
Learning Techniques ◽  
A Cell ◽  
Spatio Temporal ◽  
Phone User

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Times New Roman'; min-height: 15.0px} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px 'Times New Roman'} span.s1 {font: 12.0px 'Times New Roman'} <p><br></p> <p> <b>Mobility is a key aspect in current cellular networks, allowing users to access the provided services almost anywhere. When a user transitions from a base station’s coverage area to another cell being serviced by another station, a handoff process takes place, where resources are released in the first base station, and allocated in the second for the purpose of servicing the user. Predicting the future location of a cell phone user allows the handoff process to be optimized. This optimization allows for a better utilization of the available resources, regarding bot the transmitted power and the frequency allocation, resulting in less amount of wasted power in unwanted directions and the possibility of reusing frequencies in a single base station. To achieve this goal, Deep Learning techniques are proposed, which have proven to be efficient tools for predicting and detecting patterns. The purpose of this paper is to give an overview of the state of the art in Deep Learning techniques for making spatio-temporal predictions, which could be used to optimize the handoff process in cellular systems. </b></p>

scholarly journals A Study to Assess the Prevalence of Nomophobia among School Going Children

2021 ◽  
pp. 205-211
Author(s):  
Binu Joe ◽  
C. C. Linson
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
School Children ◽  
Cell Phone ◽  
Family Relationship ◽  
Smart Phone ◽  
Signs And Symptoms ◽  
Smart Phones ◽  
The Family ◽  
A Cell

Our lives have been drastically altered by smart phones. Nowadays, we can't do anything without our phones. We must analyse ourselves or think clearly in order to determine whether a cell phone is a boon or a curse. We are all a part of technoculture. Schoolchildren have also been immersed in this aspect of techno-culture during the previous two years. We must properly prepare technology because each technology has both positive and negative elements. Overuse of mobile phones is extremely dangerous to one's health. Students need to have mobile phone to attend classes from the comforts of their home. Smart phone has become the basic necessity of school children daily life and students are slowly coping with this new method of technology for their academic progress.  Over usage of mobile phone leads to such an extent that children comes across a situation where they cannot live without the use of mobile phone. Such a situation when students start to have fear when they cannot access their smart phones is known has nomophobia. The present study was carried among the school going children in the Surendernagar district of Gujarat. The findings of the study reveal that overall 52.58 % of the study subjects had moderate level of Nomophobia. Around 32.58 % of the study subjects had mild level of nomophobia. 14.40 of the school children had severe level of nomophobia, while only 0.44% had no signs and symptoms of Nomophobia. Mobile phones have lead to disturbance in the family relationship.

Women, Empowerment, and Mobile Phones in the Developing World

2020 ◽  
pp. 528-544
Author(s):  
Laura Stark
Keyword(s):  
Developing Countries ◽  
Mobile Phone ◽  
Social Status ◽  
Mobile Phones ◽  
Mobile Communication ◽  
Recent Literature ◽  
Mobile Telephony ◽  
Women Empowerment ◽  
Gender And Development ◽  
And Control

This chapter surveys and analyzes recent literature on mobile communication to examine its relationship to gender and development, more specifically how women in developing countries use and are impacted by mobile phones. Focusing on issues of power, agency, and social status, the chapter reviews how mobile telephony has been found to be implicated in patriarchal bargaining in different societies, how privacy and control are enabled through it, what benefits have been shown to accrue to women using mobile phones, and what barriers, limitations, and disadvantages of mobile use exist for women and why. The conclusion urges more gender-disaggregated analysis of mobile phone impact and use and offers policy and design recommendations based on the overview and discussion.

The Effects of Telematics on Driver Distraction

2002 ◽  
Vol 46 (22) ◽  
pp. 1868-1870 ◽  
Author(s):  
Patrick Siebert ◽  
Mustapha Mouloua ◽  
Kendra Burns ◽  
Jennifer Marino ◽  
Lora Scagliola ◽  
...  
Keyword(s):  
Secondary Task ◽  
Cell Phone ◽  
Driving Simulator ◽  
Systems Design ◽  
Driver Distraction ◽  
Cellular Phones ◽  
Driver Safety ◽  
A Cell ◽  
Driving Task ◽  
Simulated Driving Task

This study used both cellular phones and analogue radio to measure driver distraction and workload in a low fidelity driving simulator. Thirty-four participants performed a simulated driving task while using either a cell phone or a radio in conjunction with a secondary task assessing their spare attentional capacity. The results showed that more lane deviations were made during the cell phone and radio tuning use than both of the pre-allocation and Post-allocation phases. The secondary task errors were also higher during both the cell phone and radio tuning allocation phase than the pre-allocation and post-allocation phases. These findings indicate the greater workload load levels associated with the use of telemetric devices. These findings have major implications for driver safety and telemetric systems design.

Understanding women’s mobile phone use in rural Kenya: An affordance-based approach

2018 ◽  
Vol 7 (1) ◽  
pp. 94-110 ◽  
Author(s):  
Susan Wyche ◽  
Nightingale Simiyu ◽  
Martha E. Othieno
Keyword(s):  
Mobile Phone ◽  
Information And Communication Technologies ◽  
Mobile Phones ◽  
Mobile Communication ◽  
Communication Technologies ◽  
Mobile Phone Use ◽  
Information And Communication ◽  
Rural Kenya ◽  
Pertinent Information ◽  
Definition Of

Increases in mobile phone ownership and Internet access throughout Africa continue to motivate initiatives to use information and communication technologies (ICTs)—in particular, mobile phones—to address long-standing socioeconomic problems in the “developing world.” While it is generally recognized that mobile phones may help to address these problems by providing pertinent information, less widely known is exactly how (and if) a handset’s human–computer interface—that is, its software and hardware design—supports this form of communication. The concept of “affordances” has long been used to answer such questions. In this paper, we use Hartson’s definition of affordances to qualitatively investigate rural Kenyan women’s interactions with their mobile phones. Our detailed analysis provides empirically grounded answers to questions about the cognitive, physical, and sensory affordances of handsets used in our field sites and how they support and/or constrain mobile communication. We then discuss the implications of our findings: in particular, how this affordance-based approach draws attention to mobile phones’ design features and to the context in which they and their users are embedded—a focus which suggests new design and research opportunities in mobile communication.

Social Resilience in Action

2014 ◽  
pp. 297-315 ◽  
Author(s):  
Adriana Braga ◽  
Robert K. Logan
Keyword(s):  
Mobile Phone ◽  
Interpersonal Communication ◽  
Mobile Phones ◽  
Mobile Technology ◽  
Cell Phone ◽  
Social Resilience ◽  
Cell Phone Use ◽  
Mobile Phone Technology ◽  
The Social ◽  
Complex Picture

Recent statistics about the mobile phone market in Brazil state that for every 100 inhabitants there are 130 mobile phones. Despite the euphoria that those numbers bring to business, the social uses of mobile technology in Brazil tells a lot about Brazilian society and culture itself, and show a more complex picture than merely a marketing phenomenon. The authors examine subversive cell phone use in Brazil against the background of the cell phone use worldwide and the social implications of that cell phone use. As soon as a technology is implemented in a culture, it is possible to observe uses that were not intended by the inventors or producers of that technology. People create different strategies to take advantage of the new resource. Using social interaction theories and an ethnographic approach in the natural setting of cell phone use in Brazil, the authors observed how people use the mobile phone technology for interpersonal communication. This chapter addresses three subversive uses of mobile technology, namely, i.) strategies of mobile phone coding; ii) SIM card management; and iii) criminal uses of mobile phones.

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