نتایج جستجو برای: شبکه gsm
تعداد نتایج: 40065 فیلتر نتایج به سال:
Voice quality assessment is an emergent aspect in Global System for Mobile Communications (GSM) network. The evolution of GSM also able in principle to take benefit from end to end services.GSM network inherently include elements such as noisy intermediate equipments that degrade the quality of transmitted voice signal.GSM network presents an alternate method to improve quality and customer exp...
This paper explains the cause of nonlinearity in floor attenuation hither to left unexplained. The performance degradation occurring in air interface for GSM signals is quantitatively analysed using the concept of Radiating Columns of buildings. The signal levels were measured using Wireless Network Optimising Drive Test Tool (E6474A of Agilent Technologies). The measurements were taken in refl...
This paper describes an architecture and protocol for making anonymous mobile conference calls. A number of examples exist where multiple users may wish to communicate in an anonymous manner, such as anonymous virtual support groups (e.g Alcoholics Anonymous). Anonymous group identification schemes coupled with the novel idea of Virtual Numbers, allows for identification to a conference call fa...
<p>Global positioning system (GPS) tracker is an innovative technology that able to track the position of vehicle using global satellite system. In this paper, design derived from and for mobile communication (GSM) interface with use Arduino Uno board as platform proposed presented. Technology in Arduino, GSM, GPS studied.GPS module receives coordinates satellite. The are sent users form ...
Spatial modulation (SM) is a transmission scheme where only one transmit antenna is active at any time instant. It thus reduces interchannel interference (ICI) and receiver complexity over traditional multi-antenna systems. However, the spectral efficiency of SM is low. To improve the spectral efficiency, generalized spatial modulation (GSM) can be used. In this paper, we propose to apply the A...
This paper presents a new development of mobile communication for application to remote data transmission and control. The concept of G, including global positioning system, global system for mobile (GSM), and geographic information system, is proposed. In this paper, a GSM real-time control system for data uplink and downlink remote terminals is considered. The proposed system can be implement...
Today Robotics plays an integral role in all aspects of manufacturing, medicine, industries, home basic and more and it will take on even greater importance in the future. Controlling the robot by using GSM Module is a most suggested mechanism for mobile robot which has the capability of changing directions for the long range distances. In this design, fire detection and controlling method usin...
The method of moments (MOM) in conjunction with the generalized scattering matrix (GSM) approach is proposed to analyze transverse multilayered structures in a metal waveguide. The formulation incorporates ports as an integral part of the GSM formulation and so the resulting model can be integrated with circuit analysis. The proposed technique permits the modeling of interactive discontinuities...
GSM is the most popular standard for mobile phones in the world. In spite of the tremendous market growth, however, the GSM system has the fatal security problems in TMSI allocation protocol. These problems are right user authentication and location privacy. In this paper, we propose the secure TMSI allocation mechanism using the certification concept to solve these problems. The proposed mecha...
Background: People who use home blood glucose monitors may use their mobile phones in the close vicinity of medical devices. This study is aimed at investigating the effect of the signal strength of 900 MHz GSM mobile phones on the accuracy of home blood glucose monitors.Methods: Sixty non-diabetic volunteer individuals aged 21 - 28 years participated in this study. Blood samples were analyzed ...
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