Modified Pulse 2.45 Fractal Microstrip Antenna
In this paper, the idea of space-filling properties of the fractal is used to minimize the area of a microstrip rectangular patch antenna operating at 2.45GHz. The first iteration is in the form...
View ArticleCell Planning in GSM Mobile
Cell planning in GSM mobile system is one of the most important operations must be done before the installation of the system. Cell planning means studying the geographic area where the system...
View ArticleAnalysis, Design and Simulation of a Log Periodic Antenna for Mobile...
The Log-Periodic loop Antenna (LPA) is investigated as a new type of antenna, whose properties vary periodically with the logarithm of frequency and provides wide bandwidth, broad beam width, and...
View ArticlePerformance Evaluation of SIP Based Handover in Heterogeneous Access Networks
Wireless technologies evolve very fast in last years. In the future operators will need to enable users to use communications services independent from access technologies, thus they will need to...
View ArticleA Review for Uniqueness and Variations in Throughput of MANET Routing...
Very prestigious work has been performed in the field of Mobile Ad-hoc NETworks (MANETS) with respect to their routing protocols. Researchers have developed and designed so many protocols for...
View ArticleTime Synchronizing Signal by GPS Satellites
In many industrial and trading activities such as navigation, mapping, power distribution, telecommunication, weather station, digital radio, industrial control systems and research centers one of...
View ArticleRedundant Data Transmission and Nonlinear Codes
In this paper, the authors investigate redundant data transmission protected by arbitrary (not necessarily linear) codes. They generalize results known so far for linear codes, in particular for...
View ArticleA Unified Approach for Heterogeneity and Node Fault Robustness in Dynamic...
In this paper, the authors deals with the area coverage problem for a network of mobile sensors. Continuous mobility is used for getting measures over the area of interest with a reduced number of...
View ArticleOFDM System Under the Combined Effect Analysis of the Phase Noise, Carrier...
In this paper, the authors provide an exact closed-form expression of the effective Signal-to-Noise Ratio (SNR) for Orthogonal Frequency Division Multiplexing (OFDM) performance under the combined...
View ArticleA Study of Propagation Effects in a Wireless Test Bed
The paper discusses several effects influencing the propagation in a laboratory wireless test bed and also aspects important for designing and setting up the wireless test bed with space...
View ArticleThe Laser Satellites Communications and Laser Noises
The gain of advanced optical communication systems is reduced by the noise of optical source. Coherent optical communication systems are in particular very sensitive to the noise transmitter and...
View ArticleInter-Cell Interference for Reverse Link in WCDMA
The Personal Communications Systems PCS are based on three techniques: Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA). The...
View ArticleOptimization of Application QoS Protocols for 3G/4G Mobile Networks
The importance of Quality of Service (QoS) provisioning has become one of the central issues of 3G/4G mobile network design and analysis. Mobile multimedia applications have high demands in terms...
View ArticleAlgorithms for Locating GPS Coordinates on PDA
The purpose of the authors' paper is to find algorithms for loading large maps on PDA and place on it the geographical location given by latitude and longitude. C++ and C# programming languages...
View ArticleA Blind Source Separation Based Cryptography Scheme for Mobile Military...
Security in digital transmission is an increasingly interesting topic in a number of fields. In many cases, however, the need for security is forfeited due to the high complexity of commonly used...
View ArticlePerformance Improvement of Synchronous Multiuser Communication Systems by...
In this paper, the authors presents new techniques that improve the performance of Code Division Multiple Access (CDMA) system for transmission of digital data over time varying channels such as...
View ArticleLimitations of Current 4G Systems and Its Substitute Schemes with TDD/TDMA
In current 4G system given in recent literatures, channel estimation overhead and complexity of Multi-User Detectors (MUD), may lead to bad performance in fast fading channel scenarios when large...
View ArticleOn the Minimum Number of Users for the Generation of H-SS Traffic in a...
Simulation plays an important role for the design, performance evaluation and dimensioning of computer networks. Diverse network features can be studied with the aid of simulation scenarios....
View ArticleComparative SAR Assessment in Adults and Children Exposed to Electromagnetic...
Exposure to radio frequency electromagnetic fields has raised scientific and public concern regarding possible adverse effects to people exposed to such radiation. At cellular mobile communication...
View ArticleInvestigating the Impacts of Digital Elements in Web Information for...
The Web offers enormous amount of digital information for communication and socializing. The fact that Web has been able to provide users with instant and global access to shared information, this...
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