A power saving jamming system for e gsm900 and dcs1800 cellular phone networks for search and rescue applications
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The document discusses installing mobile signal transmitters on bridges and flyovers in Mumbai to reduce call drops. Due to the height of flyovers, signals were weak, causing drops. The Maharashtra State Road Development Corporation is allowing installation of transmission equipment on street light poles along flyovers. This has helped boost signals and reduced drops. The technology is also being used for future infrastructure projects like sea links and metros.
Umts
This document introduces a new evaluation scheme and optimization algorithms for universal mobile telecommunications system (UMTS) radio networks that goes beyond traditional snapshot models. The key aspects are:
1) It generalizes interference coupling matrices from user snapshots to average load and introduces an analytical scaling scheme to emulate load control, allowing for fast approximate analysis of network capacity without time-consuming simulations.
2) It presents two novel radio network optimization algorithms - an efficient local search procedure and a mixed integer program that aims to optimize the coupling matrix by designing it.
3) Computational experiments show that optimizing antenna tilts with the new approaches outperforms traditional snapshot models for realistic planning scenarios.
Ijecet 06 09_002
1. The document discusses performance enhancement of WiMAX mobile handover using OFDM with M-QAM modulation and best relay selection.
2. It analyzes the bit error rate performance of M-QAM OFDM systems for different modulation schemes, numbers of relays, and subchannels.
3. The results show that M-QAM OFDM with best relay selection provides higher performance and lower error communication compared to other techniques.
Jd3615921597
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IRJET-Electrical Power Robbery Detection and Transformer Fault Detection
This document describes an electrical power theft detection and transformer fault detection system. The system uses remote data transmission via GSM to identify unauthorized tapping on power distribution lines and monitor the condition of distribution transformers. Sensors measure transformer parameters like currents, voltages, temperatures and oil conditions. A microcontroller analyzes the data and sends alerts via SMS if power theft or transformer faults are detected. This provides a low-cost way to remotely monitor transformers and detect power theft locations without human intervention.
Network Optimization
Network optimization is technology used for improving network performance for a given environment. It is considered an important component of effective information systems management. Network optimization plays an important role as information technology is growing at exponential rates with business users producing large volumes of data and thus consuming larger network bandwidths.
If proper network optimization is not in place, the continuous growth can add strain to the network architecture of the concerned environment or organization.The goal of any network optimization is with the given set of constraints; ensuring an optimal network design with lowest cost structure and free flow of data.
Network optimization should be able to ensure optimal usage for system resources, improve productivity as well as efficiency for the organization. Network optimization looks at the individual workstation up to the server and the tools and connections associated with it. Large organizations make use of teams of network analysts to optimize networks.
Network optimization often makes use of traffic shaping, redundant data elimination, data caching and data compression and streamlining of data protocols. Network optimization must be able to boost network efficiency without acquiring additional or expensive hardware or software.
Bt0086, mobile computing
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A power saving jamming system for e gsm900 and dcs1800 cellular phone networks for search and rescue applications
- 1. A POWER SAVING JAMMING SYSTEM FOR E-GSM900 AND DCS1800 CELLULAR PHONE NETWORKS FOR SEARCH AND RESCUE APPLICATIONS Abstract: Recent statistics show an increase in bomb blast in our country. This paper introduces to avoid mobile communication based bomb blast, Jamming all other networks is one option to achieve that. This paper will introduce a jamming system which consumes little power and disturbs only small parts of the GSM spectrum but reliably cuts all connections between mobile stations (MS) and existing BTS. Existing system: In this existing system, we earlier days to restrict the mobile from exam hall, and temples etc they instruction given by some authority person, but in this application we have to find the mobile signal and deactivate the network in restricted areas example like minister meeting . Proposed system: In this proposed system, we are discussing about a “power saving jamming system for e-gsm900 and dcs1800 cellular phone networks for search and rescue applications”. In this project mobile jamming circuit are designed to disturb the communication between mobile station and base station system by generating noise signal. Using this project we can avoid the mobile communication based bomb blast in important meeting like international political meeting. Whenever we need we can switch on the mobile jammer by using microcontroller. The microcontroller switch on mobile jammer with help of relay. Relay is nothing but a electro mechanical switch.
- 3. Hardware Requirements 8051 microcontroller Mobile jammer circuit Relay Software Requirements Embedded C Keil compiler Application To avoid the mobile signal in restriction areas.