CELL PHONE INTERFERENCE IN IR PLANES

Presented By:
K.RAJESH KUMAR N.VIDYA SAGAR REDDY

R.G.M.C.E.T.
Abstract:

The advent of cell phones has made single connected network.Communications between people have become an easier task and hence there is growth every where.But this use of cellular communication is restricted in airplanes due to the threat that cell phones frequencies might interfere with that of the air planes electronic equipments(cockpit electronics) In this paper we have proposed ....etc

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ABSTRACT :-
A SQUID (for superconducting quantum interference device) is a very sen
isitive magnetometer used to measure extremely weak magnetic fields, based on superconducting loops containing Josephson junctions.
SQUIDs are sensitive enough to measure fields as low as 5 aT (5×10−18 T) within a few days of averaged measurements. Their noise levels are as low as 3fT•Hz-½. For comparison, a typical refrigerator magnet produces 0.01 tesla (10−2 T), and some processes in animals produce very small magne ....etc

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presented by:
Rahul Singh
Nafisur Rahman


Intercarrier Interference Compression in OFDM Communication Systems by Using Correlative Coding
1. Orthogonal Frequency Division Multiplexing(OFDM)
1.1 Introduction
Over the past few years , there has been increasing number of users of mobile/movable non wired communication than wired communication system. At present, in addition to voice services only low bit data rate are available to mobile users. The mobile radio channel is characterized by multipath reception ....etc

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I want to some reference ppt for co channel interference mitigation ....etc

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Electromagnetic Interference (EMI) & Electromagnetic Compatibility (EMC)

INTRODUCTION

¢ EMI-

It consists of any unwanted conducted or radiated signals of electric origin that can cause degradation in system or equipment performance.

¢ EMC-

It is the ability of the system to function as designed without any degradation in performance due to EMI with in the operational environment


Classification of EMI

¢ INTRASYSTEM EMI-

EMI problems with in the system one is dealing with.

¢ INTERSYSTEM EMI-

EMI problem ....etc

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Reliable Adaptive Modulation and Interference Mitigation for
Mobile Radio Slow Frequency Hopping Channels

Abstract—

The Long Range Fading Prediction algorithm for
Slow Frequency Hopping (SFH) systems is proposed and demonstrated
to enable combined Adaptive Modulation and adaptive
Frequency Diversity to mitigate the effects of fading and partialband
interference. Significant performance gains are demonstrated
relative to non-adaptive methods in realistic mobile
radio SFH channels where the total ba ....etc

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Hello,

Pls I need help with simulating macrocell network overlaid with femtocells in a LTE cellular system using Matlab. The cell is to be sectored into three or six and i want to be able to separate it into cell centre region and cell edge region. Any help or suggestion will be highly appreciated.

Thanks in anticipation.

Dan ....etc

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....etc

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submitted by:
Ramhari Bhapkar
Anup Gholkar
Abhijeet Kumbhojkar


CO CHANNEL INTERFERENCE REDUCTION IN GSM
Introduction to Cellular Systems
 Solves the problem of spectral congestion and user capacity.
 Offer very high capacity in a limited spectrum without major technological changes.
 Reuse of radio channel in different cells.
 Enable a fix number of channels to serve an arbitrarily large number of users by reusing the channel throughout the coverage region.
Frequency Reuse
....etc

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Mitigation of Control Channel Jamming under Node Capture Attacks



Abstract:

Availability of service in many wireless networks depends on the ability for network users to establish and maintain communication channels using control messages from base stations and other users. An adversary with knowledge of the underlying communication protocol can mount an efficient denial of service attack by jamming the communication channels used to exchange control messages. The use of spread spectrum techniques can deter an external adversa ....etc

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