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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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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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
Frequency offsets or frequency spreads distort theorthogonality between sub-carriers, which results in inter-carrierinterference (ICI), in regular OFDM communication systems. Inorder to combat the impact of ICI on OFDM systems, an ICImitigation technique by jointing symbol shift cancellation (SSC)and adjacent sub-channel interference filter (ASIF) is proposedin this paper. At first, the symbol shift cancellation (SSC) methodis used to cancel the impact of ICI on the far sub-carriers, andthen the adjacent sub-channel interferen ....etc

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INTERFERENCE CANCELLATION IN ECG SIGNALS



INTRODUCTION

The Electrocardiogram (ECG or EKG) is a painless test that records the electrical activity of the functioning of the heart.
Based on ECG signal features, physicians diagnose different Arrhythmias .

Problem Definition

ECG signals in their acquisition process are affected by various types of noise.
Noise degrades the signal quality and change tiny features that may be critical for clinical monitoring and diagnosis.
The power line freq ....etc

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Good morning sir,

I undersigned shilpa studying M.Tech in communication systems.Sir i want the matlab code for SIC algorithm to acheive Multipacket reception.

Thanking you,

yours faithfully
shilpa ....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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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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I need a matlab code in Successive interference cancellation in CDMA . ....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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