Preamble-based SNR Estimation in Frequency Selective Channels for Wireless OFDM Systems
Synopsis
Introduction
There are two general categories of average SNR estimators. Data-aided (DA) estimators are based on either perfect or estimated knowledge of the transmitted data. However, a certain portion of data is needed for estimation purposes, which reduces bandwidth efficiency. Blind or in-service estimators derive SNR estimate from an unknown information-bearing portion of the received signal preserving efficiency a ....etc

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Presented by:
M.N.N.V.SAIRAM
M.SUBRAMANYAM KUMAR
G.RAHUL VARMA


Preamble-based SNR Estimation in Frequency Selective Channels for Wireless OFDM Systems
AIM:
To develop an efficient algorithm for the average SNR estimation in wireless OFDM systems.
BACK GROUND:
• OFDM is a multicarrier modulation scheme that provides strong robustness against inter symbol interference (ISI) by dividing the broadband channel into many narrowband sub- channels in such a way that attenuation ....etc

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Abstract—We have investigated the fundamental operation of
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1 Introduction
Some communication between members in a software project leaves traces (such as emails or protocols from meetings) that make it possible to retrieve information later on e.g. what was agreed. Other communication channels leave no trace (e.g. informal meetings, telephone conversations, and chat sessions over the Internet). If something is agreed upon in when communicating through such channels, this information will be lost and can give rise to conflicts later. The task of this project is therefore to store rele ....etc

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Introduction:
In this 21st century we required a multi functional system to operate on different platforms, which can access data easily, the main purpose of a Heterogeneous server is to establish a Heterogeneous network that can connect computers and other devices with different operating systems and/or protocols. For example, local area networks (LANs) that connect Microsoft Windows and Linux based personal computers with Apple Macintosh computers are heterogeneous. The word heterogeneous network is also used in ....etc

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