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## An Intercarrier Interference Cancellation Technique Based on SSC-ASIF Scheme in OFDMPosted by: seminar class Created at: Wednesday 04th of May 2011 04:21:19 AM Last Edited Or Replied at :Wednesday 04th of May 2011 04:21:19 AM | An Intercarrier Interference Cancellation Technique Based on SSCASIF Scheme in OFDM ,
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andwidth efficiency and thecomplexity of ICI cancellation method. Simulation results showthat the
technique proposed in this paper can effectively improveBER (Bit Error Rate) performance of the OFDM
system.Keywords: OFDM; ICI; BER; ASIF; SSCI. INTRODUCTIONOrthogonal frequency division multiplexing (OFDM)technology has already been rapidly developed. OFDM hasalso been accepted for the next generation wirelesscommunication systems, such as B3G, Wimax and so on.Although multi-path propagation and frequency-selectivefading exist in radio channels, OFDM is very robust to radiochannel imp.................. [:=> Show Contents <=:] | |||

## Abstract OFDM is a multi-carrier system where data bits are encoded to multiple subPosted by: seminar class Created at: Monday 11th of April 2011 04:40:30 AM Last Edited Or Replied at :Monday 11th of April 2011 04:40:30 AM | abstract for ofdm,
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s approach: • Lower gate count compared to DSP+RAM+ROM, hence lower cost • Low power consumption Due to the advantages mentioned above a VLSI based approach was considered for implementation of an 802.11a Base band. Following sections describe the VLSI based implementation in details. 4. Design Methodology Early in the development cycle, different communication and signal processing algorithms are evaluated for their performance under different conditions like noise, multipath channel and radio non-linearity. Since most of these algorithms are coded in C or tools like Mat.................. [:=> Show Contents <=:] | |||

## Intercarrier Interference Compression in OFDM Communication Systems by Using CorrelatPosted by: seminar class Created at: Thursday 24th of February 2011 11:08:28 PM Last Edited Or Replied at :Thursday 24th of February 2011 11:08:28 PM | Intercarrier Interference Compression in OFDM Communication Systems by Using Correlat ,
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eduction or the absence of this redundancy by properly exploiting null subcarriers that are inherent
in standardized multicarrier systems. This method is not effective one.2.2.2 Time Domain WindowingThis approach can be regarded as an improved version of the method using correlative coding, where the data samples of the tail subcarriers in an OFDM symbol are encoded with the data samples of the head ones in the same OFDM symbol, instead of being encoded with those of the subsequent OFDM symbol for the original approach. For low complexity, the modified correlative.................. [:=> Show Contents <=:] | |||

## Frequency Variation of Adaptive MIMO OFDMPosted by: seminar surveyer Created at: Tuesday 05th of October 2010 01:28:11 AM Last Edited Or Replied at :Tuesday 05th of October 2010 01:28:11 AM | power frequency variations ,
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ssion down the eigenchannels of the MIMO OFDM channel. Many extensions to this work are possible
including LCRs in time as well as in frequency. The accuracy of the analytical approximations are
verified by Monte Carlo simulations. ion for Research, Science and Technology of New Zealand. INTRODUCTION In this paper we consider a multiple-input multiple-output (MIMO) system in conjunction with orthogonal frequency division multiplexing (OFDM) operating over frequency selective Rayleigh and Rician fading environments. In particular we focus on the eigenvalues of the complex Wishar.................. [:=> Show Contents <=:] | |||

## Orthogonal Frequency Division Multiplexing Frequency Offset Correction full reportPosted by: project topics Created at: Sunday 25th of April 2010 11:46:50 PM Last Edited Or Replied at :Thursday 18th of August 2011 01:30:07 PM | orthogonal frequency division multiplexing definition ,
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n of the first full length data symbol. Codes: 1.calculation of frequency offset: clc; clear all; close all; x1= randint(1,1020);%generating a random number for i=1:1020 if (x1(i)>0.5) x1(i)=1; else x1(i)=0; end end disp(x1); x2=reshape(x1,4,255);%to convert 1 by 1020 to 255 by 4 for n=1:4 x3(:,n)=ifft(x2(:,n),255);%ifft of the random signal end y=awgn(x3,10);%adding the awgn noise for p=1:4 xx(:,p)=fft(x3(:,p),255);%taking fft of transmitted signal end x7=reshape(xx,1,1020); x8=abs(x7); for v=1:1020 if (abs(x8(v))-abs(x1(v)))<=0.5%to convert into a 1 or 0 x8(v)=0; end end .................. [:=> Show Contents <=:] | |||

## CWDM Coarse Wavelength Division Multiplexing full reportPosted by: project report tiger Created at: Thursday 04th of March 2010 03:56:48 AM Last Edited Or Replied at :Tuesday 26th of October 2010 03:06:35 AM | dwdm bandwidth,
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are carried together as separate wavelengths of light in a multiplexed signal. WDM is used in
optical Fiber networks. It uses the same principle of FDM but applying to wavelength of light in
optical fiber. WDM resembles FDM in that idea is to send information signals that occupy the same
band of frequencies through the same fiber at the same time without interfering with each other.
This is accomplished by modulating injection laser diodes that are transmitting highly concentrated
light waves at different wavelengths. Therefore WDM is coupling light at two or more discrete
wavelengths into an..................[:=> Show Contents <=:] | |||

## wideband ofdm full reportPosted by: computer science technology Created at: Friday 22nd of January 2010 07:02:26 AM Last Edited Or Replied at :Sunday 17th of July 2011 11:56:58 PM | wideband delphi estimation process ,
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age arriving at the receiver. This is called multipath fading. The combination of all paths at the receiver causes the modulated message to be distorted. Thus the individual pulses overlap one another, and this is called intersymbol interference. Each subcarrier in an OFDM signal has a very narrow bandwidth, thus the symbol rate is very low. This results in the signal having high tolerance to multi path delay spread, reducing any significant intersymbol interference. RF interference To combat the effects of random signal noise, which can prevent the receiver from ful.................. [:=> Show Contents <=:] | |||

## WIDEBAND OFDMPosted by: computer science crazy Created at: Sunday 21st of September 2008 01:13:47 PM Last Edited Or Replied at :Thursday 01st of April 2010 04:15:58 AM | ofdm books ,
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be considered as multiple access technique OFDMA....................[:=> Show Contents <=:] |

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