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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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iers interference. By processingso, the effect of ICI on the OFDM system is reduced aspossible, and
its bandwidth efficiency has rare loss.In this paper, a new ICI cancellation scheme and
itsarchitecture are presented in Section II. The symbol shiftcancellation (SSC) method and the
adjacent sub-channelinterference filter (SSC-ASIF) scheme is respectively discussedin Section III
and IV, and then BER performance of the OFDMsystem with the ICI cancellation scheme proposed in this
paperis simulated and analyzed in Section V. Download full report http://ieeexplore.ieee.org/iel5/5300798/530.................. [:=> 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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er system where data bits are encoded to multiple sub-carriers and sent simultaneously in time. The
result is an optimum usage of bandwidth. A set of orthogonal sub-carriers together forms an OFDM
symbol. To avoid ISI due to multi-path, successive OFDM symbols are separated by guard band. This
makes the OFDM system resistant to multi-path effects. Although OFDM in theory has been in existence
for a long time, recent developments in DSP and VLSI technologies have made it a feasible option.
This paper describes the VLSI implementation of OFDM in details. Specifically the 802.11a OFDM
system has..................[:=> 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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ven N, W of OFDM is less than or equal to W of FDM.1.2 Transmitter of OFDMRepresentation of ak , X(0), X(1), X(2), X(3) in graphical form: At first the transmitter converts the input data from a serial stream to parallel sets. Each set of contain one symbol Xk, for each subcarrier. For example, a set of four data would be 1 1 1 -1 -1. Suppose that this transmission takes 4 seconds then each piece of data has a duration of 1 second. On the other hand , OFDM would send the 4 piece simultaneously, in this case, each piece of data has a duration of 4 seconds. This longer dur.................. [:=> 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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n 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 Wishart matrices defined for each OFDM subcarrier and investigate their variation across frequency. Since the throughput and performance o.................. [:=> 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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h that the phase shift doesnot exceed +or - n. The frequency offset in Hz is 8=e/T=eAf where Af is
the inter carrier spacing and T is the symbol interval. Let us assume that the initial frequency
offset is not greater than + or-5max. Then Af initial>2Smax determines the minimum initial carrier spacing, and the corresponding dft lengths. If the average power of the shortened symbols is kept the same, the variance of the estimate of einitial will be larger than for the longer data symbols,since it estimates the fraction of carrier spacing, corresponds to a proportionately larger fractional off.................. [:=> 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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WDM , multiple signals 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 discre..................[:=> 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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dulated with known values to allow the demodulator to adjust amplitude and phase. There are multiple pilot carriers to improve SNR. Signal whitener The signal whitener reduces the peak to average power level ratio that must pass through the radio amplifiers and A/D converters; it can also provide a level of security. The W-OFDM symbol is multiplied by a vector of complex value, R that is known to the transmitter and receiver. There are many vectors that can be used for, R and different R can be used for each W-OFDM symbol; thus this stage can be used as a level of se.................. [:=> 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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ce. It can be considered as multiple access technique OFDMA....................[:=> Show Contents <=:] |

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