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An Intercarrier Interference Cancellation Technique Based on SSC-ASIF Scheme in OFDM


Posted 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
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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.


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http://ieeexplore.ieee.org/iel5/5300798/5300799/05302708.pdf?arnumber=5..................[:=> Show Contents <=:]



Abstract OFDM is a multi-carrier system where data bits are encoded to multiple sub


Posted 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
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OFDM parameters
6. Algorithm survey & simulation
The simulation at algorithmic level is to determine performance of algorithms for various non-linearities and imperfections. The algorithms are tweaked and fine tuned to get the required performance. The following algorithms/parameters are verified
• Channel estimation and compensation for different channel models (Rayleigh, Rician, JTC, Two ray) for different delay spreads
• Correlator performance for different delay spreads and different SNR
• Frequency estimation algorithm for different SNR and frequency offsets
• Co..................[:=> Show Contents <=:]



Intercarrier Interference Compression in OFDM Communication Systems by Using Correlat


Posted 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
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ier is easily separated. When there is a frequency offset the Orthogonality is lost because now the spectral does not coincide with the peak of the individual carriers. So some power of the side lobes exists at the center of the individual carriers which is called ICI power. The ICI power will go on increasing as the frequency offset increases. The purpose of pulse shaping is to reduce the side lobes. If we can reduce the side lobes significantly we then the ICI power will also be reduced.
2.2.4 ICI Self Cancellation
ICI self –cancellation is a scheme that was introduced by Yuping ..................[:=> Show Contents <=:]



Frequency Variation of Adaptive MIMO OFDM


Posted 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
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al 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 of such a system are heavily dependent on the eigenvalues, the results and analysis presented have many applications. Examples include the performance of beamforming systems which is governed by the maximum eigenvalue and the link gain which is characterized by the sum of the eigenvalues..................[:=> Show Contents <=:]



Orthogonal Frequency Division Multiplexing Frequency Offset Correction full report


Posted 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
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data symbol has been presented. It has been shown that for small error in the estimate is conditionally unbiased and is the sense that the variance is inversely proportional to the number of the carriers in the OFDM signal. Furthermore, both the signal values and the ICI, contribute coherently to the estimate so that it is possible to obtain very accurate estimates even when the offset is too great, that is there is too much ICI to demodulate the data values. Since the estimate error depends only on total symbol energy, the algorithm works well in the multipath channels.
However, it is requir..................[:=> Show Contents <=:]



CWDM Coarse Wavelength Division Multiplexing full report


Posted 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
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ength division multiplexing^ WDM) 10
CWDM CIRCUIT COMPONENTS 12
AMPLIFICATION OF OPTICAL SIGNALS 14
Erbium doped fiber amplifiers Advantages of EDFAs
Optoelectronic amplifiers 15
ADVANTAGES OF CWDM 16
CONCLUSION 17
REFERENCES 18
LIST 01 i i(aim:s
NAME OF FIGURE PAGE NO:
PROPAGATION OF FDM 6
PROPAGATION OF WDM 6
CHANNEL SPACING IN DWDM 8
PROPAGATION OF CWDM 11
1 INTRODUCTION
In the modern communication systems, we use the optical fiber as the medium because it has many advantages. The security is the main advantage of optical fiber communication. The loss occurred in this communi..................[:=> Show Contents <=:]



wideband ofdm full report


Posted 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
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hatever other noise happens to be in the channel. To
maintain orthogonality between tones, it is necessary to ensure that
symbol time contains one or multiple cycles of each sinusoidal tone
waveform. This is normally the case, because the system numerology is
constructed such that tone frequencies are integer multiples of the
symbol period, as it is subsequently highlighted, where the tone
spacing is 1/T. figure. Shows three tones over a single symbol period,
where each tone has an integer number or cycles during the symbol.

Figure4 Time and Frequency domain representa..................[:=> Show Contents <=:]



WIDEBAND OFDM


Posted 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
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ion. It is extremely efficient in mitigating common problems in high-speed communication such as multipath fading and RF noise interference. It can be considered as multiple access technique OFDMA....................[:=> Show Contents <=:]



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