Description: OFDM信号在光纤无线通信系统中传输性能的研究，包括不同频率的4QAM、16QAM，是毕设资料，非常珍贵。-OFDM signal in optical wireless communication system transmission performance in the study, including different frequencies 4QAM, 16QAM, complete set of information is very valuable. Platform: |
Size: 105472 |
Author:Ruby |
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Description: The inherent robustness of OFDM against
multipath effects makes it an excellent choice for situations
where multiple transmitters are used simultaneously (to avoid
shadowing effects) and a path difference to the receiver exists.
One of the major disadvantages of an OFDM based system is
the characteristic high crest factor of the time domain signal.
In traditional RF based systems, this usually necessitates a
transmitter with a high dynamic range and hence results in
reduced power efficiency. In the proposed optical LED system,
this disadvantage is turned to an advantage - the time domain
OFDM signal is used to modulate (IM-DD) the optical source. Platform: |
Size: 1024 |
Author:JOSE MATHEW |
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Description: The inherent robustness of OFDM against
multipath effects makes it an excellent choice for situations
where multiple transmitters are used simultaneously (to avoid
shadowing effects) and a path difference to the receiver exists.
One of the major disadvantages of an OFDM based system is
the characteristic high crest factor of the time domain signal.
In traditional RF based systems, this usually necessitates a
transmitter with a high dynamic range and hence results in
reduced power efficiency. In the proposed optical LED system,
this disadvantage is turned to an advantage - the time domain
OFDM signal is used to modulate (IM-DD) the optical source. Platform: |
Size: 98304 |
Author:JOSE MATHEW |
Hits:
Description: The inherent robustness of OFDM against
multipath effects makes it an excellent choice for situations
where multiple transmitters are used simultaneously (to avoid
shadowing effects) and a path difference to the receiver exists.
One of the major disadvantages of an OFDM based system is
the characteristic high crest factor of the time domain signal.
In traditional RF based systems, this usually necessitates a
transmitter with a high dynamic range and hence results in
reduced power efficiency. In the proposed optical LED system,
this disadvantage is turned to an advantage - the time domain
OFDM signal is used to modulate (IM-DD) the optical source. Platform: |
Size: 12288 |
Author:JOSE MATHEW |
Hits:
Description: basic concept of OFDM is quite simple [4]–[7]. Data is transmitted in parallel on a number of different frequencies, and
as a result the symbol period is much longer than for a serial
system with the same total data rate. Because the symbol period
is longer, ISI affects at most one symbol, and equalization is
simplified. In most OFDM implementations any residual ISI is
removed by using a form of guard interval called a cyclic prefix.
When frequency division multiplexing (FDM) is used in conventional wireless systems, or wavelength division multiplexing
(WDM) is used in optical systems, information is also transmitted on a number of different frequencies simultaneously.
Platform: |
Size: 356352 |
Author:kartick |
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Description: 在AWGN信道模型下，对比ACO-OFDM和其他调制方式对光纤通信系统性能，将ACO-OFDM与一些调制技术相结合来进一步提高系统宽带效率、降低光发送功率等，以提升光纤通信系统的性能-In AWGN channel model, compared to ACO-OFDM and other modulation schemes for optical fiber communication system performance, the ACO-OFDM with some modulation techniques combined to further improve the system broadband efficiency and reduce light transmission power so as to enhance the performance of optical fiber communication systems Platform: |
Size: 1024 |
Author:胡江川 |
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Description: OFDM as a modulation technology, it transmit over both wireless and optical channel, and it distribute the data over a large number of
subcarrier can be overlapping. It achieved RF signal for the long haul transmission using RoF system. Platform: |
Size: 285696 |
Author:qasim |
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Description: 程序包含调制解调两部分，需结合optisystem软件运行，是基于数据反馈的相位噪声估计算法，适用于光OFDM系统。(The program consists of two parts, modulation and demodulation. It needs to run in conjunction with optisystem software. It is a phase noise estimation algorithm based on data feedback, and it is suitable for optical OFDM system.) Platform: |
Size: 3072 |
Author:adspvg |
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Search - ofdm for optical system