Analysis of BER of OFDM in Optical Domain With Different Modulation Techniques

In OFDM system, the subcarrier frequencies are chosen so that the subcarriers are orthogonal to each other, meaning that cross talk between the sub channels is eliminated. Priority of OFDM system is given to minimizing the interference or crosstalk among the channels and symbols comprising the data stream. The primary advantage of OFDM is its ability to cope with severe channel conditions like attenuation of high frequencies, narrowband interference and frequency selective fading due to multipath. The existing OFDM systems were modeled based on frequency domain using various modulation techniques in AWGN channel.

Provided by: International Journal of Electronics Communication and Computer Engineering Topic: Mobility Date Added: Feb 2013 Format: PDF

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