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Orthogonal frequency-division multiplexing in wireless communication systems with multimode fiber feeds \ud

By B.J. Dixon, R.D. Pollard and S. Iezekiel


The feasibility of using multimode fiber as an inexpensive\ud cell feed in broad-band indoor picocellular systems is investigated in this paper. The performance of coded orthogonal frequency-division multiplexing (OFDM) for a variety of multimode fiber profiles, including stepped index and -profile graded index fibers, is assessed. In addition to its ability to perform well in a frequency-\ud selective multipath environment, OFDM is shown to offer\ud good protection against the frequency selectivity of a dispersive multimode fiber. Data rates in excess of 100 Mb/s (without equalization) over a multimode fiber channel are possible, whereas they may be limited to some 20–30 Mb/s using conventional ASK modulation

Year: 2001
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