Title :
Orthogonal frequency division multiplexing in wireless communication systems with multimode fibre feeds
Author :
Dixon, Bryn J. ; Pollard, Roger D. ; Iezekiel, Stavros
Author_Institution :
Inst. of Microwaves & Photonics, Leeds Univ., UK
Abstract :
The feasibility of using multimode fibre as an inexpensive cell feed in broadband indoor picocellular systems is investigated. The performance of coded orthogonal frequency division multiplexing for a variety of multimode fibre profiles, including stepped index and α-profile graded index fibres is assessed. In addition to its ability to perform well in a frequency selective multipath environment, OFDM is shown to offer good protection against the frequency selectivity of a dispersive multimode fibre. Data-rates in excess of 100 Mb/s (without equalisation) over a multimode fibre channel are possible, whereas they may be limited to some 20-30 Mb/s using conventional ASK modulation
Keywords :
OFDM modulation; broadband networks; fading channels; gradient index optics; indoor radio; multipath channels; optical fibre dispersion; optical fibre networks; picocellular radio; α-profile graded index fibres; 60 GHz; ASK modulation; EHF; broadband indoor picocellular systems; cell feed; coded OFDM; data-rates; dispersive multimode fibre; fibre-radio system; frequency selective multipath environment; multimode fibre channel; multimode fibre feeds; orthogonal frequency division multiplexing; performance; stepped index fibres; wireless communication systems; Bandwidth; Dispersion; Fading; Feeds; Forward error correction; Iron; OFDM modulation; Optical fiber communication; Refractive index; Wireless communication;
Conference_Titel :
Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-6267-5
DOI :
10.1109/RAWCON.2000.881860
