Differential Amplitude Pulse-Position Modulation for Indoor Wireless Optical Communications

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dc.contributor.authorSethakaset, Ubolthip
dc.contributor.authorGulliver, Thomas Aaron
dc.date.accessioned2014-07-18T20:24:05Z
dc.date.available2014-07-18T20:24:05Z
dc.date.copyright2005en_US
dc.date.issued2005
dc.descriptionSpringerOpenen_US
dc.description.abstractWe propose a novel differential amplitude pulse-position modulation (DAPPM) for indoor optical wireless communications. DAPPM yields advantages over PPM, DPPM, and DH-PIMĪ± in terms of bandwidth requirements, capacity, and peak-to-average power ratio (PAPR). The performance of a DAPPM system with an unequalized receiver is examined over nondispersive and dispersive channels. DAPPM can provide better bandwidth and/or power efficiency than PAM, PPM, DPPM, and DH-PIMĪ± depending on the number of amplitude levels A and the maximum length L of a symbol. We also show that, given the same maximum length, DAPPM has better bandwidth efficiency but requires about 1 dB and 1.5 dB more power than PPM and DPPM, respectively, at high bit rates over a dispersive channel. Conversely, DAPPM requires less power than DH-PIM2.When the number of bits per symbol is the same, PAM requires more power, and DH-PIM2 less power, than DAPPM. Finally, it is shown that the performance of DAPPM can be improved with MLSD, chip-rate DFE, and multichip-rate DFE.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.identifier.citationSethakaset and Gulliver. EURASIP Journal on Applied Signal Processing 2005:1, 3ā€“11en_US
dc.identifier.urihttp://jwcn.eurasipjournals.com/content/2005/1/542578
dc.identifier.urihttp://hdl.handle.net/1828/5470
dc.language.isoenen_US
dc.publisherHindawi Publishing Corporationen_US
dc.subjectdifferential amplitude pulse-position modulationen_US
dc.subjectoptical wireless communicationsen_US
dc.subjectintensity modulation and direct detectionen_US
dc.subjectdecision-feedback equalizationen_US
dc.titleDifferential Amplitude Pulse-Position Modulation for Indoor Wireless Optical Communicationsen_US
dc.typeArticleen_US

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