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 Trellis codes based on amplitude and position modulation for infrared WLAN's
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/8281

title: Trellis codes based on amplitude and position modulation for infrared WLAN's
authors: Alves, R.
Gameiro, A.
issue date: 1999
publisher: IEEE
abstract: In this communication we consider the use of an hybrid modulation method called amplitude and pulse-position modulation (APPM) in infrared WLAN. In this hybrid method the information is conveyed both in the position and amplitude of a pulse. The bandwidth efficiency and the capacity of this new modulation scheme are derived and compared against pulse-position modulation (PPM), which allows us to conclude that APPM can be used to improve the performance of PPM without bandwidth expansion, using trellis-coded modulation (TCM) codes. We also derive the best trellis codes for some A×2-APPM, and the results show that non-negligible coding gains can be obtained with trellis codes of moderate complexity.
URI: http://hdl.handle.net/10773/8281
ISBN: 0-7803-5435-4
ISSN: 1090-3038
publisher version/DOI: http://dx.doi.org/10.1109/VETECF.1999.800324
source: VTC 1999-Fall: IEEE VTS 50th Vehicular Technology Conference
appears in collectionsDETI - Comunicações

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