Performance evaluation of rate-adaptive transmission techniques for optical wireless communications

The performance evaluation of different rate-adaptive transmission techniques for indoor unguided optical links is presented. Here, the superiority of the adaptive environment based on the use of variable silence periods and on-off keying (OOK) formats with memory has been corroborated if compared t...

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Vydané v:2004 IEEE 59th Vehicular Technology Conference Ročník 2; s. 914 - 918 Vol.2
Hlavní autori: Garrido-Balsells, J.M., Garcia-Zambrana, A., Puerta-Notario, A.
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: Piscataway, N.J IEEE 2004
Predmet:
Applied sciences
Bit rate
Coding, codes
Convolutional codes
Exact sciences and technology
Information, signal and communications theory
Infrared detectors
Modulation, demodulation
Optical receivers
Optical telecommunications
Peak to average power ratio
Pulse modulation
Robustness
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Wireless communication
Wireless LAN
Wireless optical communications
Wireless sensor networks
Performance evaluation
Optical links
Convolutional code
Amplitude shift keying
Bit error rate
Optical telecommunication
Flow rate regulation
Wireless telecommunication
RLL encoding
Teletraffic
Adaptive method
Indoor installation
Free space propagation
Optical transmission
Traffic management
Telecommunication channels
Traffic control
Infrared radiation
Transmission rate
Optical bus
Free space optics
ISBN:0780382552, 9780780382558
ISSN:1550-2252
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Shrnutí:The performance evaluation of different rate-adaptive transmission techniques for indoor unguided optical links is presented. Here, the superiority of the adaptive environment based on the use of variable silence periods and on-off keying (OOK) formats with memory has been corroborated if compared to other rate-adaptive techniques also used in this kind of system. Classical convolutional and rate-compatible punctured convolutional (RCPC) coding have been considered. A new hybrid RCPC scheme, with a puncturing matrix based on the insertion of variable silence periods, is proposed, achieving better bit-error rate (BER) results than conventional RCPC codes. On the other hand, OOK formats with memory have also been analyzed from the point of view of run-length limited (RLL) codes, comparing their performance with the HHH(1,13) code proposed and specified in the very fast infrared (VFIr) standard by the Infrared Data Association (IrDA). Finally, OOK formats with memory have revealed a greater increase of the peak-to-average optical power ratio (PAOPR). PAOPR has shown to be a very efficient parameter for evaluating the suitability of different rate-adaptive transmission techniques to the peculiar characteristics of wireless infrared channels.
ISBN:0780382552
9780780382558
ISSN:1550-2252
DOI:10.1109/VETECS.2004.1388963