Improving PPM schemes in wireless infrared links at high bit rates
- 1 March 2001
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Communications Letters
- Vol. 5 (3) , 95-97
- https://doi.org/10.1109/4234.913151
Abstract
The authors conclude that pulse-position modulation (PPM) with Gaussian pulses provides better performance than classic PPM schemes with rectangular pulses over unguided optical links operating at high bit rates. In this fashion, both intersymbol interference (ISI), induced by multipath propagation, and the phase distortion effects due to the high-pass filter whose function is to suppress interference, are minimized. However, relevant improvement is not achieved if compared with the OOK format with Gaussian pulses and low duty cycle. The above conclusion is validated by the corresponding bit-error rate (BER) computation using Monte Carlo simulations.Keywords
This publication has 10 references indexed in Scilit:
- Comparison of improved OOK formats with pulse-position modulation in indoor unguided optical links at high bit ratesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Experimental 25-Mb/s wireless infrared link using 4-PPM with scalar decision-feedback equalizationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Performance evaluation of RZ signaling in indoor unguided optical links operating beyond 50 MbpsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- RZ-Gaussian pulses reduce the receivercomplexity in wireless infrared links at high bitratesElectronics Letters, 1999
- Performance analysis of improved pulse-position modulation in infrared linksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1999
- Performance of optical wireless OOK and PPM systems under the constraints of ambient noise and multipath dispersionIEEE Communications Magazine, 1998
- Wireless infrared communicationsProceedings of the IEEE, 1997
- Modeling of nondirected wireless infrared channelsIEEE Transactions on Communications, 1997
- Indoor ambient light noise and its effect on wireless optical linksIEE Proceedings - Optoelectronics, 1996
- Digital CommunicationPublished by Springer Nature ,1994