Trellis-coded multiple-pulse position modulation for wireless infrared communications
- 27 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 225-230
- https://doi.org/10.1109/glocom.1998.775728
Abstract
We present new trellis codes based on multiple-pulse position modulation (MPPM) for wireless infrared communication. We assume that the receiver uses maximum-likelihood sequence detection to mitigate the effects of channel dispersion, which we model using a first-order low-pass filter. Compared to trellis codes based on PPM, the new codes are less sensitive to multipath dispersion and offer better power efficiency when the desired bit rate is large compared to the channel bandwidth. For example, when the bit rate equals the bandwidth, trellis-coded (/sub 2//sup 17/)-MPPM requires 1.4 dB less optical power than trellis-coded 16-PPM having the same constraint length.Keywords
This publication has 8 references indexed in Scilit:
- Pulsewidth-constrained signaling and trellis coded modulation on the direct-detection optical channelPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Modeling of nondirected wireless infrared channelsIEEE Transactions on Communications, 1997
- Performance of multiple pulse position modulation on multipath channelsIEE Proceedings - Optoelectronics, 1996
- Probabilistic construction of large constraint length trellis codes for sequential decodingIEEE Transactions on Communications, 1995
- Wireless Infrared CommunicationsPublished by Springer Nature ,1994
- Modulation and coding for throughput-efficient optical systemsIEEE Transactions on Information Theory, 1994
- Digital CommunicationPublished by Springer Nature ,1994
- On the performance evaluation of trellis codesIEEE Transactions on Information Theory, 1987