Performance evaluation of L-pulse-position modulation on non-directed indoor infrared channels

We examine the performance of high-speed non-directed infrared links using L-pulse-position modulation (L-PPM). When used with intensity modulation and direct detection, L-PPM leads to high average-power efficiency, because of its high peak-to-average power ratio. We derive an expression for the BER...

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Bibliographic Details
Main Authors: Audeh, M.D., Kahn, J.M.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Bit error rate
Gaussian noise
Infrared detectors
Intensity modulation
Intersymbol interference
Optical receivers
Optical reflection
Optical transmitters
Peak to average power ratio
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Summary:We examine the performance of high-speed non-directed infrared links using L-pulse-position modulation (L-PPM). When used with intensity modulation and direct detection, L-PPM leads to high average-power efficiency, because of its high peak-to-average power ratio. We derive an expression for the BER of an L-PPM link on an ISI channel. Using the measured characteristics of multipath indoor infrared channels, we calculate BER curves and ISI power penalties for 2-, 4-, 8- and 16-PPM links operating at 10 and 30 Mb/s. Our results indicate that L-PPM is a very promising modulation technique for high-speed non-directed infrared communication.< >
DOI:10.1109/ICC.1994.368801