Ordered Sequence Detection and Robust Design for Pulse Interval Modulation

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


This paper proposes an ordered sequence detection (OSD) for digital pulse interval modulation (DPIM) applied in optical wireless communications (OWC). To detect a packet consisting of $L$-chips, the computational complexity of OSD is of the order $\mathcal{O}(L\log_2L)$. Moreover, this paper also proposes a robust pulse interval modulation (RPIM) scheme based on OSD. In RPIM, the last of every $K$ symbols is with more power to transmit information and simultaneously to provide a built-in barrier signal. In this way, error propagation is bounded in a slot of $K$ symbols. Together with interleaver and forward error correction (FEC) codes, the bit error rate (BER) can be greatly reduced. We derive the approximate uncoded BER performance of conventional DPIM with OSD and the newly proposed RPIM with OSD based on order statistic theory. Simulations are conducted to collaborate on theoretical analysis and show that RPIM with OSD considerably outperforms existing DPIM with optimal threshold detection in either uncoded or coded systems over various channels.
Original languageEnglish (US)
Title of host publication2018 IEEE Globecom Workshops (GC Wkshps)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781538649206
StatePublished - Mar 18 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The work of S. Guo was supported in part by the National Natural Science Foundation of China (No. 61801266 and 61471269) and by China Postdoctoral Science Foundation under Grant 2017M622202 and by the Shandong Natural Science Foundation under Grant ZR2018BF033.


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