Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications
In this article, three digital modulation schemes popular in optical wireless communication systems (OOK, PPM and DPIM) are compared based on bandwidth requirement, power efficiency, transmits-ion capacity and biterror probability. In OOK, the bandwidth requirement is roughly equivalent to the data...
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| Format: | Conference or Workshop Item |
| Language: | English |
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IEEE
2006
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| Online Access: | http://eprints.um.edu.my/6233/1/Comparison_of_selected_digital_modulation_schemes_%28OOK%2C_PPM_and_DPIM%29_for_wireless_optical_communications.pdf |
| _version_ | 1796945414651379712 |
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| author | Mahdiraji, G.A. Zahedi, E. |
| author_facet | Mahdiraji, G.A. Zahedi, E. |
| author_sort | Mahdiraji, G.A. |
| collection | UM |
| description | In this article, three digital modulation schemes popular in optical wireless communication systems (OOK, PPM and DPIM) are compared based on bandwidth requirement, power efficiency, transmits-ion capacity and biterror probability. In OOK, the bandwidth requirement is roughly equivalent to the data rate (Rb). PPM achieves higher average power efficiency than OOK at the expense of an increased bandwidth ( 4) compared to OOK. Besides, the use of PPM imposes more system complexity compared to OOK since both slot- and symbol-level synchronizati-ons, critical to system performance, are required at the receiver. Unlike PPM, DPIM does not require symbol synchronization since each symbol is initiated with a pulse. Furthermore, DPIM displays a higher transmiss-ion capacity by eliminating all the unused time slots from within each symbol. In terms of BER, 4-DPIM displays a performance in between that of OOK and PPM. It is concluded that DPIM is the most efficient scheme in terms of transmission capacity and band-width requirements. When it comes to power and error performance, PPM is the best among the three schemes. |
| first_indexed | 2024-03-06T05:16:18Z |
| format | Conference or Workshop Item |
| id | um.eprints-6233 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:16:18Z |
| publishDate | 2006 |
| publisher | IEEE |
| record_format | dspace |
| spelling | um.eprints-62332013-07-02T01:31:50Z http://eprints.um.edu.my/6233/ Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications Mahdiraji, G.A. Zahedi, E. TA Engineering (General). Civil engineering (General) TK Electrical engineering. Electronics Nuclear engineering In this article, three digital modulation schemes popular in optical wireless communication systems (OOK, PPM and DPIM) are compared based on bandwidth requirement, power efficiency, transmits-ion capacity and biterror probability. In OOK, the bandwidth requirement is roughly equivalent to the data rate (Rb). PPM achieves higher average power efficiency than OOK at the expense of an increased bandwidth ( 4) compared to OOK. Besides, the use of PPM imposes more system complexity compared to OOK since both slot- and symbol-level synchronizati-ons, critical to system performance, are required at the receiver. Unlike PPM, DPIM does not require symbol synchronization since each symbol is initiated with a pulse. Furthermore, DPIM displays a higher transmiss-ion capacity by eliminating all the unused time slots from within each symbol. In terms of BER, 4-DPIM displays a performance in between that of OOK and PPM. It is concluded that DPIM is the most efficient scheme in terms of transmission capacity and band-width requirements. When it comes to power and error performance, PPM is the best among the three schemes. IEEE 2006 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.um.edu.my/6233/1/Comparison_of_selected_digital_modulation_schemes_%28OOK%2C_PPM_and_DPIM%29_for_wireless_optical_communications.pdf Mahdiraji, G.A. and Zahedi, E. (2006) Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications. In: Research and Development, 2006. SCOReD 2006. 4th Student Conference on, 2006. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4339297 |
| spellingShingle | TA Engineering (General). Civil engineering (General) TK Electrical engineering. Electronics Nuclear engineering Mahdiraji, G.A. Zahedi, E. Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications |
| title | Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications |
| title_full | Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications |
| title_fullStr | Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications |
| title_full_unstemmed | Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications |
| title_short | Comparison of selected digital modulation schemes (OOK, PPM and DPIM) for wireless optical communications |
| title_sort | comparison of selected digital modulation schemes ook ppm and dpim for wireless optical communications |
| topic | TA Engineering (General). Civil engineering (General) TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.um.edu.my/6233/1/Comparison_of_selected_digital_modulation_schemes_%28OOK%2C_PPM_and_DPIM%29_for_wireless_optical_communications.pdf |
| work_keys_str_mv | AT mahdirajiga comparisonofselecteddigitalmodulationschemesookppmanddpimforwirelessopticalcommunications AT zahedie comparisonofselecteddigitalmodulationschemesookppmanddpimforwirelessopticalcommunications |