Modulation Scheme Based on Precoder Matrix for MIMO Optical Wireless Communication Systems
A modulation scheme for multiple-input multiple-output (MIMO) optical wireless systems that employ intensity modulation (IM) is proposed. This scheme, called precoder matrix modulation (PMM), exploits the properties of MIMO optical wireless communications to translate the spatial dimension into the...
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| Published in: | IEEE communications letters Vol. 16; no. 9; pp. 1516 - 1519 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
New York, NY
IEEE
01.09.2012
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subjects: | |
| ISSN: | 1089-7798, 1558-2558 |
| Online Access: | Get full text |
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| Abstract | A modulation scheme for multiple-input multiple-output (MIMO) optical wireless systems that employ intensity modulation (IM) is proposed. This scheme, called precoder matrix modulation (PMM), exploits the properties of MIMO optical wireless communications to translate the spatial dimension into the constellation parameters by using a 'precoder matrix'. The transmitted signals in PMM are guaranteed to be nonnegative, as required in IM optical wireless communications. Existing schemes such as pulse-amplitude modulation could be used in such systems, but the proposed scheme has a much better performance. The constellation size of PMM can be flexibly increased, mitigating the bandwidth shortage issue due to the limitation of light emitting diodes (the transmitters). |
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| AbstractList | A modulation scheme for multiple-input multiple-output (MIMO) optical wireless systems that employ intensity modulation (IM) is proposed. This scheme, called precoder matrix modulation (PMM), exploits the properties of MIMO optical wireless communications to translate the spatial dimension into the constellation parameters by using a `precoder matrix'. The transmitted signals in PMM are guaranteed to be nonnegative, as required in IM optical wireless communications. Existing schemes such as pulse-amplitude modulation could be used in such systems, but the proposed scheme has a much better performance. The constellation size of PMM can be flexibly increased, mitigating the bandwidth shortage issue due to the limitation of light emitting diodes (the transmitters). |
| Author | Zaichen Zhang Huaping Liu Liang Wu |
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| Copyright | 2015 INIST-CNRS Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Sep 2012 |
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| Keywords | Performance evaluation MIMO system Optical wireless communications modulation Optical telecommunication Coding circuit Wireless telecommunication Transmitter multiple-input multiple-output (MIMO) precoding Light emitting diode Free space propagation Coding Pulse amplitude modulation Pretreatment Intensity modulation Free space optics |
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| Snippet | A modulation scheme for multiple-input multiple-output (MIMO) optical wireless systems that employ intensity modulation (IM) is proposed. This scheme, called... |
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| SubjectTerms | Applied sciences Coding, codes Constellations Exact sciences and technology Information, signal and communications theory Light-emitting diodes MIMO Modulation multiple-input multiple-output (MIMO) Optical modulation Optical properties Optical receivers Optical telecommunications Optical transmitters Optical wireless communications precoding Radiocommunications Shortages Signal and communications theory Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Transmitters Transmitters. Receivers Wireless communication Wireless communication systems Wireless optical communications |
| Title | Modulation Scheme Based on Precoder Matrix for MIMO Optical Wireless Communication Systems |
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