Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System
We propose a new non-coherent multicarrier spread-spectrum system that combines orthogonal chaotic vector shift keying (OCVSK) and orthogonal frequency-division multiplexing (OFDM). The system enhances OCVSK by sending multiple groups of information sequences with the same orthogonal chaotic vector...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8424332/ |
| _version_ | 1818911670067527680 |
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| author | Fadhil S. Hasan Alejandro A. Valenzuela |
| author_facet | Fadhil S. Hasan Alejandro A. Valenzuela |
| author_sort | Fadhil S. Hasan |
| collection | DOAJ |
| description | We propose a new non-coherent multicarrier spread-spectrum system that combines orthogonal chaotic vector shift keying (OCVSK) and orthogonal frequency-division multiplexing (OFDM). The system enhances OCVSK by sending multiple groups of information sequences with the same orthogonal chaotic vector reference sequences over the selected subcarriers. Each group carries M information bits and is separated from other groups by orthogonal chaotic reference signals. We derive the information rate enhancement (IRE) and the energy saving enhancement (ESE) factors as well as the bit error rate theory of OFDM-OCVSK under additive white Gaussian noise and multipath Rayleigh fading channels and compare the results with conventional OCVSK systems. For large group numbers, the results show that the IRE and ESE factors approach M×100% and M/(M+1)×100%, respectively, and thus outperform OCVSK systems. The complexity analysis of the proposed scheme as compared with OFDM-DCSK shows a significant reduction in the number of complex multiplications required. |
| first_indexed | 2024-12-19T23:02:23Z |
| format | Article |
| id | doaj.art-0cd3f690aee349bdb1dbc2a9f78d7c52 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T23:02:23Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-0cd3f690aee349bdb1dbc2a9f78d7c522022-12-21T20:02:27ZengIEEEIEEE Access2169-35362018-01-016463224633310.1109/ACCESS.2018.28628628424332Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication SystemFadhil S. Hasan0Alejandro A. Valenzuela1https://orcid.org/0000-0002-8958-5855Electrical Engineering Department, Al-Mustansiryah University, Baghdad, IraqEMT Department, Hochschule Bonn-Rhein-Sieg University of Applied Sciences, Sankt Augustin, GermanyWe propose a new non-coherent multicarrier spread-spectrum system that combines orthogonal chaotic vector shift keying (OCVSK) and orthogonal frequency-division multiplexing (OFDM). The system enhances OCVSK by sending multiple groups of information sequences with the same orthogonal chaotic vector reference sequences over the selected subcarriers. Each group carries M information bits and is separated from other groups by orthogonal chaotic reference signals. We derive the information rate enhancement (IRE) and the energy saving enhancement (ESE) factors as well as the bit error rate theory of OFDM-OCVSK under additive white Gaussian noise and multipath Rayleigh fading channels and compare the results with conventional OCVSK systems. For large group numbers, the results show that the IRE and ESE factors approach M×100% and M/(M+1)×100%, respectively, and thus outperform OCVSK systems. The complexity analysis of the proposed scheme as compared with OFDM-DCSK shows a significant reduction in the number of complex multiplications required.https://ieeexplore.ieee.org/document/8424332/Orthogonal chaotic vector shift keyingorthogonal frequency division multiplexingOFDM-based DCSKOFDM-based SR-QCSKenergy efficiencyhigh information rate |
| spellingShingle | Fadhil S. Hasan Alejandro A. Valenzuela Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System IEEE Access Orthogonal chaotic vector shift keying orthogonal frequency division multiplexing OFDM-based DCSK OFDM-based SR-QCSK energy efficiency high information rate |
| title | Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System |
| title_full | Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System |
| title_fullStr | Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System |
| title_full_unstemmed | Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System |
| title_short | Design and Analysis of an OFDM-Based Orthogonal Chaotic Vector Shift Keying Communication System |
| title_sort | design and analysis of an ofdm based orthogonal chaotic vector shift keying communication system |
| topic | Orthogonal chaotic vector shift keying orthogonal frequency division multiplexing OFDM-based DCSK OFDM-based SR-QCSK energy efficiency high information rate |
| url | https://ieeexplore.ieee.org/document/8424332/ |
| work_keys_str_mv | AT fadhilshasan designandanalysisofanofdmbasedorthogonalchaoticvectorshiftkeyingcommunicationsystem AT alejandroavalenzuela designandanalysisofanofdmbasedorthogonalchaoticvectorshiftkeyingcommunicationsystem |