Injection Coding With Spectral Shaping Capability
In digital transmission systems that involve pulse amplitude modulation (PAM), channel coding is useful for spectral shaping by concentrating the frequency energy of the transmitted information towards a predetermined range of the frequency spectrum, or making it have low power content at such frequ...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9312603/ |
| _version_ | 1811210751116836864 |
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| author | Opeyemi O. Ogunyanda Thokozani Shongwe Theo G. Swart |
| author_facet | Opeyemi O. Ogunyanda Thokozani Shongwe Theo G. Swart |
| author_sort | Opeyemi O. Ogunyanda |
| collection | DOAJ |
| description | In digital transmission systems that involve pulse amplitude modulation (PAM), channel coding is useful for spectral shaping by concentrating the frequency energy of the transmitted information towards a predetermined range of the frequency spectrum, or making it have low power content at such frequencies, so as to suit the frequency characteristics of the communication channel. We thus present a permutation coding system with injections that can exhibit spectral shaping at rational sub-multiples of the symbol frequency. We also present a mathematical expression that allows for the prediction of low energy positions in the codebook’s spectrum. Upper and lower bounds for the low energy spectrum were also determined. Due to the way the injections are introduced, it gives the scheme an advantage of achieving higher symbol rate, when compared with conventional permutation coding systems. |
| first_indexed | 2024-04-12T05:00:55Z |
| format | Article |
| id | doaj.art-04a0e419554142329601170e348d8781 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-12T05:00:55Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-04a0e419554142329601170e348d87812022-12-22T03:47:00ZengIEEEIEEE Access2169-35362021-01-019199391994610.1109/ACCESS.2020.30490179312603Injection Coding With Spectral Shaping CapabilityOpeyemi O. Ogunyanda0https://orcid.org/0000-0003-4450-713XThokozani Shongwe1https://orcid.org/0000-0002-3011-7600Theo G. Swart2https://orcid.org/0000-0002-1525-7728Department of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg, South AfricaDepartment of Electrical and Electronic Engineering Technology, University of Johannesburg, Johannesburg, South AfricaDepartment of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg, South AfricaIn digital transmission systems that involve pulse amplitude modulation (PAM), channel coding is useful for spectral shaping by concentrating the frequency energy of the transmitted information towards a predetermined range of the frequency spectrum, or making it have low power content at such frequencies, so as to suit the frequency characteristics of the communication channel. We thus present a permutation coding system with injections that can exhibit spectral shaping at rational sub-multiples of the symbol frequency. We also present a mathematical expression that allows for the prediction of low energy positions in the codebook’s spectrum. Upper and lower bounds for the low energy spectrum were also determined. Due to the way the injections are introduced, it gives the scheme an advantage of achieving higher symbol rate, when compared with conventional permutation coding systems.https://ieeexplore.ieee.org/document/9312603/Frequency spectruminjectionPAMpermutation codespower spectral densitypulse amplitude modulation |
| spellingShingle | Opeyemi O. Ogunyanda Thokozani Shongwe Theo G. Swart Injection Coding With Spectral Shaping Capability IEEE Access Frequency spectrum injection PAM permutation codes power spectral density pulse amplitude modulation |
| title | Injection Coding With Spectral Shaping Capability |
| title_full | Injection Coding With Spectral Shaping Capability |
| title_fullStr | Injection Coding With Spectral Shaping Capability |
| title_full_unstemmed | Injection Coding With Spectral Shaping Capability |
| title_short | Injection Coding With Spectral Shaping Capability |
| title_sort | injection coding with spectral shaping capability |
| topic | Frequency spectrum injection PAM permutation codes power spectral density pulse amplitude modulation |
| url | https://ieeexplore.ieee.org/document/9312603/ |
| work_keys_str_mv | AT opeyemioogunyanda injectioncodingwithspectralshapingcapability AT thokozanishongwe injectioncodingwithspectralshapingcapability AT theogswart injectioncodingwithspectralshapingcapability |