Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation
OFDM-IM is a spatial modulation technique applied to OFDM's block subcarriers, resulting in a modified version of OFDM. Compared to traditional OFDM, OFDM-IM boasts several benefits, such as enhanced bit-error rate (BER) performance and power efficiency. When working with OFDM-IM, the specific...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Northern Technical University
2023-04-01
|
| Series: | NTU Journal of Engineering and Technology |
| Subjects: | |
| Online Access: | https://journals.ntu.edu.iq/index.php/NTU-JET/article/view/212 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849225540691558400 |
|---|---|
| author | Zainab Mohammed Abdulkareem Abdulrahman Ikram Siddiq |
| author_facet | Zainab Mohammed Abdulkareem Abdulrahman Ikram Siddiq |
| author_sort | Zainab Mohammed Abdulkareem |
| collection | DOAJ |
| description |
OFDM-IM is a spatial modulation technique applied to OFDM's block subcarriers, resulting in a modified version of OFDM. Compared to traditional OFDM, OFDM-IM boasts several benefits, such as enhanced bit-error rate (BER) performance and power efficiency. When working with OFDM-IM, the specification of subcarrier-activation-patterns (SAPs) is done by utilizing either look-up tables (LUTs) or a combinatorial approach to conform with data. However, the data-to-SAP mapping methods of both suffer from increased complexity as the number of subcarriers expands. The paper proposes a direct data-to-SAP mapping that eliminates the need for any type of look-up tables. Through the presented analysis and computer simulation results, it is demonstrated that the OFDM-IM system utilizing the proposed mapping scheme outperforms equivalent traditional OFDM-IM systems in both complexity and bit error rate (BER) performance.
|
| format | Article |
| id | doaj-art-3d671e78d2074343b50d0ef3d36ef233 |
| institution | Kabale University |
| issn | 2788-9971 2788-998X |
| language | English |
| publishDate | 2023-04-01 |
| publisher | Northern Technical University |
| record_format | Article |
| series | NTU Journal of Engineering and Technology |
| spelling | doaj-art-3d671e78d2074343b50d0ef3d36ef2332025-08-24T13:09:41ZengNorthern Technical UniversityNTU Journal of Engineering and Technology2788-99712788-998X2023-04-012110.56286/ntujet.v2i1.212213Index Modulation OFDM Systems with Direct Pattern of Subcarrier ActivationZainab Mohammed Abdulkareem0Abdulrahman Ikram Siddiq1 Northern Technical University Iraq, Technical Engineering College KirkukNorthern Technical University Iraq, Technical Engineering College Kirkuk OFDM-IM is a spatial modulation technique applied to OFDM's block subcarriers, resulting in a modified version of OFDM. Compared to traditional OFDM, OFDM-IM boasts several benefits, such as enhanced bit-error rate (BER) performance and power efficiency. When working with OFDM-IM, the specification of subcarrier-activation-patterns (SAPs) is done by utilizing either look-up tables (LUTs) or a combinatorial approach to conform with data. However, the data-to-SAP mapping methods of both suffer from increased complexity as the number of subcarriers expands. The paper proposes a direct data-to-SAP mapping that eliminates the need for any type of look-up tables. Through the presented analysis and computer simulation results, it is demonstrated that the OFDM-IM system utilizing the proposed mapping scheme outperforms equivalent traditional OFDM-IM systems in both complexity and bit error rate (BER) performance. https://journals.ntu.edu.iq/index.php/NTU-JET/article/view/212Orthogonal frequency division multiplexingsubcarrier index modulationsubcarrier activation patternbit error rate, spectral efficiency |
| spellingShingle | Zainab Mohammed Abdulkareem Abdulrahman Ikram Siddiq Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation NTU Journal of Engineering and Technology Orthogonal frequency division multiplexing subcarrier index modulation subcarrier activation pattern bit error rate, spectral efficiency |
| title | Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation |
| title_full | Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation |
| title_fullStr | Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation |
| title_full_unstemmed | Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation |
| title_short | Index Modulation OFDM Systems with Direct Pattern of Subcarrier Activation |
| title_sort | index modulation ofdm systems with direct pattern of subcarrier activation |
| topic | Orthogonal frequency division multiplexing subcarrier index modulation subcarrier activation pattern bit error rate, spectral efficiency |
| url | https://journals.ntu.edu.iq/index.php/NTU-JET/article/view/212 |
| work_keys_str_mv | AT zainabmohammedabdulkareem indexmodulationofdmsystemswithdirectpatternofsubcarrieractivation AT abdulrahmanikramsiddiq indexmodulationofdmsystemswithdirectpatternofsubcarrieractivation |