Channel estimation in OFDM multipath fading channel systems according to modulation schemes
Orthogonal Frequency Division Multiplexing system (OFDM) is a very popular communication technique. It is applied nowadays in several wireless network modern systems. Wireless communication system has some limitations; one of them is Multi Path Fading Channel. This issue leads to impact and deterior...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Science Publishing Corporation
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73351/ http://psasir.upm.edu.my/id/eprint/73351/1/OFDM.pdf |
| _version_ | 1848857263512485888 |
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| author | Latip, Rohaya Alaa, Abdullah Al-Saadi Muhammed, Abdullah Abd Wahab, Mohd Helmy |
| author_facet | Latip, Rohaya Alaa, Abdullah Al-Saadi Muhammed, Abdullah Abd Wahab, Mohd Helmy |
| author_sort | Latip, Rohaya |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Orthogonal Frequency Division Multiplexing system (OFDM) is a very popular communication technique. It is applied nowadays in several wireless network modern systems. Wireless communication system has some limitations; one of them is Multi Path Fading Channel. This issue leads to impact and deteriorate data signal severely which causes the inter channel interferences (ICI). Therefore, our paper is specifically focused on study of the importance of applying channel estimation in OFDM system which leads to be close to an accurate data. Basically, there are many types of channel estimation techniques, e.g., Least Square Error Estimation (LSE) and Minimum Mean-Square (MMSE). In our study, we utilised LSE and proved the necessity of applying channel estimation in multi path fading channel based on QPSK modulation scheme. We verify that by applying simulation codes in Matlab. Moreover, we make a comparison by sending data, e.g., Baboon image with and without channel estimation technique. Our study is to proof the importance of channel estimation with multi path fading channel in OFDM technique. |
| first_indexed | 2025-11-15T11:54:46Z |
| format | Article |
| id | upm-73351 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:54:46Z |
| publishDate | 2018 |
| publisher | Science Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-733512020-11-10T07:27:00Z http://psasir.upm.edu.my/id/eprint/73351/ Channel estimation in OFDM multipath fading channel systems according to modulation schemes Latip, Rohaya Alaa, Abdullah Al-Saadi Muhammed, Abdullah Abd Wahab, Mohd Helmy Orthogonal Frequency Division Multiplexing system (OFDM) is a very popular communication technique. It is applied nowadays in several wireless network modern systems. Wireless communication system has some limitations; one of them is Multi Path Fading Channel. This issue leads to impact and deteriorate data signal severely which causes the inter channel interferences (ICI). Therefore, our paper is specifically focused on study of the importance of applying channel estimation in OFDM system which leads to be close to an accurate data. Basically, there are many types of channel estimation techniques, e.g., Least Square Error Estimation (LSE) and Minimum Mean-Square (MMSE). In our study, we utilised LSE and proved the necessity of applying channel estimation in multi path fading channel based on QPSK modulation scheme. We verify that by applying simulation codes in Matlab. Moreover, we make a comparison by sending data, e.g., Baboon image with and without channel estimation technique. Our study is to proof the importance of channel estimation with multi path fading channel in OFDM technique. Science Publishing Corporation 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73351/1/OFDM.pdf Latip, Rohaya and Alaa, Abdullah Al-Saadi and Muhammed, Abdullah and Abd Wahab, Mohd Helmy (2018) Channel estimation in OFDM multipath fading channel systems according to modulation schemes. International Journal of Engineering and Technology (UAE), 7 (4.31). 368 - 374. ISSN 2227-524X https://www.sciencepubco.com/index.php/ijet/article/view/23714 10.14419/ijet.v7i4.31.23714 |
| spellingShingle | Latip, Rohaya Alaa, Abdullah Al-Saadi Muhammed, Abdullah Abd Wahab, Mohd Helmy Channel estimation in OFDM multipath fading channel systems according to modulation schemes |
| title | Channel estimation in OFDM multipath fading channel systems according to modulation schemes |
| title_full | Channel estimation in OFDM multipath fading channel systems according to modulation schemes |
| title_fullStr | Channel estimation in OFDM multipath fading channel systems according to modulation schemes |
| title_full_unstemmed | Channel estimation in OFDM multipath fading channel systems according to modulation schemes |
| title_short | Channel estimation in OFDM multipath fading channel systems according to modulation schemes |
| title_sort | channel estimation in ofdm multipath fading channel systems according to modulation schemes |
| url | http://psasir.upm.edu.my/id/eprint/73351/ http://psasir.upm.edu.my/id/eprint/73351/ http://psasir.upm.edu.my/id/eprint/73351/ http://psasir.upm.edu.my/id/eprint/73351/1/OFDM.pdf |