Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems
Frequency-hopping spread-spectrum has been widely gaining interest due to its commercial and military applications. As there is a demand for growth of wireless communication, it does not allow any room for error. The performance of the Frequency Hopped Multiple Access System is investigated. Various...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2019
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| Online Access: | http://hdl.handle.net/10356/78265 |
| _version_ | 1824454414388166656 |
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| author | Muhammad Faizal Razali |
| author2 | Teh Kah Chan |
| author_facet | Teh Kah Chan Muhammad Faizal Razali |
| author_sort | Muhammad Faizal Razali |
| collection | NTU |
| description | Frequency-hopping spread-spectrum has been widely gaining interest due to its commercial and military applications. As there is a demand for growth of wireless communication, it does not allow any room for error. The performance of the Frequency Hopped Multiple Access System is investigated. Various fading systems will be inducted in this report to see how they affect the frequency-hopped multiple access system. Following that we introduce multiple access interference to simulate and study the result of the bit error rate (BER) when multiple users and different number of frequency bands are included. We include five diversity combining techniques and simulate the results in order to study if they help improve the BER of the FHMA system. Based on the Matlab simulations, the addition of diversity combining techniques helps to improve the BER of the system. Although the system gives the best performance under AWGN, we choose to only deal with Rician and Rayleigh fading to simulate the real-life environment where there are multiple scattered paths. We conclude that the clipper receiver technique provides the best BER performance for signal-to-noise ratio for a certain decibel range. The number of frequency hops per symbol also helps in the improvement of the BER. The results also prove that having more frequency hops per symbol helps improve the performance of the system. |
| first_indexed | 2025-02-19T03:21:56Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/78265 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:21:56Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/782652023-07-07T16:42:52Z Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems Muhammad Faizal Razali Teh Kah Chan Li Kwok Hung School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Frequency-hopping spread-spectrum has been widely gaining interest due to its commercial and military applications. As there is a demand for growth of wireless communication, it does not allow any room for error. The performance of the Frequency Hopped Multiple Access System is investigated. Various fading systems will be inducted in this report to see how they affect the frequency-hopped multiple access system. Following that we introduce multiple access interference to simulate and study the result of the bit error rate (BER) when multiple users and different number of frequency bands are included. We include five diversity combining techniques and simulate the results in order to study if they help improve the BER of the FHMA system. Based on the Matlab simulations, the addition of diversity combining techniques helps to improve the BER of the system. Although the system gives the best performance under AWGN, we choose to only deal with Rician and Rayleigh fading to simulate the real-life environment where there are multiple scattered paths. We conclude that the clipper receiver technique provides the best BER performance for signal-to-noise ratio for a certain decibel range. The number of frequency hops per symbol also helps in the improvement of the BER. The results also prove that having more frequency hops per symbol helps improve the performance of the system. Bachelor of Engineering (Information Engineering and Media) 2019-06-14T05:12:31Z 2019-06-14T05:12:31Z 2019 Final Year Project (FYP) http://hdl.handle.net/10356/78265 en Nanyang Technological University 63 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing Muhammad Faizal Razali Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems |
| title | Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems |
| title_full | Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems |
| title_fullStr | Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems |
| title_full_unstemmed | Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems |
| title_short | Novel receiver design for suppression of frequency-hopped multiple-access (FHMA) systems |
| title_sort | novel receiver design for suppression of frequency hopped multiple access fhma systems |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing |
| url | http://hdl.handle.net/10356/78265 |
| work_keys_str_mv | AT muhammadfaizalrazali novelreceiverdesignforsuppressionoffrequencyhoppedmultipleaccessfhmasystems |