Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel
In this paper, the performance of frequency hopping spread spectrum systems employing noncoherent reception and transmission diversity is analyzed for frequency selective Rayleigh fading (FSRF) channel. Two different types of frequency diversity systems, fast frequency hopping (FFH) system and a mu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2006-09-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1787 |
| _version_ | 1797984889781354496 |
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| author | Maher K. Al-Azawi Maha George Zia Amal M. Noori |
| author_facet | Maher K. Al-Azawi Maha George Zia Amal M. Noori |
| author_sort | Maher K. Al-Azawi |
| collection | DOAJ |
| description |
In this paper, the performance of frequency hopping spread spectrum systems employing noncoherent reception and transmission diversity is analyzed for frequency selective Rayleigh fading (FSRF) channel.
Two different types of frequency diversity systems, fast frequency hopping (FFH) system and a multicarrier frequency hopping (MCFH) system are investigated. In order to combine received signal from transmit diversity channel, the optimum diversity-combining rule based on the maximum-likelihood criterion is described.
MCFH systems are found to outperform FFH systems when the channel delay spread ratio is severe at the same diversity order at low error rate. The optimum normalized frequency deviation for MCFH systems is found to increase with delay-spread ratio.
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| first_indexed | 2024-04-11T07:10:09Z |
| format | Article |
| id | doaj.art-636efa71b460434dac49f202f5312ec6 |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T07:10:09Z |
| publishDate | 2006-09-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-636efa71b460434dac49f202f5312ec62022-12-22T04:38:15ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252006-09-01103Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading ChannelMaher K. Al-Azawi0Maha George Zia1Amal M. Noori2Electrical Engineering Dept., College of Eng., Al-Mustansiriya University, Baghdad, IraqElectrical Engineering Dept., College of Eng., Al-Mustansiriya University, Baghdad, IraqElectrical Engineering Dept., College of Engineering, Al-Mustansiriya University, Baghdad, Iraq In this paper, the performance of frequency hopping spread spectrum systems employing noncoherent reception and transmission diversity is analyzed for frequency selective Rayleigh fading (FSRF) channel. Two different types of frequency diversity systems, fast frequency hopping (FFH) system and a multicarrier frequency hopping (MCFH) system are investigated. In order to combine received signal from transmit diversity channel, the optimum diversity-combining rule based on the maximum-likelihood criterion is described. MCFH systems are found to outperform FFH systems when the channel delay spread ratio is severe at the same diversity order at low error rate. The optimum normalized frequency deviation for MCFH systems is found to increase with delay-spread ratio. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1787. |
| spellingShingle | Maher K. Al-Azawi Maha George Zia Amal M. Noori Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel Journal of Engineering and Sustainable Development . |
| title | Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel |
| title_full | Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel |
| title_fullStr | Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel |
| title_full_unstemmed | Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel |
| title_short | Fast and Multicarriar Frequency Hopping Signals overFrequency Selective Rayleigh Fading Channel |
| title_sort | fast and multicarriar frequency hopping signals overfrequency selective rayleigh fading channel |
| topic | . |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1787 |
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