Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication
There are serious intersymbol interference (ISI) and signal attenuation in wireless ultraviolet communication system.Aiming at this problem,an improved constant modulus fractionally spaced equalizer (CMA-FSE) based on signal-to-noise (SNR) estimation was proposed.The algorithm combined the fractiona...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2019-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019065/ |
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| _version_ | 1841539335926579200 |
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| author | Taifei ZHAO Longfei LIU Jing WANG Liyang YANG |
| author_facet | Taifei ZHAO Longfei LIU Jing WANG Liyang YANG |
| author_sort | Taifei ZHAO |
| collection | DOAJ |
| description | There are serious intersymbol interference (ISI) and signal attenuation in wireless ultraviolet communication system.Aiming at this problem,an improved constant modulus fractionally spaced equalizer (CMA-FSE) based on signal-to-noise (SNR) estimation was proposed.The algorithm combined the fractionally spaced equalizer (FSE) and constant modulus algorithm (CMA) for blind equalization of wireless ultraviolet channels.The input SNR was measured by the mean square value of the received signal,and it was used to determine the best iterative step to ensure the convergence of the equalization algorithm.Simulation results show that the improved CMA-FSE algorithm can converge rapidly under various SNR,and it can effectively suppress ISI and improve the BER performance of the system.Compared with the existing algorithms,the improved algorithm is more useful in channel tracking and noise suppression. |
| format | Article |
| id | doaj-art-307921dfb718411793dcda4704465351 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2019-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-307921dfb718411793dcda47044653512025-01-14T07:16:32ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2019-03-014010210859725793Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communicationTaifei ZHAOLongfei LIUJing WANGLiyang YANGThere are serious intersymbol interference (ISI) and signal attenuation in wireless ultraviolet communication system.Aiming at this problem,an improved constant modulus fractionally spaced equalizer (CMA-FSE) based on signal-to-noise (SNR) estimation was proposed.The algorithm combined the fractionally spaced equalizer (FSE) and constant modulus algorithm (CMA) for blind equalization of wireless ultraviolet channels.The input SNR was measured by the mean square value of the received signal,and it was used to determine the best iterative step to ensure the convergence of the equalization algorithm.Simulation results show that the improved CMA-FSE algorithm can converge rapidly under various SNR,and it can effectively suppress ISI and improve the BER performance of the system.Compared with the existing algorithms,the improved algorithm is more useful in channel tracking and noise suppression.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019065/ultraviolet communicationintersymbol interferencechannel equalizationsignal-to-noise radio estimation |
| spellingShingle | Taifei ZHAO Longfei LIU Jing WANG Liyang YANG Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication Tongxin xuebao ultraviolet communication intersymbol interference channel equalization signal-to-noise radio estimation |
| title | Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication |
| title_full | Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication |
| title_fullStr | Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication |
| title_full_unstemmed | Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication |
| title_short | Improved CMA-FSE blind equalization algorithm for wireless ultraviolet communication |
| title_sort | improved cma fse blind equalization algorithm for wireless ultraviolet communication |
| topic | ultraviolet communication intersymbol interference channel equalization signal-to-noise radio estimation |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2019065/ |
| work_keys_str_mv | AT taifeizhao improvedcmafseblindequalizationalgorithmforwirelessultravioletcommunication AT longfeiliu improvedcmafseblindequalizationalgorithmforwirelessultravioletcommunication AT jingwang improvedcmafseblindequalizationalgorithmforwirelessultravioletcommunication AT liyangyang improvedcmafseblindequalizationalgorithmforwirelessultravioletcommunication |