Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler
A Gibbs-sampler-based separation algorithm was proposed for single-channel co-frequency digital-modulated signals，which were received in non-cooperative ways.The probability density samples of unknown symbol sequences can be obtained by statistic method，and the computation complexity was not growing...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-04-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015090/ |
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| _version_ | 1841539654861455360 |
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| author | Yong YANG Dong-ling ZHANG Hua PENG Shi-long TU |
| author_facet | Yong YANG Dong-ling ZHANG Hua PENG Shi-long TU |
| author_sort | Yong YANG |
| collection | DOAJ |
| description | A Gibbs-sampler-based separation algorithm was proposed for single-channel co-frequency digital-modulated signals，which were received in non-cooperative ways.The probability density samples of unknown symbol sequences can be obtained by statistic method，and the computation complexity was not growing exponentially with the increase of channel order.With special emphasis on the separation algorithms of single pair of symbols，multiple pair of symbols and the tracking of channel responses.Moreover，the separation performance between Gibbs sampler and per-survivor processing(PSP) algorithm were analyzed and compared in detail.Simulation results show that，compared with PSP algorithm with L=4 for two co-frequency QPSK-modulated signals，Gibbs sampler can be nearly 17 times lower in computation complexity when the approximately performance is obtained. |
| format | Article |
| id | doaj-art-5e17c424ec204c04b187e789a4e2bb29 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-04-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-5e17c424ec204c04b187e789a4e2bb292025-01-14T06:46:14ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-04-013615716259692605Single-channel blind separation of co-frequency modulated signals based on Gibbs samplerYong YANGDong-ling ZHANGHua PENGShi-long TUA Gibbs-sampler-based separation algorithm was proposed for single-channel co-frequency digital-modulated signals，which were received in non-cooperative ways.The probability density samples of unknown symbol sequences can be obtained by statistic method，and the computation complexity was not growing exponentially with the increase of channel order.With special emphasis on the separation algorithms of single pair of symbols，multiple pair of symbols and the tracking of channel responses.Moreover，the separation performance between Gibbs sampler and per-survivor processing(PSP) algorithm were analyzed and compared in detail.Simulation results show that，compared with PSP algorithm with L=4 for two co-frequency QPSK-modulated signals，Gibbs sampler can be nearly 17 times lower in computation complexity when the approximately performance is obtained.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015090/single-channel blind separationGibbs samplerPSP algorithmpaired carrier multiple access |
| spellingShingle | Yong YANG Dong-ling ZHANG Hua PENG Shi-long TU Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler Tongxin xuebao single-channel blind separation Gibbs sampler PSP algorithm paired carrier multiple access |
| title | Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler |
| title_full | Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler |
| title_fullStr | Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler |
| title_full_unstemmed | Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler |
| title_short | Single-channel blind separation of co-frequency modulated signals based on Gibbs sampler |
| title_sort | single channel blind separation of co frequency modulated signals based on gibbs sampler |
| topic | single-channel blind separation Gibbs sampler PSP algorithm paired carrier multiple access |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015090/ |
| work_keys_str_mv | AT yongyang singlechannelblindseparationofcofrequencymodulatedsignalsbasedongibbssampler AT donglingzhang singlechannelblindseparationofcofrequencymodulatedsignalsbasedongibbssampler AT huapeng singlechannelblindseparationofcofrequencymodulatedsignalsbasedongibbssampler AT shilongtu singlechannelblindseparationofcofrequencymodulatedsignalsbasedongibbssampler |