Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals
Aiming at the problem of optimal detection of mixed signal symbol sequences, on the basis of co-frequency mixed receiving baseband signal model, sufficient statistics for joint maximum likelihood blind detection were derived, and the optimal receiver design of “mixed waveform matched filtering and s...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2024-12-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024265/ |
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| _version_ | 1832595487262244864 |
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| author | YU Hongyi ZHA Renpeng SHEN Zhixiang SHEN Caiyao HU Yunpeng |
| author_facet | YU Hongyi ZHA Renpeng SHEN Zhixiang SHEN Caiyao HU Yunpeng |
| author_sort | YU Hongyi |
| collection | DOAJ |
| description | Aiming at the problem of optimal detection of mixed signal symbol sequences, on the basis of co-frequency mixed receiving baseband signal model, sufficient statistics for joint maximum likelihood blind detection were derived, and the optimal receiver design of “mixed waveform matched filtering and symbol rate dual sampling” was given. Based on the sufficient statistics model, a lower bound on the performance of single-channel blind demodulation for co-frequency mixed signals was derived using Forney’s method. Since the complexity of the optimal receiver grows exponentially with the equivalent symbol rate sampling channel length, the impact of the truncation error on the blind demodulation performance was further analyzed for the channel truncation problem in practical applications. The result shows that the simulation results of the optimal receiver coincide with the theoretical performance analysis results, verifying the reasonableness of the derived performance bounds. |
| format | Article |
| id | doaj-art-a1313760ca614367867f8310593fb900 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a1313760ca614367867f8310593fb9002025-01-18T19:00:06ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2024-12-014514215280268669Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signalsYU HongyiZHA RenpengSHEN ZhixiangSHEN CaiyaoHU YunpengAiming at the problem of optimal detection of mixed signal symbol sequences, on the basis of co-frequency mixed receiving baseband signal model, sufficient statistics for joint maximum likelihood blind detection were derived, and the optimal receiver design of “mixed waveform matched filtering and symbol rate dual sampling” was given. Based on the sufficient statistics model, a lower bound on the performance of single-channel blind demodulation for co-frequency mixed signals was derived using Forney’s method. Since the complexity of the optimal receiver grows exponentially with the equivalent symbol rate sampling channel length, the impact of the truncation error on the blind demodulation performance was further analyzed for the channel truncation problem in practical applications. The result shows that the simulation results of the optimal receiver coincide with the theoretical performance analysis results, verifying the reasonableness of the derived performance bounds.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024265/single channel blind separationoptimal receiversufficient statisticsblind separation performance boundarypaired carrier multiple access |
| spellingShingle | YU Hongyi ZHA Renpeng SHEN Zhixiang SHEN Caiyao HU Yunpeng Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals Tongxin xuebao single channel blind separation optimal receiver sufficient statistics blind separation performance boundary paired carrier multiple access |
| title | Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals |
| title_full | Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals |
| title_fullStr | Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals |
| title_full_unstemmed | Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals |
| title_short | Optimal receiver and blind demodulation performance bounds for single channel co-frequency mixed signals |
| title_sort | optimal receiver and blind demodulation performance bounds for single channel co frequency mixed signals |
| topic | single channel blind separation optimal receiver sufficient statistics blind separation performance boundary paired carrier multiple access |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024265/ |
| work_keys_str_mv | AT yuhongyi optimalreceiverandblinddemodulationperformanceboundsforsinglechannelcofrequencymixedsignals AT zharenpeng optimalreceiverandblinddemodulationperformanceboundsforsinglechannelcofrequencymixedsignals AT shenzhixiang optimalreceiverandblinddemodulationperformanceboundsforsinglechannelcofrequencymixedsignals AT shencaiyao optimalreceiverandblinddemodulationperformanceboundsforsinglechannelcofrequencymixedsignals AT huyunpeng optimalreceiverandblinddemodulationperformanceboundsforsinglechannelcofrequencymixedsignals |