Performance analysis of high-rate generalized space code index modulation system
Traditional code index modulation (CIM) systems only carry information through spreading codes and constellation symbols, with low energy efficiency and spectral efficiency. However, adding phase as a unique modulation symbol to carry information has the advantage of low transmission power consumpti...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2025-01-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2025011/ |
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| author | BIAN Lina ZHANG Qianyu WU Jiayan |
| author_facet | BIAN Lina ZHANG Qianyu WU Jiayan |
| author_sort | BIAN Lina |
| collection | DOAJ |
| description | Traditional code index modulation (CIM) systems only carry information through spreading codes and constellation symbols, with low energy efficiency and spectral efficiency. However, adding phase as a unique modulation symbol to carry information has the advantage of low transmission power consumption. To fully utilize the multi-antenna lead to improve spectral efficiency, a high-rate generalized space code index modulation (HR-GS-CIM) system with low-power design was proposed. The traditional modulation symbols were replaced with the additional phase by the HR-GS-CIM system, and the genetic algorithm (GA) was used to optimize the design of the additional phase, which could acquire high energy efficiency advantage and performance advantage. At the same time, the methods of generalized and spatial indexing were introduced to jointly map select the additional phase, spreading code, and antenna lead, and a low-complexity joint mapping selection algorithm was adopted to greatly improve the system’s spectral efficiency. Furthermore, the theoretical performance of the HR-GS-CIM system was analyzed and the consistency between the theoretical and simulated performance was verified. Finally, compared with traditional CIM systems, the simulation results show that the proposed HR-GS-CIM system has significant performance gain. |
| format | Article |
| id | doaj-art-2808a9acc6dd4646920bd79feada9e3c |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-2808a9acc6dd4646920bd79feada9e3c2025-02-08T19:00:25ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012025-01-01419911082011915Performance analysis of high-rate generalized space code index modulation systemBIAN LinaZHANG QianyuWU JiayanTraditional code index modulation (CIM) systems only carry information through spreading codes and constellation symbols, with low energy efficiency and spectral efficiency. However, adding phase as a unique modulation symbol to carry information has the advantage of low transmission power consumption. To fully utilize the multi-antenna lead to improve spectral efficiency, a high-rate generalized space code index modulation (HR-GS-CIM) system with low-power design was proposed. The traditional modulation symbols were replaced with the additional phase by the HR-GS-CIM system, and the genetic algorithm (GA) was used to optimize the design of the additional phase, which could acquire high energy efficiency advantage and performance advantage. At the same time, the methods of generalized and spatial indexing were introduced to jointly map select the additional phase, spreading code, and antenna lead, and a low-complexity joint mapping selection algorithm was adopted to greatly improve the system’s spectral efficiency. Furthermore, the theoretical performance of the HR-GS-CIM system was analyzed and the consistency between the theoretical and simulated performance was verified. Finally, compared with traditional CIM systems, the simulation results show that the proposed HR-GS-CIM system has significant performance gain.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2025011/code index modulationadditional phasejoint optimizationspectral efficiency |
| spellingShingle | BIAN Lina ZHANG Qianyu WU Jiayan Performance analysis of high-rate generalized space code index modulation system Dianxin kexue code index modulation additional phase joint optimization spectral efficiency |
| title | Performance analysis of high-rate generalized space code index modulation system |
| title_full | Performance analysis of high-rate generalized space code index modulation system |
| title_fullStr | Performance analysis of high-rate generalized space code index modulation system |
| title_full_unstemmed | Performance analysis of high-rate generalized space code index modulation system |
| title_short | Performance analysis of high-rate generalized space code index modulation system |
| title_sort | performance analysis of high rate generalized space code index modulation system |
| topic | code index modulation additional phase joint optimization spectral efficiency |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2025011/ |
| work_keys_str_mv | AT bianlina performanceanalysisofhighrategeneralizedspacecodeindexmodulationsystem AT zhangqianyu performanceanalysisofhighrategeneralizedspacecodeindexmodulationsystem AT wujiayan performanceanalysisofhighrategeneralizedspacecodeindexmodulationsystem |