Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System
In this paper, a modified code index modulation scheme based on the multi-carrier M-ary DCSK system, referred to as a MC-MCIM-MDCSK system, is proposed. In the proposed MC-MCIM-MDCSK system, a modified code index modulation scheme is carried out, which selects two orthogonal Walsh codes for realizin...
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MDPI AG
2025-02-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/27/3/216 |
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| author | Bin Yu Guo-Ping Jiang Hua Yang Ya-Qiong Jia Hao Liao Xin Li |
| author_facet | Bin Yu Guo-Ping Jiang Hua Yang Ya-Qiong Jia Hao Liao Xin Li |
| author_sort | Bin Yu |
| collection | DOAJ |
| description | In this paper, a modified code index modulation scheme based on the multi-carrier M-ary DCSK system, referred to as a MC-MCIM-MDCSK system, is proposed. In the proposed MC-MCIM-MDCSK system, a modified code index modulation scheme is carried out, which selects two orthogonal Walsh codes for realizing the M-ary DCSK encoder. The theoretical BER expression of the proposed system is obtained over additive white Gaussian noise (AWGN) and the multipath Rayleigh fading channels. Abundant simulation results showed that the simulation results matched the theoretical results. The energy efficiency (EE), spectrum efficiency (SE), the data rate, and the complexity of the proposed system were carefully analyzed. The BER performance of the proposed system was compared with those of other systems. It is shown that the proposed system has better BER performance than its competitors. |
| format | Article |
| id | doaj-art-aa966a1dce6c4715b5475b7bf1187d59 |
| institution | Kabale University |
| issn | 1099-4300 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj-art-aa966a1dce6c4715b5475b7bf1187d592025-08-20T03:43:27ZengMDPI AGEntropy1099-43002025-02-0127321610.3390/e27030216Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK SystemBin Yu0Guo-Ping Jiang1Hua Yang2Ya-Qiong Jia3Hao Liao4Xin Li5School of Computer Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaSchool of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaSchool of Electrical Information Engineering, Hunan Institute of Technology, Hengyang 421002, ChinaSchool of Electrical Information Engineering, Hunan Institute of Technology, Hengyang 421002, ChinaSchool of Electrical Information Engineering, Hunan Institute of Technology, Hengyang 421002, ChinaIn this paper, a modified code index modulation scheme based on the multi-carrier M-ary DCSK system, referred to as a MC-MCIM-MDCSK system, is proposed. In the proposed MC-MCIM-MDCSK system, a modified code index modulation scheme is carried out, which selects two orthogonal Walsh codes for realizing the M-ary DCSK encoder. The theoretical BER expression of the proposed system is obtained over additive white Gaussian noise (AWGN) and the multipath Rayleigh fading channels. Abundant simulation results showed that the simulation results matched the theoretical results. The energy efficiency (EE), spectrum efficiency (SE), the data rate, and the complexity of the proposed system were carefully analyzed. The BER performance of the proposed system was compared with those of other systems. It is shown that the proposed system has better BER performance than its competitors.https://www.mdpi.com/1099-4300/27/3/216chaotic communicationdifferential chaos shift keying (DCSK)multi-carriercode index modulationM-ary modulation |
| spellingShingle | Bin Yu Guo-Ping Jiang Hua Yang Ya-Qiong Jia Hao Liao Xin Li Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System Entropy chaotic communication differential chaos shift keying (DCSK) multi-carrier code index modulation M-ary modulation |
| title | Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System |
| title_full | Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System |
| title_fullStr | Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System |
| title_full_unstemmed | Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System |
| title_short | Modified Code Index Modulation Scheme Based on Multi-Carrier M-ary DCSK System |
| title_sort | modified code index modulation scheme based on multi carrier m ary dcsk system |
| topic | chaotic communication differential chaos shift keying (DCSK) multi-carrier code index modulation M-ary modulation |
| url | https://www.mdpi.com/1099-4300/27/3/216 |
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