Investigating the Performance of Coded GSIM DCSK Communication Systems over Multipath Rayleigh Fading Channel
Index modulation−based differential chaos shift keying (IM−DCSK) is a promising technique in wireless communication systems. Among all schemes, a Grouping Subcarrier Index Modulation DCSK (GSIM−DCSK) supports suit−coded modulation to improve bit error rate (BER) over a multipath Rayleigh fading chan...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Croatian Communications and Information Society (CCIS)
2024-12-01
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| Series: | Journal of Communications Software and Systems |
| Subjects: | |
| Online Access: | https://jcoms.fesb.unist.hr/10.24138/jcomss-2024-0072/ |
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| Summary: | Index modulation−based differential chaos shift keying (IM−DCSK) is a promising technique in wireless communication systems. Among all schemes, a Grouping Subcarrier Index Modulation DCSK (GSIM−DCSK) supports suit−coded modulation to improve bit error rate (BER) over a multipath Rayleigh fading channel, known as Coded GSIM−DCSK (CGSIM−DCSK) system. In the proposed method, all the index modulation bits are detected at the receiver side and then converted into a bipolar form to pass them through the channel decoder system along with the soft modulated bits. The results show that CGSIM−DCSK system with two schemes that are CGSIM−DCSK1 and CGSIM−DCSK2 are improved by the proposed coding techniques, with the LDPC code barely superior to the New Radio−Polar Code (NRPC). Furthermore, the performance of CGSIM−DCSK1 outperforms that of CGSIM−DCSK2 with lower information rate. |
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| ISSN: | 1845-6421 1846-6079 |