{"title":"Energy Efficient Dual Index Multicarrier M-Ary Cyclic Shifted Chaotic Vector Shift Keying System","authors":"G. Bavatharani, T. Laxmikandan, T. Manimekalai","doi":"10.1002/ett.70123","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Chaotic signals are highly suitable for spread spectrum communication due to their inherent anti-jamming and anti-interference properties. Chaos-based multicarrier systems meet the increasing demands for high spectral efficiency, energy efficiency, secure, and reliable communication. However, the transmission of reference signals in these systems negatively impacts both spectral and energy efficiency. In this work, we enhance the energy efficiency of chaos-based multicarrier systems by employing index modulation with dual indexing on carriers, combined with cyclic-shifted chaotic signals. This approach not only improves energy efficiency but also reduces hardware complexity by utilizing a subset of subcarriers. Semi-analytical expressions for bit error rate (BER) over AWGN (additive white Gaussian noise) and multipath fading channels have been derived and validated through simulations. Comparative analysis reveals that the proposed system achieves significant improvement in BER performance and offers gain in energy efficiency up to a 2.5 dB over existing chaotic multicarrier systems and reduced hardware complexity in addition.</p>\n </div>","PeriodicalId":23282,"journal":{"name":"Transactions on Emerging Telecommunications Technologies","volume":"36 4","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions on Emerging Telecommunications Technologies","FirstCategoryId":"94","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ett.70123","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
Chaotic signals are highly suitable for spread spectrum communication due to their inherent anti-jamming and anti-interference properties. Chaos-based multicarrier systems meet the increasing demands for high spectral efficiency, energy efficiency, secure, and reliable communication. However, the transmission of reference signals in these systems negatively impacts both spectral and energy efficiency. In this work, we enhance the energy efficiency of chaos-based multicarrier systems by employing index modulation with dual indexing on carriers, combined with cyclic-shifted chaotic signals. This approach not only improves energy efficiency but also reduces hardware complexity by utilizing a subset of subcarriers. Semi-analytical expressions for bit error rate (BER) over AWGN (additive white Gaussian noise) and multipath fading channels have been derived and validated through simulations. Comparative analysis reveals that the proposed system achieves significant improvement in BER performance and offers gain in energy efficiency up to a 2.5 dB over existing chaotic multicarrier systems and reduced hardware complexity in addition.
期刊介绍：
ransactions on Emerging Telecommunications Technologies (ETT), formerly known as European Transactions on Telecommunications (ETT), has the following aims:
- to attract cutting-edge publications from leading researchers and research groups around the world
- to become a highly cited source of timely research findings in emerging fields of telecommunications
- to limit revision and publication cycles to a few months and thus significantly increase attractiveness to publish
- to become the leading journal for publishing the latest developments in telecommunications
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