期刊
IEEE TRANSACTIONS ON COMMUNICATIONS
卷 70, 期 6, 页码 3760-3773出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCOMM.2022.3169214
关键词
Indexes; Modulation; Chaotic communication; Communication systems; OFDM; Wireless communication; Complexity theory; Differential chaos shift keying (DCSK); spectrum efficiency; hybrid index modulation; additive white Gaussian noise (AWGN) channel; multipath Rayleigh fading channel
资金
- NSF of China [62071131]
- Guangdong Natural Science Funds for Distinguished Young Scholar [2022B1515020086]
- NSF of Guangdong Province [2019A1515011465]
- Open Research Fund of the State Key Laboratory of Integrated Services Networks [ISN22-23]
A multi-carrier differential chaos shift keying communication system with hybrid index modulation is proposed to boost the transmission efficiency in wireless communication systems. The system utilizes a pair of orthogonal signals to represent active and inactive subcarriers, allowing for the transmission of information bits using all subcarriers. The theoretical analysis and Monte-Carlo simulations verify the superiority of the proposed system.
To realize high energy-efficient, high spectrum-efficient, and high-throughput data transmission, a multi-carrier differential chaos shift keying communication system with hybrid index modulation, referred to as HIM-MC-DCSK system, is proposed in this paper. In the HIM-MC-DCSK system, we intelligently integrate the carrier-number-index technique and carrier-index technique into the MC-DCSK modulation in order to significantly boost the transmission efficiency in wireless communication systems. Especially, we use a pair of orthogonal signals to represent the active and inactive subcarriers in the HIM-MC-DCSK system so as to exploit all the subcarriers to transmit information bits. In addition, the theoretical bit-error-rate (BER) expressions of the HIM-MC-DCSK system are derived over additive white Gaussian noise (AWGN) and multipath Rayleigh fading channels. Also, the data rate, spectrum efficiency, energy efficiency, and complexity of the proposed system are carefully analyzed. Monte-Carlo simulations not only verify the accuracy of the theoretical analysis but also illustrate the superiority of the proposed system.
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