Code index modulated multi-carrier M-ary differential chaos shift keying (CIM-MC-M-DCSK) system not only inherits low-power and low-complexity advantages of the conventional DCSK system, but also significantly increases the transmission rate. This feature is of particular importance to Internet of Things (IoT) with trillions of low-cost devices. In particular, for e-health IoT applications, an efficient transmission scheme is designed to solve the challenge of the limited battery capacity for numerous user equipments served by one base station. In this paper, a new multiple-input-single-output simultaneous wireless information and power transfer (MISO-SWIPT) scheme for CIM-MC-M-DCSK system is proposed by utilizing orthogonal characteristic of chaotic signals with different initial values. The proposed system adopts power splitting mode, which is very promising for simultaneously providing energy and transmitting information of the user equipments without any external power supply. In particular, the new system can achieve desirable anti-multipath-fading capability without using channel estimator. Moreover, the analytical bit-error-rate expression of the proposed system is derived over multipath Rayleigh fading channels. Furthermore, the spectral efficiency and energy efficiency of the proposed system are analyzed. Simulation results not only validate the analytical expressions, but also demonstrate the superiority of the proposed system.

中文翻译：

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用于电子医疗物联网的 MISO-SWIPT 辅助码索引调制多载波 M-DCSK 系统的设计

码索引调制多载波多载波差分混沌键控（CIM-MC-M-DCSK）系统不仅继承了传统DCSK系统低功耗、低复杂度的优点，而且显着提高了传输速率。此功能对于拥有数万亿个低成本设备的物联网 (IoT) 尤为重要。特别是对于电子健康物联网应用，设计了一种高效的传输方案来解决一个基站服务的众多用户设备的电池容量有限的挑战。在本文中，利用具有不同初始值的混沌信号的正交特性，提出了一种新的用于CIM-MC-M-DCSK系统的多输入单输出同时无线信息和功率传输（MISO-SWIPT）方案。所提出的系统采用功率分配模式，这对于同时提供能量和传输用户设备的信息而无需任何外部电源是非常有前景的。特别是，新系统可以在不使用信道估计器的情况下实现理想的抗多径衰落能力。此外，所提出系统的分析误码率表达式是在多径瑞利衰落信道上导出的。此外，分析了所提出系统的频谱效率和能量效率。仿真结果不仅验证了解析表达式，而且证明了所提出系统的优越性。新系统可以在不使用信道估计器的情况下实现理想的抗多径衰落能力。此外，所提出系统的分析误码率表达式是在多径瑞利衰落信道上导出的。此外，分析了所提出系统的频谱效率和能量效率。仿真结果不仅验证了解析表达式，而且证明了所提出系统的优越性。新系统可以在不使用信道估计器的情况下实现理想的抗多径衰落能力。此外，所提出系统的分析误码率表达式是在多径瑞利衰落信道上导出的。此外，分析了所提出系统的频谱效率和能量效率。仿真结果不仅验证了解析表达式，而且证明了所提出系统的优越性。