论文标题
SR-DCSK合作通信系统，具有代码索引调制：6G新收音机的新设计
SR-DCSK Cooperative Communication System with Code Index Modulation: A New Design for 6G New Radios
论文作者
论文摘要
本文提出了一个高通量的简短参考差异偏移键合键合，合作通信系统，借助代码索引调制，称为CIM-SR-DCSK-CC系统。在提议的CIM-SR-DCSK-CC系统中，源首次将信息位传输到继电器和目的地，而继电器不仅将源信息位转发，而且在第二次插槽中将新的信息位传递到目的地。具体而言，继电器采用$ n $ order walsh代码来携带其他$ {{\ log} _ {2}} n $信息位，这些信息位叠加到携带解码源信息位的SR-DCSK信号上。随后，携带源和继电器信息位的叠加信号将传输到目的地。此外，提出的CIM-SR-DCSK-CC系统的理论位错误率（BER）表达式是在加性白色高斯噪声（AWGN）和多径Rayleigh淡化通道上得出的。与常规的DCSK-CC系统和SR-DCSK-CC系统相比，提出的CIM-SR-DCSK-CC系统可以显着改善吞吐量而不会降低任何BER性能。结果，对于6G启用的低功率和高利率通信的应用，提出的系统非常有前途。
This paper proposes a high-throughput short reference differential chaos shift keying cooperative communication system with the aid of code index modulation, referred to as CIM-SR-DCSK-CC system. In the proposed CIM-SR-DCSK-CC system, the source transmits information bits to both the relay and destination in the first time slot, while the relay not only forwards the source information bits but also sends new information bits to the destination in the second time slot. To be specific, the relay employs an $N$-order Walsh code to carry additional ${{\log }_{2}}N$ information bits, which are superimposed onto the SR-DCSK signal carrying the decoded source information bits. Subsequently, the superimposed signal carrying both the source and relay information bits is transmitted to the destination. Moreover, the theoretical bit error rate (BER) expressions of the proposed CIM-SR-DCSK-CC system are derived over additive white Gaussian noise (AWGN) and multipath Rayleigh fading channels. Compared with the conventional DCSK-CC system and SR-DCSK-CC system, the proposed CIM-SR-DCSK-CC system can significantly improve the throughput without deteriorating any BER performance. As a consequence, the proposed system is very promising for the applications of the 6G-enabled low-power and high-rate communication.
