A signal optimization strategy for next generation navigation and communication integration applications
A signal optimization strategy for next generation navigation and communication integration applications
复制标题
下一代导航和通信集成应用的信号优化策略
DOI：
10.1016/j.phycom.2021.101510
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发表时间：
2021-11
影响因子：
2.2
通讯作者：
Ruofei Ma
中科院分区：
文献类型：
--
作者：
Deyue Zou;Xinyue Li;Ruofei Ma
对于6 G和未来的通信技术，导航和通信的融合已经成为一个热门的研究课题，可以大大提高传输数据速率，并可以应用于自动驾驶汽车。在以往的研究中，将传统的全球导航卫星系统（GNSS）信号与循环码移键控（CCSK）信号相结合，设计了一种新型的组合导航通信信号。本文针对该信号设计了一种增强策略，优化CCSK信号的循环移位次数，使较大的互相关函数值与自相关函数峰值对齐，克服互相关干扰，提高通信性能。仿真结果表明，该方案不仅可以避免导航信号与通信信号之间的干扰，而且可以提高信号检测概率，降低传输误码率。以北斗B1 I信号为例，当信噪比（SNR）为-27 dB时，导航和通信信号的检测概率分别提高约11.4%和13.5%，而误符号率（SER）分别降低约16.3%和17.8%。
For 6G and future communication technologies, integration of navigation and communication has become a hot research topic, which can greatly improve the transmission data rate and can be applied to self-driving vehicles. In former research, a novel integrated navigation and communication signal has been designed by combining traditional global navigation satellite system (GNSS) and cyclic code shift keying (CCSK) signals. In this paper, we design an enhancement strategy for this signal, optimizing the number of cyclic shifts of the CCSK signal, which can make larger values of cross-correlation function align with the peak value of self-correlation function to overcome the cross-correlation interference and improve communication performance. Simulation results validate that the proposal not only can avoid interference between navigation and communication signals, but also can improve the signal detection probability and reduce the transmit error rate. Taking Beidou B1I signal as an example, when the signal to noise ratio (SNR) is set to -27 dB, the detection probabilities for the navigation and communication signals increase about 11.4% and 13.5%, respectively, while the symbol error rate (SER) for the navigation and communication signals decrease about 16.3% and 17.8%, respectively.
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DOI：
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DOI：
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发表时间：
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影响因子：
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