无线通信中同步兼备信息传输的波形一体化设计

Waveform Integrated Design for Synchronization and Information Transmission in Wireless Communication

为了达到新一代无线通信系统提出的低延迟高可靠的性能指标,针对小数据量收发的无线通信,提出了一种同步兼备信息传输的波形一体化设计。摒弃了传统帧结构和5G协议栈的数据处理,基于具有低相关区性质的啁啾序列设计了一种新的时域序列,其兼备良好的相关性和承载信息量的功能,同时在接收端采用短时傅里叶变换来进行定时同步。仿真结果表明,所提出的一体化波形设计与现有的减少端到端时延并且保证高可靠性的方法相比,该无线通信方案的时延更低,误块率可达到10及以下。

Inorder to meet the low-latency and high-reliability performance indicators proposed by the new generation of wireless communication systems, a waveform integration design for both synchronization and information transmission is proposed for wireless communication with small data volumes in this paper. Abandoning the traditional frame structure and data processing of the 5G protocol stack, a new time-domain sequence is designed based on the chirp sequence with the property of low correlation region, which has both good correlation and the function of carrying information, while at the receiving end. Timing synchronization is performed using a short-time Fourier transform. The simulation results show that the proposed integrated waveform design has lower delay compared with the existing methods to reduce end-to-end delay and ensure high reliability, and the block error rate can reach 10and the following.