太赫兹超高速无线通信系统网络层算法探索

Exploratory research on network layer algorithm for Terahertz ultra-high data rate wireless communication system

为解决现有无线网络的网络层无法匹配太赫兹超高速物理层(PHY)和媒体访问控制层(MAC)的问题,提出了一种新的太赫兹超高速无线网络层算法(PCNT)。PCNT算法通过跨层信息交互,实现了数据的聚合,加快了端到端数据的传输,从而获得更高的网络端到端吞吐量。通过仿真结果表明,采用新算法可以实现约12.6 Gbps的端到端吞吐量,而未采用新算法时仅为5.7 Gbps;同时,在端到端平均时延以及丢包率的性能上也有较大提升。PCNT新算法的提出为将来太赫兹超高速无线网络的网络层协议算法的进一步研究提供了有力的支持。

A new ultra high-speed wireless network layer algorithm—PCNT(Packet-Convergencebased Network) is presented in order to solve the problem that the existing network layer could not match the Terahertz(THz) ultrafast physical layer(PHY) and Media Access Control layer(MAC). PCNT algorithm achieves the data aggregation by exchanging cross-layer information. It accelerates the end-to-end data rate and obtains a higher end-to-end system throughput. The simulation results show that, the new algorithm can achieve about 12.6 Gbps end-to-end system throughput which is 1.21 times of that of 5.7 Gbps when the new algorithm is not used. At the same time, the performances of average end-to-end delay and packet loss rate are also greatly improved. The new algorithm PCNT can provide significant support to the research of network layer protocol for the terahertz ultra-high data rate wireless networks in the future.