基于扇区差值的60 GHz毫米波的空间复用方法研究

Research on Spatial Reuse for 60 GHz Wireless Communication System Based on Sector Fifference

对60 GHz无线个域网中空间复用技术进行了研究。提出了一种基于扇区差值的空间复用的新方法。利用PCP/AP收集到的STA用于在服务期中使用的扇区ID信息,建立波束形成信息表。PCP/AP通过查找已分配服务期与候选服务期的链路STA及其对应在链路中使用的扇区ID信息,计算出两个服务期中链路STA的最小扇区差值。根据最小扇区差值来判断所选SP中的链路是否能够进行空间复用;进而实现根据最小扇区差值找出与当前候选服务期进行最佳空间复用的已分配服务期。仿真表明,基于扇区差值的空间复用方法能够获得更高的空间复用增益。

Spatial reuse about 60 GHz wireless personal area network communication was studied. A novel spa- tial reuse strategy based on the difference of the sector ID used in different SPs （ Service Period） was proposed. In this scheme, the PCP/AP was able to establish a beamforming information table based on the collected sector ID in- formation used in the existing SP and the candidate SP, and calculate the minimum sector difference accordingly. Then, the PCP/AP decided whether the links in the selected SPs could communicate simultaneously and chooses the best existing SP for the candidate SP. Simulation results show that, the proposed strategy outperforms the blink selection method.