基于多方向天线阵列的单跳网络性能优化设计

Higher bandwidth technique of one hop network based on multi-sector antenna array

多方向天线阵列使用多个高增益定向天线进行多方向覆盖，其通信距离远，还可以实现天线的自动扫描与对准，因而便于快速部署，但现有基于多方向天线阵列的同步无线Mesh网络协议侧重于多跳组网功能设计，其单跳网络的通信能力不足。对上述同步无线Mesh网络协议进行了功能与性能优化，提出了一种基于多方向天线阵列的并且能够大幅提升单跳远距离通信能力的同步无线Mesh网络技术方案。性能分析结果表明，优化后的时间帧结构设计与数据传输规程设计可以使基于多方向天线阵列的单跳网络的数据传输效率比现有方案提升16％-19％。

Multiple high gain directional antennas which covers diverse areas are used in nmlti-sector antenna array to acquire the farther communication distance, the automatic antenna scaning and aiming capability, and the convenience to emergent deploy, but the key of the existing synchronized wireless mesh network protocol based on it focus on the multi hop network, the band- width is not perfect. The mentioned synchronized wireless mesh network protocol is simplified and optimized, the higher band- width technique of one hop network based on multi-sector antenna array which is fit to communicate in the far distance is pro- duced. The performance analysis result shows that the ability of the communication in one hop network increases 16% to 19% than the existing scheme by the new design of time frame structure and data transmission.