摘要
基于多方向天线阵列的同步无线Mesh网络在节点满足全向覆盖的同时实现了各方向天线的高增益与天线之间的动态切换,并大幅提高整个网络的吞吐量和覆盖范围。鉴于此,提出了一种基于上述多方向天线阵列的同步无线Mesh网络下的信标收发技术,并针对多方向天线阵列的多方向覆盖与天线之间的切换特性对时间帧结构、节点多方向信标发送的天线号序列生成算法、信标结构、Hello时隙的使用过程进行了详细设计。通过该技术的使用,网络内所有已入网节点均能够在每个发送信标的时刻安排合适的天线,尽可能降低了未入网节点在接收信标时出错的概率。
The high gain in each antenna and the dynamic switch among multi antennas are obtained in the synchronized wireless mesh network based on multi-sector antenna array, and the throughput and the covered range are extremely improved. A kind of hello receiving and transmitting technique based on multi-sector antenna array is issued, and the time frame structure, the antenna number generation algorithm of multi-sector hello transmitting, hello packet structure, the use of hello slot are designed in detail according to the feature of the multi-sector antenna array. Due to the use of the hello receiving and transmitting tech- nique, the appropriate antennas is scheduled in the hello slot by all the active nodes of the network and the error probability of re- ceiving hello packet has greatly reduced in the new nodes which are about to access the network.
出处
《计算机工程与设计》
CSCD
北大核心
2014年第3期765-770,共6页
Computer Engineering and Design
