毫米波通信中一种优化的波束搜索算法研究

波束形成技术成为毫米波无线通信的关键技术之一,其中码本搜索算法成为研究重点.IEEE802.15.3c及IEEE802.1 1ad中提出的均是基于遍历搜索的算法,这类算法随着码本数目的增加,搜索时间将变的难以接受.本文提出一种最优扇区数目波束搜索算法,该算法根据波束级码本数目,求出搜索次数最少的扇区数目,并构造相应的扇区码本,然后先在构造的扇区码本上进行搜索,再进行波束搜索.最优扇区数目波束搜索算法利用最优的扇区数目大大减小的波束搜索复杂度,减小的波束搜素所需时间.理论分析和程序仿均证明了最优扇区数目波束搜索算法的在减少搜索次数方面的有效性.

Algorithm Study of Beam Millimeter Wave Communication in An Optimized Searching

Beam forming technology has become a key technology for millimeter wave wireless communications is one of the codebook search algorithm,which has become a research focus.The IEEE802.15.3c and IEEE802.11 ad are searching algorithm based on this algorithm,along with the increase in the number of code,search time will become difficult to accept.This paper presents an optimal number of sectors beam search algorithm,the algorithm based on the beam code number,calculate search sector minimum number of times,and construct the corresponding sector codes,then to search in the construction sector codebook,then beam search.The optimal number of sectors beam search algorithm using the optimal number of beam sector greatly reduces the search complexity,reduced beam search time required.Theoretical analysis and program simulation results demonstrate the effectiveness in reducing search times the optimal number of sectors beam search algorithm.