定向毫米波网络邻居发现协议  

Protocol of neighbor discovery in directional millimeter wave wireless networks

作　　者：梁仕杰 赵海涛[2] 张姣 陈海涛[2] 魏急波[2] 王俊芳[1] LIANG Shijie;ZHAO Haitao;ZHANG Jiao;CHEN Haitao;WEI Jibo;WANG Junfang(The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China;College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]国防科技大学电子科学学院,湖南长沙410073

出　　处：《国防科技大学学报》2024年第1期160-169,共10页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(62001483,61931020);湖南省自然科学基金杰青资助项目(2022JJ10068)。

摘　　要：针对定向毫米波网络各节点间无波束方向先验信息导致邻居发现困难的问题,提出了一种基于盲交汇算法的邻居发现协议,推导了邻居发现过程中时隙长度、波束个数与邻居发现时间之间的理论关系。进一步,为了缩短邻居发现的时间,在盲交汇算法的邻居发现协议的基础上,提出了基于位置预测的邻居发现协议。仿真结果表明,基于盲交汇算法的邻居发现协议的最长邻居发现时间小于无协调的定向邻居发现协议,波束个数N接近2n(2n-1<N≤2n,n>1,n∈Z)时,平均邻居发现时间低于无协调的定向邻居发现算法。此外,基于位置预测的邻居发现协议可以有效缩短邻居发现时间。Aiming at the problem that it is difficult to discover neighbors without prior information of sector direction between nodes in the directional millimeter wave network,a neighbor discovery protocol base on blind rendezvous algorithm was proposed and the theoretical relationship among slot length,the number of sectors and the time of neighbors discovery was derived.Furthermore,in order to shorten the time of neighbor discovery base on blind rendezvous algorithm,a neighbor discovery protocol based on location prediction was proposed.Simulation results showed that the longest discovery time of neighbor discovery protocol base on blind rendezvous algorithm is less than that of ODND(oblivious directional neighbor discovery)protocol and average discovery time of neighbor discovery protocol base on blind rendezvous algorithm is less than ODND protocol when the number of sectors N is close to 2 n(2 n-1<N≤2 n,n>1,n∈Z).In addition,neighbor discovery protocol based on location prediction can effectively shorten neighbor discovery time.

关 键 词：毫米波 盲交汇 邻居发现 MAC协议 

分 类 号：TN914[电子电信—通信与信息系统]