在PEGASIS建链方法的基础上提出了一种改进的建链方法;在此基础上提出了一种基于双层链结构并由基站集中控制的负载均衡、能量有效的路由算法(LBEERA),此算法充分利用了簇状路由算法和链状路由算法的优点。LBEERA算法将网络划分为多个簇,每个簇的节点组成一条低层链,每条链的链头节点形成一条高层链。仿真试验发现,相对于LEACH算法和PEGASIS算法,LBEERA算法增加了网络生存时间,减少了包传输时延。 Based on the PEGASIS link building method, an improved link building method is proposed. Based on this, a load balancing and energy efficient routing algorithm (LBEERA) based on double-layer link and centrally controlled by the base station is proposed. The algorithm makes full use of the advantages of cluster routing algorithm and chain routing algorithm. The LBEERA algorithm divides the network into several clusters. Each cluster node forms a low-level chain, and the chain head node of each chain forms a high-level chain. Simulation results show that compared with LEACH algorithm and PEGASIS algorithm, LBEERA algorithm increases network lifetime and reduces packet transmission delay.