WSN Multi-hop Routing Algorithm Based on Path Quality Comparison in New Energy Consumption Distance Node Relation Model

摘要

The wireless sensor network is an important technology of the Internet of things. In the sensor network, the limited energy and uneven distribution of nodes lead to unbalanced load of nodes, and reduce the quality of network and the survival time. In order to eliminate the lack of space distance relationships between two nodes, this paper makes an improvement to the node relation model and proposes the concept of Energy Consumption Distance (ECD). According to the relation model, a multi-hop routing algorithm based on path goodness degree (MRPGD) is proposed. The core idea of the algorithm is that the path lifetime combines with the data redundancy to form the link quality index after the path failure, and the link quality index is the path goodness degree (PGD). The source node uses the higher PGD path to return data, and accurately calculates the transmission paths of all nodes in the network, which can completely draw the network topology. This method can effectively suppress the hot spots in the network and effectively prolong the lifetime. The results show that the proposed algorithm has a 36% increase in the network lifetime compared with the related algorithms.