Inhomogeneous clustering multihop wireless sensor network routing protocol based on energy balance

Abstract

The invention provides an inhomogeneous clustering multihop wireless sensor network routing protocol based on energy balance. A wireless sensor network data transmission method comprises the followingsteps: voting a cluster head according to residual energy of the nodes, the distances from the nodes to a base station and the distances from the nodes to the cluster head, separately adding the nodes not becoming the cluster head to the cluster where the cluster head having the shortest distances with the nodes is located; then, constructing, by the cluster head, an optimal transmission path based on a minimum spanning tree according to the residual energy and the distance to the base station so as to find the optima next hop forwarding cluster head; and finally transmitting data to the basestation by the nodes in a single hop in the cluster and a multihop communication mode between the clusters. By adoption of the method, the energy of the nodes can be effectively saved, the energy consumption of the nodes can be balanced, and thus the life cycle of the wireless sensor network is prolonged.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and relates to a wireless sensor network data transmission method, in particular to a wireless sensor network routing protocol based on energy balance non-uniform clustering and multi-hop. Background technique [0002] Wireless Sensor Networks (WSN) is a cross product of emerging disciplines and traditional disciplines, which includes high-tech in various fields such as micro-sensors, wireless communication, low-power embedded, and biology. It is an ad hoc network composed of a large number of sensor nodes. These nodes have limited energy, computing power, and storage capacity, and because they are often deployed in areas that are difficult for people to reach, their energy is not easy to be supplemented or replaced. Through wireless communication, the nodes in the network can transmit the collected data information to the base station in a single-hop or multi-hop manner. The wi...

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Problems solved by technology

[0005] However, using the non-uniform clustering scheme, on the one hand, when calculating the candidate cluster head competition radius, the impact of node density and node energy on the size of the cluster structure is not considered; Candidate cluster heads, energy of no nodes and distance to base station

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