A WSN hierarchical routing protocol implementation method with energy balance
A technology of energy balance and routing protocol, which is applied in the direction of reducing energy consumption, advanced technology, data exchange network, etc., can solve the problems of insufficient consideration of the energy consumption balance of routing protocol and the significant impact of routing protocol network energy consumption, etc., to achieve balance The effect of energy consumption and good energy balance
Active Publication Date: 2020-07-28
ZHEJIANG UNIV OF TECH
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[0004] The above-mentioned link-based routing protocols and hierarchical routing protocols have achieved good results, but there is still a problem that the energy balance of the routing protocols is not fully considered, especially the energy balance within the cluster and the energy balance between cluster heads. two aspects
The pros and cons of routing protocols have a major impact on the energy consumption of the network. It is necessary to ensure the normal communication of the network and extend the network life cycle as much as possible.
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[0046] The technical solution of the present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.
[0047] A method for implementing an energy-conserving balanced WSN hierarchical routing protocol, comprising the steps of:
[0048] Step 1: The Sink node broadcasts a beacon frame b to other nodes in the network, where b=(ID, Er, RSSI, LQI, Hmin). Among them, ID represents the identification of the sending node of the beacon frame, Er represents the remaining energy, RSSI represents the signal strength received by the receiving node, LQI represents the link quality, and Hmin represents the shortest hops between the receiving node and the Sink node; i Construct neighbor information table T i , Initialize Hmin to ∞, n i ∈N / Sink, N represents all nodes existing in the current network. Whenever node n i Receive b, store b to T i , and judge whether the shortest hops away from the Sink node are less than the current Hmin, ...
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A WSN hierarchical routing protocol implementation method with balanced energy consumption, including using the flooding method to establish a neighbor node routing table for each sensor node, using the shortest hops between the node and the Sink node to elect a cluster head node, and constructing the network based on the principle of virtual force For a suitable cluster, perform steps such as multi-hop data transmission to the cluster head node. In the election of the cluster head candidate nodes and the calculation of the competition radius, the present invention uses the shortest hops between the node and the Sink node as the measurement standard to make up for the defect that the closer the distance is, the greater the energy consumption; in the election of the cluster heads, full consideration is given to Factors such as the remaining energy of the cluster head candidate node, the average link quality between the candidate node and the surrounding neighbor nodes, and the number of neighbor nodes; use the shortest hops between the cluster head node and the Sink node, the remaining energy of the cluster head node, and the cluster head node The link quality with the neighbor cluster head node is the influencing factor to design a reasonable cost forwarding function to select the next hop forwarding node.
Description
technical field [0001] The invention relates to a method for realizing WSN layer routing protocol. Background technique [0002] With the rapid development and maturity of technologies such as sensors, wireless communication, chip integration and electronic component manufacturing, the development of low-cost, low-power, and multi-functional Wireless Sensor Networks (WSN) has been promoted. The wireless sensor network is a network composed of a large number of low-power wireless sensor nodes with computing power, perception ability, data processing ability and wireless communication ability deployed in the monitoring area. The purpose is to collect, process and transmit the information of the measured object in the monitoring area in real time. [0003] At present, wireless sensor network routing protocols are mainly divided into link-based routing protocols and hierarchical routing protocols. Among them, link-based routing protocols use a single sensor node as a unit to tr...
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IPC IPC(8): H04W40/02H04W40/04H04W40/10H04L12/733H04L12/721H04L12/715H04L45/122
CPCY02D30/70
Inventor 毛科技汪敏豪华子雯徐瑞吉杨志凯周贤年
Owner ZHEJIANG UNIV OF TECH