Implementation of Opportunistic Routing Protocol for Underwater Acoustic Sensor Networks Based on Cluster Topology

A technology of underwater acoustic sensors and implementation methods, which is applied in the field of routing protocols, can solve problems such as limited bandwidth and node energy, and high control overhead, and achieve the effects of improving network energy utilization, solving hot spots, and overcoming high routing control overhead

Active Publication Date: 2022-07-12
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

Aiming at the characteristics of limited underwater acoustic channel bandwidth and node energy, the present in

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  • Implementation of Opportunistic Routing Protocol for Underwater Acoustic Sensor Networks Based on Cluster Topology
  • Implementation of Opportunistic Routing Protocol for Underwater Acoustic Sensor Networks Based on Cluster Topology
  • Implementation of Opportunistic Routing Protocol for Underwater Acoustic Sensor Networks Based on Cluster Topology

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Embodiment Construction

[0079] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0080] Step 1: Determine the network structure.

[0081] figure 1 It is a three-dimensional underwater underwater acoustic sensor network structure. The three-dimensional underwater underwater acoustic sensor network consists of two kinds of nodes: sink nodes randomly deployed in the two-dimensional plane of the water surface and sensor nodes randomly deployed in the underwater three-dimensional space. The sink nodes are equipped with GPS to obtain their own position; the sensor nodes are equipped with different types The sensors collect water information. All sink nodes and sensor nodes are equipped with the same acoustic modem and use underwater acoustic signals for communication; sensor nodes have the ability to generate and relay data packets, and the data packets are transmitted to any sink node through multiple hops, that is, the transmission i...

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Abstract

The invention provides a method for realizing an opportunistic routing protocol of an underwater acoustic sensor network based on a cluster topology. The opportunistic routing protocol is combined with the cluster topology, and the forwarding node determines the flow direction of the data packet according to the position of the adjacent cluster and the density of the node, so as to improve the data packet flow direction. One-hop transmission success rate and effectively avoid the communication empty area. At the same time, the cluster topology is used to sparse the network, thereby significantly reducing the routing control overhead, overcoming the drawbacks of the traditional stateful opportunistic routing control overhead, and improving the network energy utilization. The intra-cluster node-assisted mechanism is used to establish inter-cluster forwarding. After the master node fails to forward, other nodes in the cluster compete for forwarding, which improves the success rate of inter-cluster forwarding and reduces packet retransmission. The node considers the remaining energy of the node when evaluating its own priority, so the network energy consumption can be distributed to each node, solving the hotspot problem and effectively prolonging the network life.

Description

technical field [0001] The invention relates to the technical field of underwater information, and relates to the two fields of underwater acoustic communication and underwater network, in particular to a routing protocol suitable for an underwater underwater acoustic sensor network. Background technique [0002] Routing protocols are an indispensable part of multi-hop networks. In order to solve the problem of node failure due to rapid energy consumption due to low forwarding rate and high retransmission rate of traditional routing protocols, an opportunistic routing protocol is proposed. Opportunistic routing abandons the traditional method of only selecting a single node as the next hop, fully considers the broadcast characteristics of wireless propagation, selects multiple nodes as the next hop candidate set, and then selects the optimal node as the next hop through coordination within the candidate set. Opportunistic routing is especially suitable for underwater acoust...

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Application Information

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IPC IPC(8): H04W40/04H04W40/20H04W40/10H04L45/02H04L45/00
CPCH04W40/04H04W40/20H04W40/10H04L45/02H04L45/46Y02D30/70
Inventor 赵瑞琴李宁
Owner NORTHWESTERN POLYTECHNICAL UNIV
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