Fishing Ad hoc network routing control method and system based on intelligent antenna

Abstract

The invention belongs to the technical field of maritime communication, and discloses a fishing Ad hoc network routing control method and system based on an intelligent antenna, and the fishing Ad hoc network routing control method comprises the steps of neighbor node discovery, regional one-hop neighbor node number calculation, communication radius adjustment and service and routing data processing. According to the invention, the advantages of space division multiplexing, high interference resistance, high gain and the like of the intelligent antenna are applied to maritime communication, so that various indexes such as capacity and the like of a maritime communication system are further improved; in combination with the NRSA protocol of the intelligent antenna and the node density, the communication radiuses in different directions are dynamically adjusted according to the number of one-hop neighbor nodes in different directions under the fishing communication situation that the sparse distribution of the node density is different, and the network capacity is improved. Meanwhile, the problems of node density difference and frequent communication interference of an omnidirectional antenna are fully considered, and the overall performance of the network is further improved by combining some characteristics of existing routing on the basis of the advantages of the intelligent antenna.

Description

technical field [0001] The invention belongs to the technical field of maritime communication, and in particular relates to a method and a system for routing control of a fishing Ad hoc network based on a smart antenna. Background technique [0002] At present, my country is located in the east of the Asian continent and faces the Pacific Ocean. There are four major sea areas: the Bohai Sea, the Yellow Sea, the East China Sea and the South China Sea. Since ancient times, my country's coastal areas have mostly been engaged in marine aquaculture and marine fishing. There are four major fishing grounds, and it is a major producer and trader of aquatic products. However, when fishermen are fishing offshore, the environment at sea is complex and changeable, resulting in a harsh working environment and even the risk of accidents. Therefore, ensuring the safety of marine operations, and even meeting some recreational needs of fishermen in marine fishing operations, is a problem th...

AI Technical Summary

Problems solved by technology

[0010] (1) Existing maritime communication systems usually use omnidirectional antennas for communication, resulting in a reduction in network capacity; at the same time, existing maritime Ad Hoc communication systems have the disadvantage of relying on omnidirectional antennas

[0011] (2) The existing technology is based on omnidirectional antennas, which leads to the reduction of the number of nodes that can send data at the same time due to the impact of contention backoff

[0012] (3) The existing technology does not consider the characteristics of different node densities in various places in the special scene of fishing boat communication at sea, which leads to a decline in network communication performance in some areas where ships are sparse, and even leads to isolated networks in severe cases or orphan node

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