Ad hoc network routing method and system suitable for narrow band condition

Abstract

The invention provides an ad hoc network routing method and system suitable for a narrow-band condition. The method is based on the problems of overhigh overhead, serious channel conflict and the likeof an existing routing protocol under the half-duplex narrow-band condition studied by the invention. The demand of situation information of each node in the system is required in practical application of the wireless ad hoc network. Through reasonably designing a data packet frame structure, fusing the geographic position information of each node into a topology control message, the situation information of the whole network is effectively updated while neighbor detection is carried out. Data aggregation is carried out during each forwarding. Bandwidth resources are effectively saved. According to the method, the routing overhead is reduced, the problem of channel conflict under a half-duplex mode is solved, the situation awareness of each node of the system is completed in the routing establishment and maintenance process, and the wireless ad hoc network deployment and application under the narrow-band condition are realized.

Description

technical field [0001] The invention relates to the field of ad hoc network routing, in particular to an ad hoc network routing method and system suitable for narrowband conditions. Background technique [0002] Wireless Adhoc Network (Wireless Adhoc Network) is a group of wireless links for communication, dynamically formed by mobile nodes, it is a multi-hop temporary autonomous system. It was first studied by the PRNET project of the US DOD, and it is mainly used in the military field. However, since the wireless ad hoc network does not require pre-existing network infrastructure, such as base stations, it is also widely used in civil fields, such as rescue after earthquakes and floods. With the development of wireless communication technology and mobile terminal technology, the application of Adhoc network in military and civilian fields has been paid more and more attention, and various researches have been carried out continuously. [0003] Different from the single-h...

AI Technical Summary

Problems solved by technology

[0006] 1) The amount of control packet data is large and the overhead is high;

[0007] 2) The existing routing protocols have serious channel competition and conflicts in the half-duplex mode;

[0008] 3) Lack of situational information awareness (such as geographic location information) for nodes in the network, which limits the use of certain scenarios that rely on situational information (such as battlefield environments, emergency search and rescue, etc.)

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