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Directional greedy geographical routing method for intelligent antenna

A geographical routing and smart antenna technology, applied in the field of communication, can solve the problems that the GPSR protocol cannot be applied, and achieve the effects of meeting real-time and reliability requirements, large throughput, and low control overhead

Pending Publication Date: 2022-07-22
AIR FORCE UNIV PLA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of directional greedy geographical routing method (DirectionalGreedy Perimeter Stateless Routing, DGPSR) facing smart antenna, solve the problem that traditional GPSR agreement can't be applied in the MANET constructed by smart antenna

Method used

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  • Directional greedy geographical routing method for intelligent antenna
  • Directional greedy geographical routing method for intelligent antenna
  • Directional greedy geographical routing method for intelligent antenna

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Embodiment

[0068] First, the nodes in the network judge whether the node is in an idle state or a working state according to whether there is a packet from the upper layer. If it is in the idle state, the main task of the node is to periodically send Hello messages, receive Hello messages from neighbor nodes, and update and maintain the neighbor node table. If the node needs to send a packet, it enters the working state. First, according to the geographic location information of the destination node, according to the directional greedy forwarding mechanism, it is judged whether there is a qualified next-hop node. If there is, according to the location information of the node in the neighbor node table, point the antenna beam to the next hop node, and send packets directionally; if not, perform network planarization processing, and then select the next hop node according to the directional hole processing mechanism. Point the antenna beam to the next hop node, and send packets in a direct...

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Abstract

The invention discloses a directional greedy geographical routing method for an intelligent antenna. Wherein the omni-directional Hello strategy is the basis of the protocol, all nodes in the network periodically send omni-directional Hello messages to enable neighbor nodes to obtain real-time position information of the nodes, and therefore a neighbor node table is constructed and maintained. And the neighbor node table is the basis of a directional greedy forwarding mechanism and a directional hole processing mechanism. When nodes have a packet sending requirement, a next hop node is selected by adopting a directional greedy forwarding mechanism according to a homing algorithm and related information in a neighbor node table. And if a routing hole is encountered, network planarization needs to be carried out, and a next hop node is selected according to a directional hole processing mechanism. The directional greedy routing method for the intelligent antenna can adapt to the application of the intelligent antenna in the MANET, the performance advantages of the intelligent antenna are effectively played, and the requirements for real-time performance and reliability of information transmission are met.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a directional greedy geographic routing method for smart antennas. Background technique [0002] Mobile Ad Hoc Network (MANET) is a distributed dynamic network composed of mobile terminal devices connected through wireless communication links. In recent years, it has been widely used in various fields of military and civilian use. The smart antenna is a type of antenna that transmits adjustable directional narrow beams through antenna technologies such as phased array. It has the advantages of large system capacity, good communication link quality, long communication distance, strong anti-interference ability, low energy consumption, and long system life. Advantages, it has broad application prospects in MANET. [0003] Routing protocol is a key technology of MANET, which mainly solves the problem of information transmission path selection in the network, and is an importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W40/20
CPCH04W40/02H04W40/20
Inventor 郑博朱蒙卓琨张衡阳王素珍
Owner AIR FORCE UNIV PLA
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