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Wireless Ad Hoc Network Hybrid Routing Protocol Method Based on Network Environment

A wireless self-organizing network and network environment technology, applied in wireless communication, network topology, electrical components, etc., can solve problems such as unstable communication links, time-varying capacity, limited bandwidth, etc., to reduce broadcast overhead and reduce loss The probability of packets and the effect of reducing routing control overhead

Active Publication Date: 2022-07-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with traditional wireless networks, the network structure of wireless ad hoc networks also has corresponding shortcomings, mainly in several aspects: unstable communication links, limited bandwidth, time-varying capacity, limited energy, etc.

Method used

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  • Wireless Ad Hoc Network Hybrid Routing Protocol Method Based on Network Environment
  • Wireless Ad Hoc Network Hybrid Routing Protocol Method Based on Network Environment
  • Wireless Ad Hoc Network Hybrid Routing Protocol Method Based on Network Environment

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Embodiment Construction

[0036] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below with reference to the accompanying drawings.

[0037] The present invention mainly includes 6 processes of link (one-hop neighbor) detection, two-hop neighbor detection, self-adaptive adjustment of Hello message period, improved MPR selection algorithm, on-demand route discovery and routing decision, and each process is specifically described as follows:

[0038] 1. Link (one-hop neighbor) detection

[0039] The settings of each component field of the Hello message are: set the load field to the load of the node (MAC send queue length / total length, the value is [0, 100]); set the availability field to the availability of the node (remaining power , the value is [0, 100]); set the Hello message sending period field as the parameter T of this node Hello (adaptive change) value; followed by link ...

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Abstract

The invention discloses a wireless ad hoc network hybrid routing protocol method based on a network environment, which is applied to the technical field of wireless ad hoc networks and aims at the problems of unstable communication links, limited bandwidth and time-varying capacity in existing wireless ad hoc networks. , energy constraints and other problems; the present invention adopts a table-driven and on-demand-driven mixed routing mode, the topology is maintained by periodically exchanging Hello information within the two-hop range, and multiple routes are established by on-demand route discovery outside the two-hop range; based on local topology The degree of variation and the quality of the direct link adaptively adjust the Hello message sending period; evaluate the link quality based on the packet reception rate, and use the link quality as the basic metric for routing; based on the link quality, next-hop load, and next-hop availability Make routing decisions; adopt MPR selection algorithm based on link quality and node degree; increase forward learning and reverse learning in the process of on-demand route discovery, and establish redundant routes.

Description

technical field [0001] The invention belongs to the technical field of wireless ad hoc networks, in particular to a wireless ad hoc network hybrid routing protocol technology. Background technique [0002] Data is exchanged between nodes of an ad hoc network through a multi-hop data forwarding mechanism, and a routing protocol is required to make packet forwarding decisions. The irregularity of wireless channel changes, and the movement, joining, and exiting of nodes will also cause dynamic changes in the network topology. The role of routing protocols is to monitor changes in network topology, exchange routing information, locate destination nodes, generate, maintain and select routes, and forward data according to the selected routes to provide network connectivity in this environment. It is the basis for mobile nodes to communicate with each other, so it has become a research hotspot in the current ad hoc network architecture. Compared with traditional wireless networks...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W40/12H04W84/18
CPCH04W40/02H04W40/12H04W84/18
Inventor 刘强赵江东韦云凯冷甦鹏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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