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Multi-hop ad-hoc-network anti-interference routing method based on link quality factor

A link quality and routing technology, applied in advanced technology, electrical components, climate sustainability, etc., can solve the inability to respond quickly to complex electromagnetic environments and dynamic and variable conditions of network topology, increase the computational complexity of routing algorithms, protocols Complexity and other problems, to achieve the effects of alleviating the pressure of network flooding, strong adaptability to dynamic interference environments, and low control overhead

Active Publication Date: 2016-03-16
THE 36TH INST OF CENT MILITARY COMMISSION EQUIP DEV DEPT
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Problems solved by technology

[0008] Therefore, the existing wireless ad hoc network anti-jamming routing protocol, while improving the topology adaptability and environmental adaptability, often at the cost of increasing the control overhead, or increasing the computational complexity of the routing algorithm, resulting in the protocol is too complex to be fast Respond to complex electromagnetic environment and dynamic and changeable network topology

Method used

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  • Multi-hop ad-hoc-network anti-interference routing method based on link quality factor
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  • Multi-hop ad-hoc-network anti-interference routing method based on link quality factor

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specific Embodiment approach

[0031] figure 1 It is a network layout diagram at a certain time of the embodiment of the emergency communication multi-hop ad hoc network. figure 2 for figure 1 Diagram of the network topology.

[0032] Against figure 1 , 2 As shown in the multi-hop ad hoc network, the multi-hop ad hoc network anti-interference routing method based on the link quality factor of the present invention, such as image 3 As shown, including the following steps:

[0033] (10) Neighbor node discovery: The node sends a test packet, and other nodes respond to the test packet, and establish the neighbor node list and neighbor links of each node;

[0034] Such as Figure 4 As shown, the (10) neighbor node discovery step includes:

[0035] (11) Send a test packet: Node i resets its own timer and counter after powering on, and after node i joins the network and obtains the allocated time slot synchronously, it broadcasts in its main time slot with a fixed power P s And fixed rate r s packet / s, in the preset wind...

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Abstract

The invention discloses a multi-hop ad-hoc-network anti-interference routing method based on a link quality factor. Environment adaptability is high and control cost is less. The method comprises the following steps of (10) neighbor node discovery: a node sends a test pack, other nodes response to the test pack, and a neighbor node list of each node and a neighbor link are established; (20) neighbor link quality prediction: neighbor link forwarding cost is calculated according to a neighbor link stability factor, a symmetry factor and a reliability factor; (30) node routing discovery: a source node sends a routing request, a destination node replies the routing request and the source node discovers the routing according to path forwarding cost from the source node to the destination node.

Description

Technical field [0001] The invention belongs to the technical field of multi-hop wireless network routing, in particular to a multi-hop ad hoc network anti-interference routing method based on a link quality factor with strong environmental adaptability and low control overhead. Background technique [0002] Wireless ad hoc network routing requires adaptation to topology changes caused by node movement or interference, so routing mechanisms generally need to meet the characteristics of self-adaptation and distributed. In the past, research on the anti-interference ability of wireless ad hoc networks focused on anti-interference at the physical layer, using directional antennas, MIMO technology, etc., at the MAC layer, channel allocation and scheduling strategies are used to reduce interference, and at the network layer, routing algorithms based on interference perception are mainly designed , Analyze the impact of interference on network performance and avoid interference areas t...

Claims

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Application Information

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IPC IPC(8): H04W40/12H04W40/14H04W40/16H04W24/08
CPCH04W24/08H04W40/12H04W40/14H04W40/16Y02D30/70
Inventor 楼俐范建华贺荣胡永扬吕遵明成洁
Owner THE 36TH INST OF CENT MILITARY COMMISSION EQUIP DEV DEPT
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