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Wireless Routing Method Based on Congestion Control

A congestion control and routing technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of congestion packet loss, resource waste, packet loss, etc., and achieve the goal of improving the successful delivery rate and balancing the network load distribution Effect

Active Publication Date: 2018-11-30
JIANGNAN UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

Most people rebuild the broken route by detecting the state of the link and using information exchange strategies. This can only solve the problem of packet loss caused by link breaks but cannot solve the problem of packet loss caused by network congestion.
For the problem of network congestion, people mostly reduce network congestion by adjusting the sending rate. Although this method can reduce network congestion, it cannot efficiently utilize the entire network, resulting in waste of resources.

Method used

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  • Wireless Routing Method Based on Congestion Control
  • Wireless Routing Method Based on Congestion Control
  • Wireless Routing Method Based on Congestion Control

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Embodiment Construction

[0024] Below in conjunction with specific embodiment the present invention is described in further detail:

[0025] The invention designs a wireless routing algorithm based on congestion control, which improves the packet loss caused by node congestion in the network. The global routing strategy can be used to reasonably select a route to balance the network load, and the local routing strategy can be used to realize reconstruction of broken routes and congested routes, and improve the successful delivery rate of network packets.

[0026] The global routing strategy defines 3 quantities for the queue of each node, occupancy rate BOR, accumulation rate AR, congestion degree CD and 2 congestion thresholds, and a congestion flag unit CU is set, and the node is periodically detected. The value of the congestion degree CD is used to determine the value of the congestion identification unit CU, and the cost of the path from the source node to the destination node is calculated, and ...

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Abstract

Provided is a wireless routing algorithm based on congestion control. The wireless routing algorithm can be used for detecting and transferring information and is mainly composed of a queue model, a backup routing table, a global routing strategy, and a local routing strategy. The global routing strategy computes link costs according to the queue model and selects a link with the lowest cost according to the link costs. Using a fractured route reestablished by the backup routing table from a source node to a destination node, the local routing strategy diverts the flows in nodes by using the backup routing table when the nodes generates congestion in order to alleviate the congestion of the nodes.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a network routing strategy suitable for information detection and transmission, in particular to a wireless routing algorithm based on congestion control, which can be used for information detection and transmission. Background technique [0002] Mobile ad hoc networks (MANETs) is a mobile ad hoc network. In such a network, the terminal coverage is limited, and two user terminals that cannot communicate directly can use other nodes to forward packets. Due to its particularity, its application occasions mainly include the following categories: military applications, sensor networks, emergency applications, personal communications, etc., and its application in sensor networks is gradually increasing. However, due to the lack of infrastructure, node mobility and unpredictable topology changes, node connections may fail. In addition, when the network traffic is large and the nod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W40/04
CPCH04W28/0289H04W40/04
Inventor 吴锡生浦倩云程建明
Owner JIANGNAN UNIV
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