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MPR set selection method based on isolation degree and non-mpr nodes

A node and isolation technology, applied in the field of MPR set selection based on isolation and non-MPR nodes, can solve the problem that nodes do not necessarily have global optimality, and achieve the effect of improving total throughput and delivery success rate

Active Publication Date: 2022-06-10
SOUTHEAST UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the NFA algorithm has the above advantages, when two candidate nodes have the same opportunity to join the MPR set of the master node, a node will be randomly selected to join. In this case, the selected node does not necessarily have global optimality

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  • MPR set selection method based on isolation degree and non-mpr nodes
  • MPR set selection method based on isolation degree and non-mpr nodes
  • MPR set selection method based on isolation degree and non-mpr nodes

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0033] The present invention provides an MPR set selection method based on isolation degree and non-MPR nodes, which ensures that the selected MPR node must be a global optimal solution each time, thereby reducing the generation of TC messages in the entire network and reducing WMN link conflicts.

[0034] As a specific embodiment of the present invention, for an MPR set selection method based on isolation degree and non-MPR nodes, the overall process description is attached. figure 1 shown, including the following steps:

[0035] Step 1: Detect the one-hop neighbor set N(u) and the two-hop neighbor set N2(u) of the master node, and calculate the number of connections of each node in N(u).

[0036] Detect the relationship between N(u) and N2(u) nodes, if a node in N(u) is the only node connecting a node in N2(u), add this node to the...

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Abstract

The invention proposes an MPR set selection method based on isolation degree and non-MPR nodes, and belongs to the field of wireless Mesh network protocols. In view of the MPR selection algorithm in the standard OLSR protocol, the global optimal MPR set cannot be obtained, and at the same time, a large number of TC groups will be generated in an environment where a large number of nodes are connected, resulting in network congestion and load imbalance. The present invention is based on the OLSR protocol In the above, the storage data of neighbor nodes is extended to three-hop neighbor nodes, and a selection algorithm based on isolation degree and non-MPR node is proposed, and the optimal MPR node is determined by comparing the independence degree value of the node or the value of non-MPR nodes, avoiding random selection The situation of the MPR node, and the improvement and optimization of the underlying protocol code have been carried out, and the generation of TC messages in the entire network has never been reduced, thereby improving the total throughput of the network and the packet delivery rate.

Description

technical field [0001] The present invention relates to the field of wireless Mesh network communication, in particular to an MPR set selection method based on isolation degree and non-MPR nodes. Background technique [0002] With the rapid development of the Internet (Internet), Internet of Things (IoT), vehicle network (Vehichlarad-hoc networks, VANETS) and other self-organizing networks, driving the development of various wireless transmission network technologies, people's concern for the network Demands and expectations are also getting higher and higher, not only want to be connected to the Internet anytime, anywhere and stably, but also want to have a variety of network services. The development of various networks such as Wireless Local Area (WLAN), Wireless Broadband ACCHess Network (WBAN) and Worldwide Interoperability for Microwave ACCHess (WiMAX) can meet most of people's needs. However, for major urban social events, large-scale activity support, disaster relie...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/06H04W40/02H04W40/04H04W40/24
CPCH04W40/023H04W40/04H04W40/24H04W24/06
Inventor 裴文江王宇飞夏亦犁
Owner SOUTHEAST UNIV