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An implementation method of an improved olsr routing protocol based on rssi

A routing protocol and implementation method technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as poor signal quality, achieve the effect of ensuring business service quality and improving computing efficiency

Active Publication Date: 2021-06-22
DATANG TERMINAL TECH
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Problems solved by technology

[0004] For this reason, the purpose of the present invention is to propose an implementation method of an improved OLSR routing protocol based on RSSI, which can well solve the scenario where the edge node has the shortest path but the signal quality is poor, and better meet the business needs of the actual scenario

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  • An implementation method of an improved olsr routing protocol based on rssi
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  • An implementation method of an improved olsr routing protocol based on rssi

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[0037]Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] The original implementation of the OLSR routing protocol is based on the periodic broadcast of HELLO messages and TC messages. The node locally maintains multiple entries, neighbor tables, two-hop neighbor tables, topology tables, etc. When triggering the calculation of routing conditions, according to each entry, Calculate the routing table according to the protocol, such as figure 1 Shown is the flow diagram of the original OLSR routing calculation protocol,

[0039] The implementation of the original OLSR routing protoc...

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Abstract

The present invention proposes an implementation method of an improved OLSR routing protocol based on RSSI, and expands the RSSI value field in the one-hop neighbor table and the two-hop neighbor table entry, and the one-hop neighbor table is used to record the RSSI value between the node and the neighbor node , the two-hop neighbor table is used to record the RSSI value between the neighbor node and other neighbor nodes of the neighbor node; when the RSSI value of the current node and its neighbor nodes is lower than the minimum threshold value, it indicates that the current node and its neighbor nodes The signal is very weak. The present invention finds whether there are other neighbor nodes that can reach the neighbor node and the RSSI value meets a certain threshold. At this time, the neighbor node with the best RSSI value of the current node is selected as the next-hop path to the target neighbor. Each node is carried out according to this rule, and the calculated route is the optimal shortest path, so the present invention can well solve the scene where the edge node has the shortest path but the signal quality is poor, and better meet the business needs of the actual scene.

Description

technical field [0001] The invention relates to the technical field of mobile ad hoc networks, in particular to an implementation method of an RSSI-based improved OLSR routing protocol. Background technique [0002] Due to its self-organization and self-healing characteristics, MANET network is widely used in military communication and post-disaster emergency communication. Many routing algorithms and protocols have been proposed for MANET network, including on-demand routing protocol, active routing protocol and hybrid routing protocol. agreement etc. However, in the case of dynamic network topology changes caused by factors such as movement, interference, and complex terrain, how to adaptively select and use routes to ensure end-to-end service flow requirements has always been a hot research issue. Periodically exchange HELLO messages and TC messages to obtain link state information. The OLSR routing protocol uses the shortest path to calculate the routing table. However,...

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Application Information

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IPC IPC(8): H04L12/721H04L12/761H04W40/30H04L45/16
CPCH04L45/16H04L45/123H04W40/30
Inventor 边艳春于宏钊张俊安
Owner DATANG TERMINAL TECH
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