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Multi-channel routing method based on minimum channel switching in self-organizing network

A self-organizing network and channel switching technology, applied in the field of multi-channel users to find routes, can solve the problem of frequent channel switching delays that are not fully considered, and achieve the effects of improving throughput, reducing network delay, and reducing delay.

Inactive Publication Date: 2010-03-17
NANJING UNIV OF POSTS & TELECOMM
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  • Application Information

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Problems solved by technology

[0007] However, the above-mentioned routing improvement algorithms have not fully considered the delay problem caused by frequent channel switching.

Method used

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  • Multi-channel routing method based on minimum channel switching in self-organizing network
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  • Multi-channel routing method based on minimum channel switching in self-organizing network

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Embodiment Construction

[0019] DSDV (Destination-Sequenced Distance-Vector) is a table-driven routing algorithm. Each node maintains a routing table, which records all possible destination nodes and required hops in the network. number. Each table entry has a serial number assigned by the destination node, which is used to distinguish new routes from old routes. Each node must periodically exchange routing information with neighboring nodes. Of course, routing updates can also be triggered according to changes in the routing table.

[0020]DSDV can only provide a single-hop path between a given source node and destination node, and the protocol needs to select the following parameters: the period of regular update, the maximum "settling time" (settling time) and the interval time between route failures. Although the impact of these parameters on the network is difficult to measure, because its nature is a trade-off between the effectiveness of routing and network communication overhead, the selection...

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Abstract

The invention relates to a multi-channel routing method based on minimum channel switching in a self-organizing network. The method demands that an originating node passes through self-maintained routing and channel use information, during routing updating and maintaining, each node in a network also needs to maintain the information of available-channels around the node and the available channelinformation of each leap in routing to a destination node beside necessary routing information, and a periodic global routing updating method and an event trigger local routing updating method are adopted; when connection is established, the originating node selects the best routing to the destination node according to the available channel gather of each leap in a routing list and finishes the distribution of channels by dint of RTS / CTS of a media access control layer, wherein the best routing means the routing needing least switching time delay. The invention aims to try best to reduce channel switching in routing and reduces time delay generated in channel switching as far as possible, thereby reducing the network time delay and enhancing the throughput.

Description

technical field [0001] The invention relates to an implementation scheme for multi-channel users looking for routes based on least channel switching in an ad hoc network, and belongs to the technical field of communication. Background technique [0002] Ad Hoc network is a special wireless mobile communication network, which is composed of wireless mobile nodes, and its network topology is arbitrary and temporary. The main features of the self-organizing network are: independent networking, no need to rely on any pre-assumed network facilities, network nodes can quickly and automatically form an independent network; no central self-organization, all nodes have equal status, no accidents of any node The situation will not affect the existence and operation of the entire network, and each node adjusts its behavior according to the agreed criteria; multi-hop routing, when a node needs to communicate with a node outside the coverage area, it needs to be completed through the tra...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W40/24H04W84/18
Inventor 朱琦谢晋
Owner NANJING UNIV OF POSTS & TELECOMM
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