Routing metric method for opportunistic routing in wireless mesh network

A wireless mesh network, opportunistic technology, applied in wireless communication, network traffic/resource management, data exchange network, etc., can solve the problem of ignoring the opportunistic routing characteristics of wireless network, so as to reduce the number of data transmission and improve the throughput rate Effect

Inactive Publication Date: 2012-06-27
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The ideas of the above routing measurement methods are all based on traditional routing methods, while ignoring the characteristics of wireless network opportunistic routing itself

Method used

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  • Routing metric method for opportunistic routing in wireless mesh network
  • Routing metric method for opportunistic routing in wireless mesh network
  • Routing metric method for opportunistic routing in wireless mesh network

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Embodiment Construction

[0029] Combine below figure 1 , 2 The embodiments of the present invention are described in detail: this embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are provided, but the protection scope of the present invention is not limited to the following embodiments .

[0030] This embodiment takes a 4-story teaching building as an example, as figure 2 As shown, the nodes are arranged in the rooms. There is one room with nodes on the first floor and the fourth floor, which are Room 105 and Room 410 respectively. There are two rooms with nodes on the second and third floors, which are Room 205 and Room 210 respectively. Room and Room 310 and Room 315.

[0031]At present, a PC in room 105 wants to send data to room 410, the steps are as follows:

[0032] The first step is to load a detection packet queue for each wireless Mesh node, and periodically sen...

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Abstract

The invention provides a routing metric method suitable for opportunistic routing in a wireless mesh network, which is used for calculating minimum transmission times required for transmitting a packet successfully during opportunistic transmission between a source node and a destination node, defining a distance between the nodes according to the routing metric and dividing upstream nodes and downstream nodes. The method takes the broadcasting characteristics of the opportunistic routing into full consideration and allows the nodes, which receive data packets, in a network to take part in the forwarding by making use of the transmission capacity of idle nodes in the network, so the minimum transmission times required for transmitting the packet successfully when the packet is forwarded between the nodes in an opportunistic routing manner are obtained. Compared with the forwarding nodes of the traditional routing metric, the forwarding node which is selected by taking the minimum transmission times as the routing metric is more suitable for the selection of an opportunistic forwarding node set in the opportunistic routing.

Description

technical field [0001] The invention relates to the field of wireless network routing, in particular to routing metrics for opportunistic routing of wireless mesh networks. Background technique [0002] Wireless Mesh Network (WMN) is also called a multi-hop network, and its core guiding idea is to allow each node in the wireless network to send and receive signals. In a wireless mesh network, any wireless device node can act as both an AP (Accessing Point) and a router, and each node can communicate directly with one or more peer nodes. The biggest advantage of this structure is that if the nearest AP is congested due to excessive traffic, the data can be automatically rerouted to an adjacent node with less communication traffic for transmission. By analogy, the data packet can also continue to be routed to the next nearest node for transmission according to the network situation until it reaches the final destination. This access method is multi-hop access. The multi-hop ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/00H04L12/56H04W40/02
Inventor 石柯华鹏付逸斐
Owner HUAZHONG UNIV OF SCI & TECH
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