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Speed self-adaption method based on wireless Mesh network

A rate-adaptive and rate technology, applied in the field of wireless networks, can solve problems such as poor rate adaptability of a single channel, achieve high availability and reliability, low network resource consumption, and reduce the impact of throughput.

Inactive Publication Date: 2012-09-19
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a rate adaptive method based on wireless Mesh network, to solve the problem of poor adaptability of single channel rate in complex wireless Mesh network topology environment

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  • Speed self-adaption method based on wireless Mesh network
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  • Speed self-adaption method based on wireless Mesh network

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Embodiment Construction

[0025] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0026] This embodiment takes a five-story exhibition hall as an example, as figure 1As shown, each floor is divided into east and west exhibition halls, one node is placed in each exhibition hall on the first and fifth floors: 'East 1a', 'West 1a', 'East 5a', 'West 5a', and the third floor is East The exhibition hall has a large space, so two nodes 'East 3a' and 'East 3b' are placed, and 'West 3a' is placed on the second and fourth floors of the west exhibition hall on the third floor. Since there is a load-bearing wall structure in the middle of the exhibition hall, ...

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Abstract

The invention relates to a speed self-adaption method based on wireless Mesh network in the technical field of wireless network, which comprises the steps of externally broadcasting a probe packet to each wireless Mesh network node and simultaneously receiving the probe packets transmitted by the neighboring nodes thereof, timely maintaining a preferential speed list according to the successful rate of transmitting the probe packet, building a new dynamic probe array according to the preferential speed list and the local nodes, selectively transmitting all the probes which are provided with the speeds listed in the preferential speed list and the probes with approximate speeds, and realizing the self-adaption of speed selection according to the judgment on the successful rate of transmitting the probe. The speed self-adaption method based on wireless Mesh network in the technical field of wireless network can better adapt to the change of network state, can reduce the effect of routingbroadcast and convergence on the throughput to the largest extent, simultaneously considers the change of network topology and is very suitable to be used under the situations with complex space electromagnetic waves.

Description

technical field [0001] The invention relates to a method in the technical field of wireless networks, in particular to a rate adaptive method based on a wireless Mesh network. Background technique [0002] Wireless Mesh network (wireless mesh network), also known as "multi-hop" network, is a new type of wireless network technology completely different from traditional wireless networks. In a traditional wireless local area network (WLAN), each client accesses the network through a wireless link connected to an AP (access point). If users want to communicate with each other, they must first visit a fixed AP. This network structure is called a single-hop network. In a wireless Mesh network, any wireless device node can act as an AP and a router at the same time, each node in the network can send and receive signals, and each node can communicate directly with one or more peer nodes. [0003] The core of the adaptive rate selection method is to obtain time-varying channel inf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W84/18
Inventor 易平张帅吴越李建华
Owner SHANGHAI JIAOTONG UNIV
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