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An Efficient Routing Method for hr-wpan Mesh Network

A network and purpose technology, applied in the field of efficient HR-WPAN Mesh network routing, can solve the problems of reducing control overhead, unicast control message content and forwarding path without considering node energy, shortening the length of relay node list, etc., to achieve reduction The effect of controlling overhead, shortening road construction time, and saving network bandwidth

Active Publication Date: 2015-10-28
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The new routing method uses broadcasting of Link State Registration messages, fusion of Link State Registration messages, shortening the length of the relay node list, self-adaptive routing to publish optimal routing information, and a routing mechanism based on node residual energy to solve the existing routing method based on topology servers Unicast control messages cannot fully publish network topology information, there is some redundancy in the number, content, and forwarding paths of control messages, and node energy is not considered when selecting routes under multi-path conditions; reduce control overhead and shorten path construction Time, balance node energy consumption, save network bandwidth, improve routing method efficiency, delay and other performance and extend network life

Method used

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  • An Efficient Routing Method for hr-wpan Mesh Network
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  • An Efficient Routing Method for hr-wpan Mesh Network

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Embodiment Construction

[0020] In the HR-WPAN Mesh network, the nodes in the mesh tree structure periodically collect the link status information (such as link quality, delay, hop count, etc., the default is the hop count) All MPNC nodes in the network can be selected as topology server nodes. An MPNC node that can be used as a mesh controller MC (Mesh Coordinator) initiates the link state information registration process. Among them, MC can control all MPNC nodes in the mesh network and is also the root node of the mesh tree generated by the mesh network. First, the MC node creates a link request message Link State Request message (you can specify the required link state information type by setting its Cost type item, and set its TTL value to control the link state information saved by each topology server node table size).

[0021] Such as figure 1 Shown is the flow chart of the routing method of the present invention. It mainly includes three operation stages, which are composed of link state i...

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Abstract

The invention discloses an efficient routing method of a high rate-wireless personal area network (HR-WPAN) mesh network and relates to routing technology based on topology servers in the WPAN mesh network. According to the routing method, broadcasting Link State Registration information, converging the Link State Registration information, shortening the length of relay node lists, releasing optimal path information through self-adaptive routing and a routing mechanism based on node dump energy are adopted, and the problems that the unicast control information of an existing routing method of the WPAN Mesh network based on the topology servers can not release network topology information sufficiently, the number, the content and the forwarding path of the control information are redundant, node energy is not considered in a routing process under the multi-path conditions and the like are solved. Control overload is reduced, path constructing time is shortened, node energy consumption is balanced, network bandwidth is saved, the efficiency of the routing method and the performance including time delay and the like are improved, and service life of the network is prolonged.

Description

technical field [0001] The present invention relates to WPAN Mesh network (Wireless Personal Area Networks Mesh) technology, in particular to a high-speed wireless personal area network that adopts a routing technology based on a topology server and assigns an independent identifier to each node in the network. Network HR-WPAN Mesh network (High Rate Wireless Personal Area Networks Mesh). Background technique [0002] WPAN Mesh network refers to a mesh wireless communication network composed of WPAN devices (portable electronic products and communication devices). The WPAN Mesh network has the following advantages: it can expand the coverage of the network without increasing the transmission power or improving the receiving sensitivity; it can increase the reliability of data transmission through redundant routes; it can simplify the configuration of network nodes; and extend the life of nodes. According to different application scenarios, WPAN Mesh networks can be divided ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10H04W40/12H04W40/30
CPCY02B60/50Y02D30/70
Inventor 任智汪坤露陈前斌徐中浩陈红李玉兰
Owner CHONGQING UNIV OF POSTS & TELECOMM
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