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A low-overhead optimization method for zigbee sensor network tree routing

A sensor network and routing technology, applied in advanced technologies, electrical components, sustainable buildings, etc., can solve problems such as high overhead, missing optimal routes, and unsatisfactory performance, and achieves promotion of transmission delay and balanced node performance. consumption, prolonging the time to live and the effect of network life

Active Publication Date: 2011-11-30
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0034] The technical problem to be solved by the present invention is that the performance is not ideal when optimizing the routing of the ZigBee sensor network tree in the prior art, the cost of flooding to find the optimal route is relatively large, and the optimal route may be missed. Low-overhead optimization method for controlled flooding tree routing in ZigBee sensor networks

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  • A low-overhead optimization method for zigbee sensor network tree routing
  • A low-overhead optimization method for zigbee sensor network tree routing
  • A low-overhead optimization method for zigbee sensor network tree routing

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Embodiment Construction

[0043] The present invention aims at the problems in the ZigBee sensor network tree routing optimization field described above, and proposes a ZigBee sensor network tree routing low-overhead optimization method based on controlled flooding, in which the flooding of the path-finding group is limited New mechanisms for hop count and forwarding nodes, allowing intermediate nodes to reply to pathfinding packets, and comprehensively considering hop count and node remaining energy for path optimization in multi-path situations, reduce flooding overhead as much as possible, and reduce the time to establish the optimal route Delay, choose the path with the least number of hops and the largest remaining energy value of the nodes in the path, balance the energy consumption of nodes, and prolong the survival time of nodes and network life.

[0044] attached Figure 4 Shown is a composition block diagram of the ZigBee sensor network tree routing low-overhead optimization method based on c...

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Abstract

The invention discloses a ZigBee sensor network tree route low-expense optimization method. The method comprises four stages of route finding packet sending, route finding packet processing, reply packet sending and reply packet processing. The flooding operation in the ZigBee sensor network tree route optimization process is limited in the aspects of transmitting nodes and hop count range of the route finding packet, so that flooding expense is obviously reduced. Meanwhile, intermediate nodes are allowed to reply the route finding packet, the flooding expense can be further lowered, and the route finding time delay of the optimal route can be reduced. Moreover, the energy optimal route can be selected in the condition of multiple routes by designing a new route length measurement mechanism, namely synthesized hop count, for simultaneously reflecting the hop count and node residual energy, node energy consumption is balanced, and the node survival time and network service life are prolonged.

Description

technical field [0001] The present invention relates to the technical field of wireless sensor networks, in particular to a wireless sensor network that adopts the distributed address assignment mechanism DAAM (Distributed Address Assignment Mechanism) and tree routing mechanism defined by the ZigBee standard, and assigns an independent identifier to each node in the network. Background technique [0002] A wireless sensor network is a self-organizing, task-oriented, data-centric wireless network composed of multiple sensor nodes with wireless communication functions distributed in a certain area. As a new type of information acquisition and transmission system, wireless sensor networks have advantages over traditional networks in terms of distributed deployment and self-organizing operation, so they have broad application prospects. For the future Internet of Things and Ubiquitous Networks (Ubiquitous Networks) Its realization and development are of great significance. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/24
CPCY02B60/50Y02D30/70
Inventor 任智樊海彬李玉兰陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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