Route searching method for mobile sensor network

A mobile sensor and path search technology, applied in network topology, network data management, electrical components, etc., can solve the problems of large changes in the topology of sensor network nodes, not very suitable for mobile wireless sensor networks, and the inability to establish path search at any time. Achieve low packet loss rate, low energy consumption, and reduce the number of hops

Inactive Publication Date: 2012-11-28
SHANGHAI JIAOTONG UNIV +1
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  • Abstract
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  • Claims
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Problems solved by technology

However, the topological structure changes between mobile sensor network nodes are very large, and a fixed tree structure cannot be used.
Moreover, in order to save node energy, the wireless sensor network needs to be dormant periodically, so that it is impossible to establish a path search at any time.
The above problems lead to the above path search method is not very suitable for the situation of mobile wireless sensor network

Method used

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  • Route searching method for mobile sensor network
  • Route searching method for mobile sensor network
  • Route searching method for mobile sensor network

Examples

Experimental program
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Embodiment

[0030] The environmental parameters of the mobile wireless sensor network in this embodiment are as follows: the transmission radius is 20 meters, the working cycle interval is 2.0 seconds, the number of nodes is 20, the path broadcast packet size is 50 bytes, the data packet size is 100 bytes, and the transmission power is 35.28 milliwatts, the received power is 31.32 milliwatts, the transmission rate is 250 kbits per second, and the scene size is 60 meters by 60 meters.

[0031] This embodiment includes the following specific steps:

[0032] In the first step, in the mobile wireless sensor network with only one receiving node, each wireless sensor node is numbered, among which: the number of the receiving node is 0, and the numbers of other nodes are 1, 2, ..., 19 in turn.

[0033] In the second step, each wireless sensor node periodically broadcasts path information to the neighbor nodes of this node in the network, and at the same time listens to other node broadcasts with...

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Abstract

The invention discloses a route searching method for a mobile sensor network in the technical field of wireless communication. The method comprises the following steps of: numbering each wireless sensor node; broadcasting route information of the node, monitoring the route information of the other nodes at the same time and adding the received route information into a route candidate list of the node; estimating the next-hop node, obtaining the next-hop node of the node and forwarding the data to be sent to the next-hop node, wherein when the data is not received during a time period delta t,the node is in a sleeping state; and starting a new working period after the working period interval delta t from the working period until the application is finished. Aiming at a mobile wireless self-organization sensor network with only one receiving node, a small scale and frequent node position change, a distribution route maintaining method is adopted, so the complexity of a route searching process is reduced and the response speed to the route change is increased.

Description

technical field [0001] The invention relates to a method in the technical field of wireless communication, in particular to a path search method for a mobile sensor network. Background technique [0002] With the rapid development of wireless sensor network technology, wireless sensor network has begun to enter all aspects of people's production and life. Because they have the advantages of small size, light weight, power saving and energy saving, etc., they bring great convenience to people. [0003] But also due to the particularity of wireless sensor network, it also has many problems to be overcome. Small size and light weight mean that each node of the wireless sensor network cannot have powerful computing power and huge memory, so it puts forward higher requirements for the network organization method of the wireless sensor network, and the core of the network organization is the path search method . With the development of the network, various path search methods h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/26H04W40/02H04W84/18
Inventor 骆喆王新兵李成田军吕超
Owner SHANGHAI JIAOTONG UNIV
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