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A method and device for determining a data transmission path in a wireless sensor network

A wireless sensor and data transmission technology, applied in network topology, wireless communication, advanced technology, etc., can solve the problems of high algorithm complexity and inability to maximize the life cycle of wireless sensor networks.

Active Publication Date: 2017-11-21
CHINA MOBILE GRP HENAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The difference between the two is that the PLC cooperative routing algorithm saves energy more than the CAN cooperative routing algorithm, but the complexity of the algorithm is much higher
Therefore, the data transmission path determined by the cooperative routing algorithm proposed in the prior art cannot maximize the lifetime of the entire wireless sensor network

Method used

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  • A method and device for determining a data transmission path in a wireless sensor network
  • A method and device for determining a data transmission path in a wireless sensor network
  • A method and device for determining a data transmission path in a wireless sensor network

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Embodiment 1

[0025] Embodiment 1 of the present invention proposes a method for determining the data transmission path in a wireless sensor network. In the technical solution proposed here in Embodiment 1 of the present invention, factors such as the initial energy of the node, the remaining energy, and the energy cost of cooperative transmission are first weighed and considered. A weighted cooperative transmission power allocation method is proposed, that is, a weighted power allocation value is proposed, that is, the weighted power allocation value is the ratio between the initial energy of the source node and the remaining energy, and then on the basis of the obtained weighted power allocation value , a Cooperative Routing Algorithm for Maximizing Network Lifetime (MNLCR, Cooperative Routing Algorithm for Maximizing Network Lifetime) is proposed to determine the data transmission path in the wireless sensor network. Such as figure 2 As shown, it mainly includes the following four steps...

Embodiment 2

[0112] Embodiment 2 of the present invention A device for determining a data transmission path in a wireless sensor network is proposed here, such as Figure 8 shown, including:

[0113] The weighted power allocation value determining module 801 is configured to determine a weighted power allocation value corresponding to a source node of data transmission included in the wireless sensor network.

[0114] Specifically, the above-mentioned weighted power distribution value determination module 801 is specifically used to determine the initial energy value and the remaining energy value of the source node of the data transmission contained in the wireless sensor network; according to the initial energy value and the remaining energy value, determine the source node The corresponding weighted power allocation value.

[0115] Specifically, the above-mentioned weighted power allocation value determination module 801 is specifically configured to follow the formula determining a ...

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Abstract

The invention discloses a method for determining a data transmission path in a wireless sensor network and a device thereof. The data transmission path can be determined according to power distribution, thereby balancing energy consumption of cooperative nodes, and furthermore prolonging life cycle of a network. The method comprises the steps of: S1, determining a weighted power distribution value which corresponds with a source node that is contained in a WSN for data transmission; S2: determining a first transmission cost when data are transmitted from the source node to a sub-node according to the weighted power distribution value for a random sub-node except for the source node in the WSN; S3: in all sub-nodes, selecting the sub-node with least first transmission cost into a source node set; and S4: performing relaxing operation on the sub-node which is newly added into the source node set and total sub-nodes that are not added into the source node set, and using the sub-node which is newly added into a returning executing source node set as the source node and returning for executing the step S2 until objective nodes for data transmission are all added into the source node set.

Description

technical field [0001] The present invention relates to the technical field of wireless sensor network (WSN, Wireless Sensor Network), in particular to a method and device for determining a data transmission path in a wireless sensor network. Background technique [0002] The multipath fading of wireless channels hinders the increase of channel capacity and the improvement of service quality. Among them, the multiple-input multiple-output (MIMO, Multiple-Input Multiple-Out-put) technology can not only effectively resist fading, but also make full use of air space resources by placing multiple antennas at the receiving end and the transmitting end at the same time, and greatly improve the channel capacity. MIMO technology has become one of the key technologies in the field of wireless communication. However, an ideal MIMO multi-antenna system requires that the distance between adjacent antennas is much greater than the carrier wavelength, and the transmission channels betwee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/08H04W84/18
CPCY02D30/70
Inventor 曾彬张继
Owner CHINA MOBILE GRP HENAN CO LTD
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