Reliable Data Aggregation Method for Wireless Sensor Networks Based on Continuous Collection Single Pass Model

Abstract

The invention discloses a wireless sensor network data reliable aggregation method based on a continuous-collecting single-transmitting model. The method comprises data transmission mechanism connection establishing, data transmission congestion control and data transmission selective retransmission. When establishment of the data transmission mechanism connection is started, sensor nodes put forward data transmission requirements to data aggregation nodes, data transmission control information is transmitted incidentally in a link establishment process, and data source node control information cost is reduced. After connection establishment is completed, the method turns into a data transmission phase. The sensor nodes and the data aggregation nodes respectively carry out network congestion control through NACK, and the loss of a large amount of transmission data caused by network congestion is avoided. When data losing or transmission errors occur in a data transmission process, the sensor nodes carry out selective and preferential retransmission of the data, and reliable and efficient transmission of the data is guaranteed under the condition of not increasing network loads.

Description

technical field [0001] The invention belongs to the data transmission communication technology, and in particular relates to a reliable aggregation method of wireless sensor network data based on a continuous sampling single transmission model. Background technique [0002] The wireless sensor network is composed of a large number of cheap micro sensor nodes deployed in the monitoring area, and forms a multi-hop self-organizing network system through wireless communication. Due to the limited resources of sensor nodes such as energy, storage, computing and communication bandwidth, the function of a single node is relatively weak. In the node design process, in order to prolong the life cycle of the entire network, energy consumption becomes the primary consideration. [0003] The current mainstream wireless sensor network data transmission protocols include RMST (ReliableMulti-SegmentTransport, reliable multi-segmentation data transmission protocol), ESRT (Event-to-SinkReli...

AI Technical Summary

Problems solved by technology

Traditional wireless sensor network data transmission protocols are relatively complex, or limited to certain specific application environments, and some data transmission protocols do not have functions such as congestion control and reliable data transmission guarantee

It is not fully applicable to the wireless sensor network data transmission with low real-time requirements and high reliability requirements for the continuous sampling single-pass model.

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