Method for forming fine convergence gradient in sensor network

Abstract

The invention discloses a method for forming fine gathering gradient in the sensor network, which includes: A. It gathers node broadcasting and sends the clustering gradient broadcasting order packets. B. It receives the node i, analyzes the packet head, gets the sending node address ID, sends the node hop n, and records the sending node address ID and the node hop n in its neighbor list. C. The node i sets or updates their own hops, according to the existing neighbor information and their own hops, calculates gathering gradient, and transmits the broadcasting order packets. D. The node i continue to monitor channel, and repeats executing step B and C, until getting the local stabilization time Ts, stops monitoring, and forms finegathering gradient. The invention solves the problems of gradient without the regularity and the imbalance between the difference of node data transference form and data load.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a method for forming fine aggregation gradients in a sensor network. Background technique [0002] In traditional wireless networks, star network (star), mesh network (mesh), and ad hoc network (ad hoc) are the most common networking forms. The star network is usually a degenerate network form, and the communication nodes are usually reachable by one hop. Mesh networks generally have a relatively fixed network topology, and the mobility of network nodes is not strong. The inter-network communication is completed through routing exchange. The routing is relatively fixed, but the routing table usually increases with the size of the network. The self-organizing network is a highly mobile wireless network networking mode. The random movement of network nodes makes the network connection relationship change frequently, so the validity period of each route is directly...

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Problems solved by technology

[0024] In view of this, the main purpose of the present invention is to provide a method for forming a fine convergence gradient in a sensor network to solve the irregularity of the gradient band in the traditional hop gradient and the equal hop gradient caused by wireless channel instability With the difference of internal node data forwarding form and the unbalanced data load, it can improve the network throughput and prolong the network lifetime

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