A wireless self-organizing network synchronization method

Abstract

The invention relates to a wireless self-organized network synchronization method. The wireless self-organized network synchronization method comprises the following steps: (1), distributing a time sequence number; (2), calculating the reference offset time of the origin of a current reference time system of relative mobile nodes, and sending a polling signal according to the corresponding current reference offset time; (3), analyzing after receiving the polling signal; (4), solving time sequence offset test values and reference time deviation values of all adjacent mobile nodes; (5), obtaining a correction value of the reference time system; (6), multiplying by an adjustment coefficient to obtain an adjustment value of the origin of the reference time system; (7), delaying by one polling period and the adjustment value on the origin of the reference time system in the current period so as to obtain a new origin of the reference time system; and (8), performing the step (2). According to the invention, the technical problem that the self-healing capability of the synchronization method among the various mobile nodes in the current MANET is poor is solved; and, by adopting the method disclosed by the invention, synchronization works of the various mobile nodes in the MANET network can be realized without a central site and a GPS signal.

Description

technical field [0001] The present invention relates to a wireless ad hoc network synchronization method. Background technique [0002] Mobile Ad Hoc Network System MANET (Mobile Ad Hoc Network) is a complex distributed network system, a self-organizing and self-healing network, composed of wireless mobile nodes; wireless mobile nodes can freely and dynamically self-organize into any temporary (Ad Hoc Network) Hoc) network topology, allowing people and devices to seamlessly interconnect in environments without pre-existing communication infrastructure. Each wireless mobile node in MANET has enough intelligence to continuously listen and find other neighboring nodes, dynamically determine the best transmission path for data packets and forward the packets hop-by-hop to any other node in the network; it can automatically heal Any damage to the network structure due to network node movement, changes in RF propagation conditions, node failure, and node destruction. [0003] Ea...

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Problems solved by technology

[0009] In order to solve the technical problem of self-organization and poor self-healing ability in the existing synchronization methods between mobile nodes in the MANET, the present invention provides a wireless self-organization network synchronization method. The provided method is a method that does not rely on The synchronization method of nodes in the MANET of the GPS and the central site, the decentralized MANET network does not rely on special nodes, has better self-organization and self-healing capabilities, and there is no change in the RF transmission conditions, failure, or destruction of the central node The problem that the entire network is paralyzed

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