Different-group discovery and combination method for TDMA wireless ad hoc network

Abstract

The invention relates to a TDMA wireless ad hoc network different-group discovery and combination method. The method comprises the following steps: S1, each node of a main path circularly performs receiving work according to a superframe structure; s2, transmitting a beacon signaling; s3, transmitting an auxiliary beacon; s4, receiving a beacon signaling and an auxiliary beacon; s5, judging whether the received beacon signaling and the auxiliary beacon are different-group beacons or not, if yes, dismissing the ad hoc network with small network depth, performing networking again, and returning to the step S1; and if not, returning to the step S1. The method has the advantages that one beacon signaling or one auxiliary beacon can be transmitted at an average interval of one time slot, and meanwhile, any node is ensured to continuously receive the beacons at more than three time slots in an unpredetermined beacon transmitting multiframe time, so that the beacons which possibly appear at an interval of one time slot can be received at the continuous three time slot time; beacons can be found in time, and the purpose of fast integration of the ad hoc network is achieved.

Description

technical field [0001] The invention relates to the field of wireless ad hoc networks, in particular to a method for discovering and merging different groups in a TDMA wireless ad hoc network. Background technique [0002] DMR / PDT is a widely used digital professional wireless communication system standard. Common DMR / PDT communication methods include conventional direct communication, conventional forwarding, and trunking communication. The former conventional straight-through method only requires mobile station equipment, such as walkie-talkie and / or car station, to directly perform service transmission, such as conversation, between two or more mobile stations. Due to the straight-line propagation characteristics of wireless high-frequency radio frequency, the coverage of this method is extremely limited. The latter two methods need to establish a base station, and the service can be forwarded through the base station to expand the communication coverage. In order to e...

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Problems solved by technology

[0005] The present invention mainly solves the problem that two different ad hoc networks in the same area cannot detect a complete synchronization word, and cannot find and merge each other, and provides a method of transmitting and receiving time slots by adjusting beacon signaling and auxiliary beacons , to ensure that any node can receive complete beacon signaling TDMA wireless ad hoc network heterogeneous group discovery and merging method

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