Back-off mode design method for data link random access protocol

Abstract

The invention discloses a back-off mode design method for a data link random access protocol. The method comprises a channel load statistics module, a channel state judgment module, a binary backoff algorithm module and a priority-based backoff algorithm module. The channel load statistics module is used for calculating a channel load value by counting the number of data link pulse signals in a channel, the channel state judgment module is used for judging the current data link channel state, and the binary backoff algorithm module is used for executing a binary backoff algorithm for backoff.The priority-based backoff algorithm module is used for executing a priority-based backoff algorithm to carry out back-off. According to the technical scheme disclosed by the invention, the data linknetwork performance during channel congestion is improved, and the real-time performance of high-priority data link information sending is ensured.

Description

technical field [0001] The invention relates to a backoff mode design method, in particular to a backoff mode design method for a data link random access protocol. Background technique [0002] The data link is an important basis for gaining information superiority on the battlefield, a "link" to realize the seamless connection between the combat forces of various arms, and a multiplier for the effectiveness of combat weapons and equipment. In the current joint operations, the data link makes the coordination of operations more precise and flexible, and the deployment of troops is more reasonable and rapid, giving full play to the effectiveness of weapons and equipment and enhancing the confrontation capability of the system. The quality of a network protocol design determines the success of data transmission probability, throughput, average transmission delay, fairness, stability and other performance indicators. [0003] For fixed access protocols typically represented by...

AI Technical Summary

Problems solved by technology

Furthermore, the BEB algorithm is prone to "starvation effect". The BEB algorithm is conducive to the nodes that have successfully competed to send more easily in a short period of time, causing other nodes to be unable to obtain the right to use the channel for a long time.

Furthermore, the BEB backoff algorithm is not suitable for combat scenarios. In the BEB algorithm, all nodes are treated fairly during transmission, and the priority of node information is not distinguished. Once the low-priority information in the BEB algorithm obtains the right to use the channel, due to " The starvation effect will cause high-priority information or emergency information to be delayed, which will not only aggravate the congestion, but more importantly, delay the fighter plane

Although the MILD back-off algorithm, EIED back-off algorithm, and SD back-off algorithm alleviate the "starvation effect" of the BEB back-off algorithm to a certain extent, their performance is poor when the channel state is congested, and they cannot be incompatible with combat scenarios and cannot guarantee high priority. The real-time nature of level information transmission

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