A Backoff Design Method for Data Link Random Access Protocol

Abstract

The invention discloses a method for designing a backoff mode for a data link random access protocol. The method includes a channel load statistics module, a channel state judgment module, a binary backoff algorithm module, and a priority-based backoff algorithm module; wherein, the channel load statistics module is used to calculate the channel load by counting the number of data link pulse signals in the channel value, the channel state judgment module is used to judge the current data link channel state, the binary backoff algorithm module is used to perform binary backoff algorithm for backoff, and the priority-based backoff algorithm module is used to perform priority-based backoff Algorithm for backoff. The technical scheme disclosed by the invention improves the performance of the data link network when the channel is congested, and ensures the real-time performance of sending high-priority data link information.

Description

technical field [0001] The present 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 obtaining information advantages 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 operational coordination more precise and flexible, the deployment of troops is more reasonable and fast, the effectiveness of weapons and equipment is fully exerted, and the confrontation ability of the system is enhanced. The quality of a network protocol design determines the pros and cons of performance indicators such as the probability of successful data transmission, throughput, average transmission delay, fairness, and stability. [0003] The fixed access protocol ...

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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