A multi-priority multi-channel MAC protocol adaptive jitter method and system

Abstract

A multi-priority multi-channel MAC protocol self-adaptive jittering method of the present invention comprises the following steps: 1: sending the service packet data arriving at the network layer into the buffer queue of the corresponding channel according to the priority level for queuing; 2: queuing from the buffer queue Take out the packet data and split it into N burst data packets; 3: Before sending each burst data packet, determine the jitter window according to the priority level of the burst data packet, the jitter stage, and the transition probability p of the jitter stage 4: The burst data packet randomly selects a jitter time according to the determined jitter window size to complete the jitter process, and randomly selects a channel frequency point in the channel set to send; 5: Counts the number of burst data packets on each channel within a period of time Quantity, which quantifies the network load, and serves as the basis for setting the transition probability p in the jittering phase. The invention guarantees the low delay and high reliability of the high-priority grouping, and is suitable for providing different QoS for different business priorities.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to a communication networking method, in particular to a multi-priority multi-channel MAC protocol self-adaptive shaking method based on network load feedback. Background technique [0002] The aviation communication network system needs low-latency, distributed, and self-organized network collaboration capabilities when performing certain tasks. It has the characteristics of strict time constraints, high quality requirements for information interaction, and multi-task collaboration. The ability to exchange information and share information has put forward high requirements. In order to meet the distributed, low-latency, and self-organizing capability requirements, the architecture of the Ad hoc network is generally adopted. Among them, the MAC protocol, as the key research content of the aviation Ad hoc network, mainly solves the problem of how to efficiently share the communicati...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-priority multi-channel MAC protocol adaptive jitter method based on network load feedback, which solves the problem of distinguishing business priority services in aviation Ad hoc networks, and can provide strict timeliness and reliability for the highest priority business. Reliability guarantee, while solving the problem of performance degradation under heavy load of random access MAC protocols

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