A method for determining the time slot structure of wireless network communication

Abstract

A time slot structure determination method for wireless networking communication, including a design method for synchronization word pulse packets, time information TOD pulse packets, and data pulse packets in the time slot structure, which is suitable for adaptive frequency hopping time division multiple access between multiple nodes Wireless networking communication realizes real-time update of frequency hopping frequency set, greatly reduces protocol overhead, and effectively improves coding gain, thereby realizing high bit rate, anti-interference, strong robustness, and multi-node networking communication.

Description

technical field [0001] The invention relates to a method for determining a time slot structure of wireless network communication, and belongs to the technical field of wireless network communication. Background technique [0002] It has become a typical model for multiple nodes to network wirelessly in space and cooperate with each other to complete tasks that a single node cannot or is difficult to complete. It is widely used in military and civilian applications, and is playing an increasingly important role. [0003] The Link16 data link in the United States can hinge multiple nodes together, adopt the architecture of no central node, and realize a certain task collaboratively. According to the address access protocol, each epoch (12.8min) is divided into 98304 time slots, which are allocated to each node in the network according to certain principles. Link16 can use different message encapsulation structures for each time slot. There are five encapsulation structures. T...

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Problems solved by technology

[0004] From the above, it can be seen that the time slot design of Link16 has the following problems: Link16 uses frequency hopping, the frequency hopping sequence is fixed, and the update field of the frequency hopping sequence is not considered in the time slot structure, which cannot be applied to adaptive frequency hopping against strong interference System; the message body of Link16 adopts RS (31, 15) error correction coding, which reduces the system throughput rate, and the coding gain is not high; the introduction of RTT message greatly increases the protocol overhead, and cannot support high-speed data transmission of nodes in the network

At present, some studies have been carried out on TDMA data link systems at home and abroad, but they all focus on time slot allocation methods and models. Slot Allocation Method and Simulation Analysis", which mainly studies the process and method of time slot allocation in time division multiple access data link, and builds a time slot reservation selection allocation model by using queuing theory, and solves the optimization of time slot allocation in TDMA network The problem is that it does not involve the design of the time slot structure of the TDMA network, and there is also a lack of design and analysis of the frequency hopping frequency set of the adaptive frequency hopping networking system

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