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SPMA-based hybrid channel load statistics method

A load statistics and hybrid technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problem of small correlation of network load status and achieve the effect of reducing data packet collision and repeated sending process

Inactive Publication Date: 2017-07-14
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

This method is more suitable for scenarios where the network load changes steadily, but the data sent by the nodes in the SPMA protocol network has a strong burst and intermittent nature, and the current moment has little correlation with the network load state at a certain moment before, so it is difficult to make accurate predictions

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Embodiment Construction

[0042] The present invention mainly studies the channel occupancy state of the Statistical Priority Multiple Access (SPMA) protocol, conducts statistics on the channel occupancy state from both the physical layer and the network layer, and designs an accurate hybrid channel load statistical method, The channel conflict is effectively reduced, and the real-time data transmission and high probability of successful transmission of high-priority data are guaranteed.

[0043] In order to achieve the above object, the technical idea of ​​the present invention is to obtain channel load from the physical layer and obtain channel load from the network layer. These two methods have their own advantages and disadvantages. Therefore, the present invention designs an accurate hybrid channel load statistics method by combining the advantages and disadvantages of these two methods. In the case of light load, the channel load statistical value obtained by using the physical layer has high acc...

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Abstract

The invention provides an SPMA-based hybrid channel load statistics method. The method is characterized in that a channel load is acquired from both a physical layer and a network layer; a statistical value for the channel load acquired from the physical layer is used in case of a light load; a statistical value for the channel load acquired from the network layer is used for calibration in case of a heavy load; and if the difference between the two statistical results exceeds a certain tolerance, the statistical value for the channel load acquired from the network layer is used for the calibration. The method provided by the invention has the advantages that channel conflicts can be reduced, and real-time data sending and a higher successful transmission rate for high-priority data can be ensured.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a link layer protocol or a MAC layer protocol. Background technique [0002] The multiple access protocol SPMA (statistic priority-based multiple access) based on "full-duplex" communication at the link level is implemented based on the priority probability statistics. The link layer protocol or MAC protocol describes the node access wireless Channel rules, using appropriate MAC protocols, can more reasonably allocate limited wireless bandwidth resources, which is one of the key technologies of the data link. The general structure of the Statistical Priority Multiple Access (SPMA) protocol is as follows: figure 1 shown. [0003] The protocol consists of multiple priority queues, priority competition back-off windows, priority thresholds, generation scheduling algorithms, channel load statistics, transceiver antennas and corresponding distributed control algorithms....

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Application Information

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IPC IPC(8): H04W24/08H04W24/10H04W28/04H04W28/08H04W74/08H04W80/02
CPCH04W24/08H04W24/10H04W28/08H04W74/085H04W80/02
Inventor 陈少峰石伟明杨卓凯雷一昇
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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