Reliable Terahertz wireless personal area network access method with high time slot utilization

A technology of access method and utilization ratio, applied in the field of terahertz wireless personal area network

Active Publication Date: 2018-01-05
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method includes three new mechanisms: "PNC adaptively uses CTA time slots based on monitoring", "dynamic number of subframe header fields" and "multi-dimensional bidirectional subframe frame body extraction". For the above CTAP, there may be idle time slots, The number of standard frame aggregation sub-headers may be fixed, and the problem

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  • Reliable Terahertz wireless personal area network access method with high time slot utilization
  • Reliable Terahertz wireless personal area network access method with high time slot utilization
  • Reliable Terahertz wireless personal area network access method with high time slot utilization

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Embodiment Construction

[0122] In a wireless personal area network where the nodes use the terahertz channel as the wireless communication channel, and the number of nodes is not less than 2 (when there are only two nodes, one node is used as a PNC, and the other node is used as a DEV), all nodes are in a static or slow-moving state ; Two-way data transmission can be directly performed between any two nodes, and each node can be either the source node of the data service or the destination node of the data service; one node is selected as the PNC, and the rest of the nodes are used as DEVs; Each node runs the reliable high-slot utilization terahertz wireless personal area network access method proposed by the present invention; during the operation of the access method, key parameters can be set according to default values.

[0123] A specific value and setting are as follows:

[0124] ●Superframe length = 10ms, the superframe length remains unchanged within 24h.

[0125] The length of the Beacon pe...

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Abstract

The invention provides a reliable Terahertz wireless personal area network access method with high time slot utilization. The method comprises the following step: dividing the network running time into multiple superframes with different lengths, wherein each superframe consists of three ordered time periods that are Beacon, CAP and CTAP. The method includes the following three new mechanisms:'multi-dimensional bidirectional subframe body extraction', 'PNC adaptively using CTA time slots based on monitoring" and 'dynamization of the number of subframe head fields', and all the new mechanisms work in the CTAP time period of the superframes. Through the steps of maximally extracting subframe bodies in standard aggregation frames from three dimensions and two directions, enabling the PNCto adaptively use the CTA time slot that is allocated to DEV but is not used when the PNC has data to be transmitted but does not have allocated time slots, and dynamically adjusting the number of the subframe head fields in the standard aggregation frames according to the actual number of the subframe heads, the new access method achieves the effects of improving the reliability and time slot utilization of data frame transmission as well as reducing control fields, and thus the success rate and throughput of the data frame transmission can be improved, and the control overhead and the average delay of data frames can be reduced.

Description

technical field [0001] The present invention belongs to the field of using Terahertz Wireless Personal Area Networks (Terahertz Wireless Personal Area Networks) technology, and in particular relates to the use of TDMA (Time Division Multiple Access, Time Division Multiple Access) in the MAC (Medium Access Control, Media Access Control) layer of the network. In) + CSMA (Carrier Sense Multiple Access, Carrier Sense Multiple Access) hybrid access mode and standard frame aggregation mechanism for terahertz wireless personal area network occasions. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency range of 0.1THz–10THz, and wavelengths between millimeter waves and infrared light waves, which can provide high bandwidth capacity while maintaining the stability of communication links. However, in the actual communication environment, it is seriously affected by atmospheric attenuation (especially water vapor absorption), resulting in a sho...

Claims

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Application Information

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IPC IPC(8): H04W74/02H04W74/04H04W74/08H04L29/06
Inventor 任智严炎吕昱辉徐兆坤曹建玲雷宏江
Owner CHONGQING UNIV OF POSTS & TELECOMM
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