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MAC access method based on terahertz ultra-high-speed wireless network

A wireless network and access method technology, applied in the field of terahertz ultra-high-speed wireless network, can solve the problems of time slot resource waste, redundant control overhead and data transmission delay, so as to reduce the number of nodes and reduce the waiting time for transmission , The effect of reducing the end-to-end delay

Active Publication Date: 2014-04-16
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0009] In view of the deficiencies in the above prior art, the purpose of the present invention is to provide a terahertz ultra-high-speed wireless network based on terahertz ultra-high-speed wireless network that solves the redundant control overhead, data transmission delay and waste of time slot resources in the existing related MAC access methods. MAC access method

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  • MAC access method based on terahertz ultra-high-speed wireless network

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Embodiment Construction

[0033] A non-limiting embodiment is given below in conjunction with the accompanying drawings to further illustrate the present invention.

[0034] figure 1 is the position of the terahertz wave in the electromagnetic spectrum.

[0035] The frequency of terahertz waves is between millimeter waves and infrared light waves, which can provide wider bandwidth and larger transmission capacity.

[0036] figure 2 It is a schematic diagram of the composition of the terahertz ultra-high-speed wireless network.

[0037] The terahertz ultra-high-speed wireless network is composed of a central control node (called "PNC") and ordinary nodes (called "DEV"). Two-way data transmission can be performed between any two nodes in the network, and the data transmission rate can reach Gbps level.

[0038] image 3 It is a schematic diagram of IEEE802.15.3c superframe structure.

[0039] The superframe defined by the IEEE802.15.3c standard includes three parts: beacon frame period (Beacon), c...

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Abstract

The invention discloses an MAC access method based on a terahertz ultra-high-speed wireless network. The method includes the following steps that a Beacon1 frame is broadcasted by a PNC at the Beacon1 period; timeslot applications of DEVs are received by the PNC at the CAP period or SAP period; timeslots are distributed and distribution results are broadcasted by the PNC at the Beacon2 period; after a Beacon2 broadcast frame is received, data transmission is carried out in the timeslot, of each DEV of the CTA timeslot, in the CTAP time frame in the TDMA mode; afterwards, operation in the superframe is finished, and operation in the next superframe is carried out. The MAC access method based on the terahertz ultra-high-speed wireless network solves the problems of redundant control expenses and data transmission time delay of existing relevant MAC access methods and timeslot resource waste.

Description

technical field [0001] The invention relates to the field of terahertz ultra-high-speed wireless network technology, in particular to a terahertz ultra-high-speed wireless network that uses wireless network MAC layer access technology and assigns an independent identifier to each node in the network. Background technique [0002] Terahertz (THz) wave is an electromagnetic wave whose frequency range is 0.1THz-10THz. figure 1 As shown, the wavelength range is 0.03mm-3mm; the terahertz frequency band is the last frequency band that has not been fully recognized and utilized by humans. Although there will be certain attenuation when propagating in the air, terahertz waves can provide larger channel bandwidth and higher transmission capacity, so terahertz communication has great application potential in short-distance ultra-high-speed wireless communication. Consider applying to aspects such as indoor short-distance wireless communication. [0003] Terahertz ultra-high-speed wi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/04
Inventor 任智曹亚楠刘文朋杜保洋周逊陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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