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User-base station bidirectional matching access method in lift-off wireless network

An access method, a two-way matching technology, applied in wireless communication, access restriction, electrical components, etc., and can solve problems such as multi-user interference

Active Publication Date: 2021-05-18
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a user-base station two-way matching access method in the airborne wireless network, through the two-way selection of users and base stations, solve the multi-user interference and load balancing problems faced by traditional user access methods, and improve user service quality

Method used

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  • User-base station bidirectional matching access method in lift-off wireless network
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  • User-base station bidirectional matching access method in lift-off wireless network

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Embodiment 1

[0048] Embodiment 1, the total number of lift-off base stations is M=5, and each lift-off base station is equipped with a 16×16 uniform rectangular antenna array (the total number of antennas is N m =256), the flight altitude is 500 meters, and the operating frequencies of different lift-off base stations are orthogonal to each other. The total number of users is L=128, and each user is equipped with a single antenna. The horizontal positions of users and lift-off base stations are randomly distributed in a rectangular area of ​​4km×4km. The noise power is -100dBm, and the center frequency is 5GHz. function 1 (x) and f 2 (x) Take the following special case

[0049]

[0050] where r = log 2 (1+x), r T is the transmission rate expected by the user, and its value is r T =14bit / s / Hz. At this time, user satisfaction F m,l Represents the closeness between the transmission rate that the base station m can actually provide and the transmission rate expected by the user, wh...

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Abstract

The invention discloses a user-base station bidirectional matching access method in a lift-off wireless network. The method comprises the following steps: initializing a non-accessed user set; calculating the satisfaction degree of any user to each lift-off base station; selecting a lift-off base station with the highest satisfaction degree; enabling the lift-off base station to determine whether to allow user access according to the revenue function; and if so, respectively updating the access user set and the non-access user set, and outputting a user access optimization result when the non-access user set is empty. Through two-way selection of the user and the base station, the problems of multi-user interference and load balancing faced by a traditional user access method are solved, and the user service quality is improved.

Description

technical field [0001] The present invention relates to the technical field of the user access method in the lift-off wireless network, in particular to the technical field of the user-base station two-way matching access method in the lift-off wireless network. Background technique [0002] In the new generation of mobile communications, the idea of ​​using multiple lift-off base stations (such as drones, lift-off balloons, airships, etc.) to provide network access for ground users has attracted widespread attention. Different from traditional ground base stations, lift-off base stations have significant advantages of wide communication coverage, good channel conditions, flexible maneuverability, and high cost-effectiveness ratio; at the same time, due to the strong line-of-sight (LoS) transmission path of air-to-ground, It also makes the channel between the launch base station and the ground user more predictable, which brings convenience to the system optimization design....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/02H04W48/20
CPCH04W48/02H04W48/20Y02D30/70
Inventor 夏晓晨许魁谢威
Owner ARMY ENG UNIV OF PLA
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