Resource distribution method based on D2D communication under very-high frequency band

A technology of resource allocation and high frequency band, applied in the field of resource allocation scheme

Active Publication Date: 2017-12-15
CHONGQING UNIV OF POSTS & TELECOMM +1
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  • Description
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  • Resource distribution method based on D2D communication under very-high frequency band
  • Resource distribution method based on D2D communication under very-high frequency band
  • Resource distribution method based on D2D communication under very-high frequency band

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0027] The technical scheme that the present invention solves the problems of the technologies described above is:

[0028] like figure 1 As shown: Assuming that there are N cellular users randomly distributed in this cell, and each cellular user is assigned a mutually orthogonal RB, then the number of resource blocks is the number of cellular users, which is denoted as C{c=1,2,3 ..., N}, in addition, M D2D users are distributed randomly, denoted as D{d=1, 2, 3..., M}. Assuming that multiple pairs of D2D users in this cell can reuse the uplink resources of the same cellular user, in this scenario, interference will occur between cellular users and D2D users, and the interference between D2D users cannot...

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Abstract

The invention requests to protect a resource distribution method based on D2D communication under a very-high frequency band. The method comprises the steps of firstly using a linearly dependent method to select honeycomb user resources which can be reused by a D2D user; then using a data rate maximization rule to find a D2D user pair set reusing each honeycomb user resource; and at last providing a resource distribution method based on interference control, selecting the best honeycomb user from the reusable honeycomb user resources to share the resources with the D2D user by comparing the throughput size, and thus service of quality (QoS) of honeycomb communication and D2D communication is ensured. According to the method provided by the invention, interference between the D2D user and the honeycomb user can be controlled, throughput of the system and spectrum efficiency can also be enhanced, and meanwhile algorithm complexity is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a resource allocation scheme for D2D (Device to Device) communication in a VHF band. Background technique [0002] In recent years, with the prevalence of smart terminals such as mobile phones and tablet PCs, mobile data traffic has increased rapidly, and the current available frequency bands have become increasingly tight. The spectrum utilization and throughput of the network, and the 5G communication technology that can greatly increase the data transmission rate has become a research hotspot. Among them, the 5G technology that has attracted the most attention in the industry is millimeter wave and D2D communication. [0003] Introducing D2D communication technology into cellular networks can increase communication system capacity, improve system spectrum efficiency, increase data transmission rate, and reduce base station load, etc. D2D communicati...

Claims

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Application Information

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IPC IPC(8): H04W16/14H04W72/08
CPCH04W16/14H04W72/541
Inventor 文凯陈永丽易冰李校林
Owner CHONGQING UNIV OF POSTS & TELECOMM
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