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Multi-user multi-mode D2D communication resource allocation method based on energy efficiency

A communication resource allocation and energy efficiency technology, applied in the field of energy efficiency-based multi-user multi-mode D2D communication resource allocation

Active Publication Date: 2021-04-09
WENZHOU UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current resource allocation method only allocates resources from a single mode, and does not cooperate with multiple modes to make the best use of resources.

Method used

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  • Multi-user multi-mode D2D communication resource allocation method based on energy efficiency
  • Multi-user multi-mode D2D communication resource allocation method based on energy efficiency
  • Multi-user multi-mode D2D communication resource allocation method based on energy efficiency

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Experimental program
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Embodiment

[0046] refer to image 3 , a multi-user multi-mode D2D communication resource allocation method based on energy efficiency, comprising the following steps:

[0047] 1) Construct a heterogeneous network model in which the cellular network and D2D communication share spectrum: such as figure 1 As shown, it is assumed that there are N cellular users, M pairs of D2D users and K idle relay users in the heterogeneous network where the cellular network and D2D communication share spectrum, and N≥M, and the cellular user set uses N={1,2, ...,n} represents, the user set of D2D users is represented by M={1,2,...,m}, and the relay user set is represented by K={1,2,...,k};

[0048] 2) Calculate the D2D user SNR and the cellular user SNR in the heterogeneous network: calculate the D2D user j’s and cellular user i's and the D2D user j after the introduction of the relay user and cellular user i's When the D2D communication is in the direct mode, the D2D user j's with cellular use...

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Abstract

The invention discloses a multi-user multi-mode D2D communication resource allocation method based on energy efficiency. The method comprises the following steps: 1) constructing a heterogeneous network model of a cellular network and a D2D communication shared spectrum; 2) calculating a D2D user signal-to-noise ratio and a cellular user signal-to-noise ratio in the heterogeneous network; 3) obtaining an energy efficiency expression; 4) selecting a transmission mode according to the distance between the D2D users and the signal-to-noise ratio; 5) searching an optimal relay node in the relay mode; 6) obtaining the transmitting power range of a signal transmitting end; 7) obtaining the optimal transmitting power and energy efficiency; 8) searching for an optimal cellular network link for a D2D user for multiplexing, so D2D communication can be better fused with cellular communication, the influence on the cellular communication is reduced, and the concept of green communication is better met.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an energy efficiency-based multi-user multi-mode D2D communication resource allocation method. Background technique [0002] With the explosive growth of multimedia data and the continuous popularization of mobile devices, the problem of insufficient wireless resources in traditional cellular networks has become increasingly prominent. As one of the key technologies in the future communication architecture, device-to-device (D2D for short) communication provides a new direction to solve the above problems, using D2D communication technology under the Underlay situation to replace the base station (BS for short). ) to realize part of the near-field communication and improve the access and load capacity of the network, which is also in line with the concept of green communication. [0003] However, in the Underlay situation, it will cause mutual interference between...

Claims

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Application Information

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IPC IPC(8): H04W40/22H04W76/14
CPCH04W40/22H04W76/14Y02D30/70
Inventor 肖海林覃琦超汪鹏君周迪潘永才翟雷毛淑霞
Owner WENZHOU UNIVERSITY
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