Power distribution method and device in DASs (Distributed Antenna Systems) containing D2D (Device to Device) communication in multiplexing mode

An allocation method, technology of multiplexing mode, applied in power management, wireless communication, machine-to-machine/machine-type communication services, etc.

Inactive Publication Date: 2018-05-01
SHENZHEN UNIV
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the research on D2D communication is concentrated in CAS. A large number of studies have shown that D2D communication in CAS can effectively increase the capacity of th

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power distribution method and device in DASs (Distributed Antenna Systems) containing D2D (Device to Device) communication in multiplexing mode
  • Power distribution method and device in DASs (Distributed Antenna Systems) containing D2D (Device to Device) communication in multiplexing mode
  • Power distribution method and device in DASs (Distributed Antenna Systems) containing D2D (Device to Device) communication in multiplexing mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] The present invention provides a method for allocating power in a DAS with D2D communication in a multiplexing mode, wherein the model of the DAS (Distributed Antenna Systems, Distributed Antenna System) is as follows figure 1 As shown, specifically, a single cell is considered in the present invention, the DAS includes n remote access units RAU (Remote Access Units, RAUs), and the n RAUs are distributed in the communication cell, wherein RAU1 is located in the communication cell The center of the cell, which can be regarded as a central processing unit, the remaining n-1 RAUs are connected ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention is applicable to the technical field of base station communication, and provides a power distribution method in DASs (Distributed Antenna Systems) containing D2D (Device to Device) communication in a multiplexing mode. The optimal power distribution method applicable to maximizing the SE (Spectral Efficiency) comprises the steps of firstly performing initialization, and then calculating P1(i) corresponding to the i-th iteration according to a formula of a CCCP algorithm; enabling i=i+1, calculating P1(i+1) corresponding to the (i+1)-th iteration; if a 2-norm of the difference between P1(i+1) and P1(i) is less than [xi], enabling P1(i+1) to be the optimal power, and terminating the iterative operation; and the method applicable to maximizing the EE (Energy Efficiency) comprises the steps of firstly performing initialization, and then calculating P2(t) corresponding to the t-th iteration according to the formula of the CCCP algorithm; enabling t=t+1, calculating P2(t+1) corresponding to the (t+1)-th iteration; substituting the calculated P2(t+1) into the energy efficiency EEd2d of the system after the D2D communication is added to calculate [omega]1(t+1); and if an absolute value of a transformed optimization function h1(P2(t+1), [omega]1(t+1)) when the EE is maximized is less than [xi], enabling P2(i+1) to be the optimal power, and terminating the iterative operation. The method provided by the invention improves the communication quality of a communication cell and reduces the energy consumption.

Description

technical field [0001] The invention belongs to the technical field of base station communication, and in particular relates to a power allocation method and device in a DAS including D2D communication in a multiplexing mode. Background technique [0002] With the rapid development of the data age, the rapid growth of communication rate and energy consumption has become a huge challenge for modern wireless communication networks. Due to the natural defects of the centralized antenna system (Co-located Antenna Systems, CAS), in order to meet the growing business needs, researchers have proposed the Distributed Antenna Systems (Distributed Antenna Systems, DAS). It has become an effective means to increase the bandwidth of the communication system, meet the user's communication quality and reduce the energy consumption in the communication. DAS is different from traditional CAS, all its base station antennas are scattered in the whole cell, because of this, it can effectively...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04W4/70H04W52/02H04W72/04
CPCH04W52/0206H04W72/0473H04W4/70Y02D30/70
Inventor 何春龙李兴泉张策田楚陈前刘颖
Owner SHENZHEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap