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Dynamic access method based on energy efficiency and spectral efficiency under ultra-dense network

An ultra-dense network and energy-efficient technology, applied in the field of dynamic access based on energy efficiency and spectrum efficiency, can solve problems such as the inability to meet the surge in user traffic

Active Publication Date: 2016-02-24
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a dynamic access method based on energy efficiency and spectrum efficiency in an ultra-dense network, aiming at the fact that the existing communication scenarios cannot meet the surge of user traffic.

Method used

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  • Dynamic access method based on energy efficiency and spectral efficiency under ultra-dense network
  • Dynamic access method based on energy efficiency and spectral efficiency under ultra-dense network
  • Dynamic access method based on energy efficiency and spectral efficiency under ultra-dense network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The ACS in Embodiment 1 selects 5 APs, including: 1 relay type, 1 pico base station type and 3 home base station types; the ACS in embodiment 2 selects 5 APs that are all home base station types.

[0063] Step 2, each divided ACS corresponds to a local control unit, and the local control unit directly controls each AP in each ACS;

[0064] The local control unit selects relay stations, each relay station corresponds to an ACS, and directly controls each AP in the ACS.

[0065] Step 3: When the user equipment enters a certain ACS, the local control unit activates all APs subordinate to the ACS. The ACS entered by the user equipment is set as the current ACS;

[0066] Step 4: Group the APs in the current ACS according to the data rate requirement of the user equipment.

[0067] Grouping must be able to provide services that meet user needs, rather than guaranteeing user needs as much as possible. If the AP does not provide services in the current ACS, the local control...

Embodiment 2

[0119] Energy efficiency at constant bandwidth dynamic power:

[0120] One of the three unified AP types, all of which are home base station types. AP cooperation provides users with a rate that meets their business needs, and the maximum transmission power is limited to 0.1 watts. The grouping results including power allocation and AP selection are shown in the following formula:

[0121] x 21 ={1,1,1,1,1,0.07,0.08,0.05,0.02,0.08}

[0122] x 22 ={1,0,1,1,1,0.08,0.09,0.03,0.05,0.03}

[0123] x 23 ={1,1,1,1,1,0.002,0.07,0.08,0.01,0.05}

[0124] x 24 ={1,1,1,1,0,0.03,0.05,0.03,0.05,0.06}

[0125] x 25 ={1,1,1,1,1,0.01,0.003,0.02,0.07,0.002}

[0126] x 26 ={0,1,1,1,1,0.08,0.07,0.073,0.05,0.03}

[0127] According to the results, the energy efficiency diagram drawn as Figure 4 As shown, it can be concluded from the results that under the same simulation parameters, the active group rate C provided to users in this scenario is almost the same as that of the above-mentio...

Embodiment 3

[0136] 5 APs are selected for mixed networking. The AP types are 1 relay type, 1 pico base station type and 3 home base station types. The 3 types of APs provide services for users in a cooperative manner; realize the power and bandwidth of APs joint resource allocation; the service data rate requirement is R=5×10 8 bps

[0137] The dynamic power and dynamic bandwidth allocation under mixed AP types are shown in Table 4:

[0138] Table 4

[0139] AP status

1

1

1

1

1

AP power (W)

0.06

0.3

0.04

0.07

0.03

AP Bandwidth (MHz)

28.2

15.1

29.5

29.7

18.2

[0140] AP status

1

1

1

1

1

AP power (W)

0.5

0.16

0.02

0.02

0.08

AP Bandwidth (MHz)

6.01

28.1

33.3

15.3

27.2

AP status

1

1

1

1

1

AP power (W)

0.36

0.46

0.06

0.09

0.03

AP Bandwidth (MHz)

20.9

27....

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Abstract

The invention discloses a dynamic access method based on energy efficiency and spectral efficiency under an ultra-dense network. The method comprises the following steps of (1) carrying out ACS (Access Control System) division on wireless APs (Access Point) under the ultra-dense network; (2) enabling each divided ACS to be respectively corresponding to one local control unit; (3) when user equipment enters one ACS, enabling the local control unit to activate all Aps belonging to the ACS; (4) grouping the APs in the current ACS according to the data rate requirement of the user equipment; and (5) respectively comparing a rate C of an activated group and a rate requirement R of a user, and judging whether the current group meets user requirements; if yes, not changing grouping of the current ACS and finishing an algorithm, otherwise regrouping the Aps in the current ACS. The method has the advantages that a dynamic resource scheduling function is realized, the energy loss is reduced along with increase of the business rate requirement and the energy efficiency is improved; through dynamic allocation of bandwidth, the spectral efficiency is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of networking and resource allocation, in particular to a dynamic access method based on energy efficiency and spectrum efficiency in an ultra-dense network. Background technique [0002] 4G is already in the period of commercial deployment. Although the peak rate of 4G can reach hundreds of megabits per second, due to the development of smartphones, tablets and the Internet of Things, machine-to-machine communications have increased dramatically. 4G will face a large-scale surge in wireless traffic in ten years. For mobile Communication requires low latency and high automation requirements have gone beyond the scope of advanced International Mobile Telecommunications IMT-Advanced (InternationalMobileTelecommunications-Advanced) technology. [0003] In response to this situation, 5G came into being, and ultra-dense network is a strong candidate technology for 5G. [0004] In the ultra-dense network, the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/00
CPCH04W74/002H04W72/53Y02D30/70
Inventor 李曦迂姗姗纪红王珂张鹤立
Owner BEIJING UNIV OF POSTS & TELECOMM
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