CN108271241A - A kind of information rate access control optimization method and system based on resource allocation - Google Patents
A kind of information rate access control optimization method and system based on resource allocation Download PDFInfo
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- CN108271241A CN108271241A CN201711318801.2A CN201711318801A CN108271241A CN 108271241 A CN108271241 A CN 108271241A CN 201711318801 A CN201711318801 A CN 201711318801A CN 108271241 A CN108271241 A CN 108271241A
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- information rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The present invention relates to the technical fields of the control of smart home, more specifically, it is related to a kind of information rate access control optimization method based on resource allocation, while information rate including ensuring access device in a communication network by reasonable distribution power and bandwidth is guaranteed, the information rate of access device is optimized；Then it is controlled according to power correspondingly and the method for salary distribution in broadband, and the admission control of the access device based on this control household communication network, while transmission rate is ensured, the number of devices for allowing access household network as far as possible is most；The present invention optimizes the information rate of access device in household network, and the complexity of control method is low while each home equipment communicating requirement is met, and the reliability of household network is high, has directive significance to the development of smart home.
Description
Technical field
The present invention relates to the technical field of the control of smart home, more particularly, to a kind of letter based on resource allocation
Cease rate access control optimization method and system.
Background technology
With developing by leaps and bounds for computer technology, network technology, control technology and artificial intelligence etc., intelligent society has become
Development trend for the new century.Smart home also grows rapidly therewith, and compared with common household, smart home not only has
Traditional inhabitation function, while it is capable of providing information exchange function so that people can check Household information and control in outside
The relevant device of household effectively arranges the time convenient for people so that home life more safety and comfort.Smart home purpose is main
House is directed to, and applies many existing various technologies at present, such as is the sensor of various different function, relevant
Electronic equipment, control technology, security and guard technology etc., and the related electronic equipment of family is connected one as far as possible using the communication technology
Block, using component using comfort as the purpose pursued, in addition he also is able to more efficiently be managed collectively domestic affairs, so it
Introducing causes comfort, convenience, safety, high efficiency to greatly improve.
Intelligent domestic system includes internet, intelligent appliance, controller, household network and gateway.Wherein smart home net
Network and gateway are the key links that information exchange can be carried out between intelligent appliance equipment, internet and access device.However,
In intelligent home network, home equipment access household network is communicated, this will make household network consume big energy, and
The general power for serving household network is limited, and the bandwidth of each household network is limited, it is impossible to be realized
While ensureing each home equipment communication requirement, the minimal information rate of access device in household network is maximized, household is set
It is standby to carry out efficient access control.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of information rate accesses based on resource allocation
Optimization method is controlled, the information rate for ensuring access device in a communication network by reasonable distribution power and bandwidth is protected
While card, the information rate of access device is optimized.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of information rate access control optimization method based on resource allocation is provided, is included the following steps：
S1. the information rate of the equipment to accessing intelligent home network optimizes, and the information rate pair of calculation optimization
The power and the method for salary distribution of bandwidth answered；
S2. limited total service power is distributed to each access smart home net according to power distribution mode in step S1
Limited bandwidth resource allocation is accessed smart home net by the access device of network according to bandwidth allocation mode in step S1 to each
The access device of network；
S3. the admission control of access device is carried out according to the service power in step S2 and bandwidth, the access device is total
It is calculated as N number of.
The access control optimization method of the information rate based on resource allocation of the present invention, passes through reasonable distribution power and bandwidth
While ensuring that the minimum information rate of access device in a communication network is guaranteed, to the information rate of access device into
Row optimization；Then it is controlled according to power correspondingly and the method for salary distribution in broadband, and based on this control household communication network
The admission control of the access device of network while ensureing that transmission rate meets device requirement, allows access household network as far as possible
Number of devices it is maximum；The complexity of the control method of the present invention is low, and the reliability of household network is high.
Preferably, the optimization problem of maximized information rate minimum is expressed asWherein, piRepresent service
In the power of i-th of access device, wiRepresent the channel width of i-th of access device of connection, CiLetter for i-th of access device
Cease rate.The present invention, which optimizes the information rate of each access device, realizes that minimal information rate maximizes, and method is answered
Miscellaneous degree is low.
Preferably, the information rate C of i-th of access deviceiIt is calculated by formula：
Wherein, wiRepresent the channel width of i-th of access device of connection, riFor the signal-to-noise ratio of access device, andWherein, giFor channel gain, N0For channel additive white Gaussian noise power spectral density, PNIt is in other networks
Interference of the access device to access device in household network.
Preferably, limited total service power, which is limited, is expressed asWherein, piRepresent service
In the power of i-th of access device,Represent the general power for smart home communication network,It represents by i-th of household net
Network SiThe equipment group of service；The limited bandwidth resources, which are limited, to be expressed asWherein, wiRepresent i-th of access of connection
The channel width of equipment, w represent the total bandwidth of network.
Preferably, the optimization of described information rate is excellent by KKT conditions and the lagrange's method of multipliers progress of convex problem
Change.
Preferably, the equipment access control module using the suboptimization algorithm of greedy search algorithm set household
Standby admission control, ensure minimum transmission rate it is maximized simultaneously, allow as far as possible access household network number of devices
At most.
The present invention also provides a kind of information rate access control systems based on resource allocation, optimize including information rate
Module, resource distribution module and equipment access control module：
Information rate optimization module：For optimizing the information rate for adding in household network equipment, calculate communication network transmission and hold
Amount, and calculate communication network transmission capacity power distribution mode corresponding with optimization information rate and bandwidth allocation mode；
Resource distribution module：It is connect with the rate optimized module communication of described information, for in smart home communication network
Access device carries out service power distribution and bandwidth allocation；
Equipment accesses control module：It communicates and connects with the resource distribution module, accessed for control device.
Information rate optimization module connects access household network while resource allocation justice between ensureing access device
The minimum transmission rate for entering equipment optimizes, corresponding power and band when calculating the minimum transmission rate for maximizing access device
The wide method of salary distribution；Resource distribution module is under limited network service power and limited bandwidth condition, to each access household
The service power and channel width of the equipment of network are controlled, to ensure the communication service demand of equipment；Equipment access control
Module is based on the rate optimized module of information above and resource distribution module, ensures the minimal information rate maximization pair of access device
The equipment access of household network is efficiently controlled.
Preferably, the resource distribution module is included for the power distribution module of distribution power and for bandwidth allocation
Bandwidth allocation module.The service power and channel width of the equipment of each access household network are controlled, to ensure to set
Standby communication service demand.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) the information rate optimization method of the equipment of household network is accessed by research, and then to the service of access device
Power and channel width are controlled, and further design the relatively low intelligent home network of complexity and the access of each equipment is controlled
Mechanism improves the minimum transmission rate of access device in intelligent home network, improves the reliability of household network.
(2) intelligent home network of control method and control system using the present invention can be realized and be set meeting each household
While standby communicating requirement, the minimal information rate of access device in household network, the development to following smart home are maximized
Important in inhibiting.
Description of the drawings
Fig. 1 is that the present invention is based on the flow charts of the information rate of resource allocation access control optimization method.
Fig. 2 is the structure diagram that the minimal information rate based on resource allocation maximizes access control system.
Specific embodiment
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is represented is only schematic diagram rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on attached drawing to have the orientation of the instructions such as term " on ", " under ", "left", "right" or position relationship
Shown orientation or position relationship, are for only for ease of the description present invention and simplify description rather than instruction or imply meaning
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore position relationship described in attached drawing
Term is only for illustration, it is impossible to the limitation to this patent is interpreted as, it for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment 1
It is the embodiment that the present invention is the information rate access control optimization method based on resource allocation as shown in Figure 1,
Include the following steps：
S1. the information rate of the equipment to accessing intelligent home network optimizes, and it is corresponding to calculate information rate
The method of salary distribution of power and bandwidth；
S2. limited total service power is distributed to each access smart home net according to power distribution mode in step S1
Limited bandwidth resource allocation is accessed smart home net by the access device of network according to bandwidth allocation mode in step S1 to each
The access device of network；
S3. the admission control of access device is carried out according to the service power in step S2 and bandwidth, the access device is total
It is calculated as N number of.
Specifically, in intelligent home network, the information rate C of i-th of access deviceiIt is calculated by shannon formula：
R in formulaiFor the signal-to-noise ratio of access device, andWherein, pi、wiIt is that access device is assigned to respectively
Power and bandwidth, wiN0Represent additive white Gaussian noise in channel wiOn noise power, pNIt is that access in other networks is set
The standby interference to access device in household network.
The optimization problem of maximized information rate minimum in the present embodiment is represented byWherein, piTable
Show the power for serving i-th of access device, wiRepresent the channel width of i-th of access device of connection, CiIt is set for i-th of access
Standby information rate.The general power for serving network is limited, and power limited is expressed asWherein, pi
The power of i-th of access device is served in expression, and M represents the number of household network,It represents for smart home communication network
General power,It represents by i-th of household network SiThe equipment group of service；Bandwidth in each household network is also limited, band
Width is limited to be expressed as：Wherein, wiRepresent the channel width of i-th of access device of connection, w represents total band of network
It is wide.It for this convex function, is optimized using the KKT conditions and lagrange's method of multipliers of convex problem, solves maximization access
Corresponding channel width and the method for salary distribution of service power during the minimal information rate of equipment.Ensureing minimum transmission rate
Maximumlly simultaneously, the number of devices for allowing access household network as far as possible is maximum；In the present invention, access is being carried out to access device
During control, it is designed using the suboptimization algorithm of greedy search algorithm.
Embodiment 2
The minimal information rate based on resource allocation for being illustrated in figure 2 the present invention maximizes access control system, including
Information rate optimization module, resource distribution module and equipment access control module：
Information rate optimization module：For optimizing the minimal information rate for adding in household network equipment, maximum communication is calculated
Net transmission capacity, and power distribution mode when calculating maximum communication net transmission capacity and minimal information rate and bandwidth allocation side
Formula；
Resource distribution module：It is connect with the rate optimized module communication of described information, for in smart home communication network
Access device carries out service power distribution and bandwidth allocation；
Equipment accesses control module：It communicates and connects with the resource distribution module, accessed for control device.
Wherein, the resource distribution module is included for the power distribution module of distribution power and for bandwidth allocation
Bandwidth allocation module.The service power and channel width of the equipment of each access household network are controlled, to ensure equipment
Communication service demand.
In some embodiments, resource distribution module introducing include intelligent home network general power, network it is available
Total bandwidth, Channel fading gains variation Rayleigh face for variable, distribute identical bandwidth and identical to each access device
Power first distributes the different power of identical bandwidth reallocation to each access device and distributes difference to each access device
Bandwidth and these three resource allocation methods of power the maximization degree of the minimum capacity of access device is compared.
Information rate optimization module in the present embodiment is while resource allocation justice between ensureing access device, to access
The minimum transmission rate of the access device of household network optimizes, calculate maximize access device minimum transmission rate when pair
The power and bandwidth allocation mode answered；Resource distribution module is right under limited network service power and limited bandwidth condition
The service power and channel width of the equipment of each access household network are controlled, to ensure the communication service demand of equipment；
Equipment access control module is based on the rate optimized module of information above and resource distribution module, ensures the minimal information of access device
Rate, which maximizes, efficiently controls the equipment access of household network.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (8)
1. a kind of information rate access control optimization method based on resource allocation, which is characterized in that include the following steps：
S1. the information rate of the equipment to accessing intelligent home network optimizes, and the information rate for calculating optimization corresponds to
Power and bandwidth the method for salary distribution；
S2. the access that total service power is distributed to each access intelligent home network is set according to power distribution mode in step S1
It is standby, according to bandwidth allocation mode in step S1 by bandwidth resource allocation to it is each access intelligent home network access device；
S3. the admission control of access device is carried out according to the service power in step S2 and bandwidth, the access device adds up to N
It is a.
2. the information rate access control optimization method according to claim 1 based on resource allocation, which is characterized in that institute
The optimization problem for stating information rate is expressed asWherein, piThe power of i-th of access device, w are served in expressioniTable
Show the channel width of i-th of access device of connection, CiInformation rate for i-th of access device.
3. the information rate access control optimization method according to claim 2 based on resource allocation, which is characterized in that institute
State the information rate C of i-th of access deviceiIt is calculated by formula：
Wherein, wiRepresent the channel width of i-th of access device of connection, riFor the signal-to-noise ratio of access device, and
Wherein, giRepresent channel gain wiN0Represent additive white Gaussian noise in channel wiOn noise power, PNFor in other networks
Interference of the access device equipment to access device in household network.
4. the information rate access control optimization method according to claim 1 based on resource allocation, which is characterized in that institute
It states limited total service power and is limited and be expressed asWherein, piIt represents to serve i-th access device
Power,Represent the general power for smart home communication network,It represents by i-th of household network SiThe access device of service
Group, M represent the number of household network, and j represents the number of household network；The limited bandwidth resources, which are limited, to be expressed asWherein, wiRepresent the channel width of i-th of access device of connection, w represents the total bandwidth of network.
5. the information rate access control optimization method according to claim 1 based on resource allocation, which is characterized in that institute
The optimization for stating information rate is optimized by the KKT conditions and lagrange's method of multipliers of convex problem.
6. the information rate access control optimization method according to claim 1 based on resource allocation, which is characterized in that institute
It states equipment access control module and the admission control to home equipment is carried out using the suboptimization algorithm of greedy search algorithm.
7. a kind of information rate access control system based on resource allocation, which is characterized in that including information rate optimization module,
Resource distribution module and equipment access control module：
Information rate optimization module：The information rate of household network equipment is added in for optimization, calculates communication network transmission capacity, and
Power distribution mode and bandwidth allocation mode when calculating communication network transmission capacity and information rate optimize；
Resource distribution module：It is connect with the rate optimized module communication of described information, for the access in smart home communication network
Equipment carries out service power distribution and bandwidth allocation；
Equipment accesses control module：It communicates and connects with the resource distribution module, accessed for control device.
8. the information rate access control system according to claim 7 based on resource allocation, which is characterized in that the money
Source distribution module includes the power distribution module for distribution power and the bandwidth allocation module for bandwidth allocation.
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Cited By (1)
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| CN109151976A (en) * | 2018-09-07 | 2019-01-04 | 广东电网有限责任公司 | Network insertion Poewr control method and system, computer equipment, storage medium |
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