CN109547085A - A kind of antenna selecting method, device, system, computer equipment and storage medium - Google Patents
A kind of antenna selecting method, device, system, computer equipment and storage medium Download PDFInfo
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- CN109547085A CN109547085A CN201910045508.6A CN201910045508A CN109547085A CN 109547085 A CN109547085 A CN 109547085A CN 201910045508 A CN201910045508 A CN 201910045508A CN 109547085 A CN109547085 A CN 109547085A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
Abstract
The present invention relates to Communication Anti-Jamming Techniques field, a kind of antenna selecting method, device, system, computer equipment and storage medium are disclosed.Method includes: to obtain signal to be transmitted information, constructs generalized spatial modulation system model, obtains its channel matrix；Calculate the modulus value that channel matrix respectively arranges；The modulus value of descending selection preset quantity, by the corresponding antenna set of the modulus value of preset quantity at alternative antenna set；The antenna that destination number is chosen from alternative antenna set is combined, and by all antenna combination set synthetic antenna composite sets；The minimum euclidean distance of each antenna combination in antenna combination set is calculated, and combines transmitting signal to be transmitted information for antenna combination maximum in minimum Eustachian distance as target antenna.Antenna selecting method in the embodiment of the present invention maximizes selection target antenna by the method for modulus value combination minimum Eustachian distance, greatly reduces the complexity of Antenna Selection Algorithem, additionally it is possible to guarantee the performance of selected antenna combination.
Description
Technical field
The present invention relates to Communication Anti-Jamming Techniques fields, more particularly to a kind of antenna selecting method, device, system, meter
Calculate machine equipment and storage medium.
Background technique
MIMO technique is because it can increase exponentially system transfer rate and not need to increase additional band
It is wide and one of be confirmed as the core technology of future mobile communication system.Particularly, the hair of extensive multi-input multi-output system
Antenna and receiving antenna number are penetrated much higher than traditional multi-input multi-output system, so as at double promotion transmission performance and
Message capacity.
However, as antenna amount increases substantially, traditional MIMO technique Space-Time Block Coding and vertical demixing
Space -time code needs huge radio frequency link quantity, this will consume more costs.In addition, with the increase of dual-mode antenna quantity,
Space channel quantity will significantly increase, if huge system will be consumed and provide by carrying out channel estimation and Time and Frequency Synchronization to every channel
Source.With the growth of antenna amount, the complexity of receiving end detection exponentially increases.Traditional Antenna Selection Algorithem is first is that base
Criterion algorithm is maximized in minimum Eustachian distance, is the optimal antenna selection algorithm in mobile communication system.It needs to be traversed for institute
Possible transmitting symbol, complexity with higher.Second is that the algorithm based on modulus value sequence, that is, take the corresponding letter of transmitting antenna
The transmitting antenna of the biggish several column transmitting antennas of road column vector modulus value alternatively, reduces complexity, but performance is not so good.
As it can be seen that antenna selecting method complexity in the prior art is higher, comprehensive performance is bad, lead to multiple-input and multiple-output
System it is at high cost.
Summary of the invention
Based on this, it is necessary to for above-mentioned problem, provide a kind of antenna selecting method, device, system, computer equipment
And storage medium.
In one of the embodiments, the present invention provides a kind of antenna selecting method, described method includes following steps:
Signal to be transmitted information is obtained, according to the signal to be transmitted information architecture generalized spatial modulation system model, and
The generalized spatial modulation system model is estimated by ideal communication channel, obtains the generalized spatial modulation system model
Channel matrix；
Calculate the modulus value that the channel matrix respectively arranges；
The modulus value of descending selection preset quantity, by the corresponding antenna set of the modulus value of preset quantity at standby
Select antenna set；
The antenna that destination number is chosen from the alternative antenna set is combined, and by all antenna combination sets
Synthetic antenna composite set；
Calculate the minimum euclidean distance of each antenna combination in the antenna combination set, and by the minimum Euclidean
The maximum antenna combination is combined as target antenna in distance, and the target antenna combination is for emitting the letter to be launched
Number information.
The present invention provides a kind of antenna selection apparatus in one of the embodiments, comprising:
Generalized space model creation module, for obtaining signal to be transmitted information, according to the signal to be transmitted information structure
Generalized spatial modulation system model is built, and the generalized spatial modulation system model is estimated by ideal communication channel, is obtained
The channel matrix of the generalized spatial modulation system model；
Magnitude calculation module, the modulus value respectively arranged for calculating the channel matrix；
Alternative antenna set generation module, for the modulus value of descending selection preset quantity, by preset quantity
The corresponding antenna set of the modulus value is at alternative antenna set；
Antenna combination set close generation module, for from the alternative antenna set choose destination number the antenna into
Row combination, and by all antenna combination set synthetic antenna composite sets；
Target antenna combines selecting module, for calculating the minimum of each antenna combination in the antenna combination set
Euclidean distance, and combined the antenna combination maximum in the minimum Eustachian distance as target antenna, the target day
Line is combined for emitting the signal to be transmitted information.
The present invention also provides a kind of antenna selecting systems in one of the embodiments, comprising:
Signal transmitting terminal, for sending signal；
Signal receiving end, for receiving signal；
Its line options equipment, including antenna selection apparatus as described above, for according to the transmitting antenna and described connecing
It receives the signal that antenna sends and receives and calculates simultaneously selection target antenna combination, the target antenna combination is for emitting signal.
It is described in one of the embodiments, the present invention also provides a kind of computer equipment, including memory and processor
Computer program is stored in memory, when the computer program is executed by the processor, so that the processor executes
The step of antenna selecting method described above.
In one of the embodiments, the present invention also provides a kind of storage medium, calculating is stored on the storage medium
Machine program, when the computer program is executed by processor, so that the processor executes antenna selecting method described above
Step.
Antenna selecting method, device, system, computer equipment and storage medium in the embodiment of the present invention, by first will
Antenna, which carries out screening, reduces the quantity of selection target, further maximizes selection using modulus value sequence and minimum euclidean distance
Target antenna greatly reduces the complexity of day line options, additionally it is possible to guarantee the performance of selected antenna combination.
Detailed description of the invention
Fig. 1 is the applied environment figure of the antenna selecting method provided in one embodiment；
Fig. 2 is the flow chart of the antenna selecting method provided in one embodiment；
Fig. 3 is the flow chart that target antenna combination is determined in one embodiment；
Fig. 4 is the simulation result diagram that algorithm detection is carried out in one embodiment；
Fig. 5 is the simulation result diagram that another in one embodiment carries out algorithm detection；
Fig. 6 is the structural block diagram of the antenna selection apparatus provided in one embodiment；
Fig. 7 is that the target antenna provided in one embodiment combines the structural block diagram of selecting module；
Fig. 8 is the structural block diagram of the antenna selecting system provided in one embodiment；
Fig. 9 is the internal structure block diagram of computer equipment in one embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is appreciated that term " first " used in this application, " second " etc. can be used to describe various elements herein,
But unless stated otherwise, these elements should not be limited by these terms.These terms are only used to by first element and another yuan
Part is distinguished.For example, in the case where not departing from scope of the present application, the first xx unit can be known as the 2nd xx unit,
And similarly, the 2nd xx unit can be known as the first xx unit.
Fig. 1 is the applied environment figure of antenna selecting method provided in one embodiment, as shown in Figure 1, applying ring at this
In border, including antenna 100, transmitting terminal 110, receiving end 120 and day line options equipment 130.
Antenna 100 is a kind of converter, it the guided wave propagated on transmission line, be transformed into unbounded medium (usually
Free space) in the electromagnetic wave propagated, or carry out opposite transformation.It is used to emit or receive electromagnetic wave in wireless device
Component.The engineering systems such as radio communication, broadcast, TV, radar, navigation, electronic countermeasure, remote sensing, radio astronomy, all benefits
Information is transmitted with electromagnetic wave, depends on antenna to work.In addition, in terms of transmitting energy with electromagnetic wave, non-signal
Energy radiation be also required to antenna.General antenna all has invertibity, i.e., both can be used as transmitting antenna with common antenna, it is also possible to
Make receiving antenna.
Transmitting terminal 110 and receiving end 120 are signal generation apparatus and reception device, can be user terminal, such as mobile phone,
Computer or other computer equipments etc..
Its line options equipment 130 is erected between transmitting terminal 110 and receiving end 120, for executing in the embodiment of the present invention
Antenna selecting method come realize in communication process convey signal antenna selection.
Embodiment one
As shown in Fig. 2, in one embodiment it is proposed that a kind of antenna selecting method, the present embodiment is mainly in this way
Come applied to the day line options equipment 130 in above-mentioned Fig. 1 for example, can specifically include following steps:
Step S201 obtains signal to be transmitted information, modulates system according to the signal to be transmitted information architecture generalized space
System model, and the generalized spatial modulation system model is estimated by ideal communication channel, obtain the generalized space modulation
The channel matrix of system model；
Step S202 calculates the modulus value that channel matrix respectively arranges；
Step S203, the modulus value of descending selection preset quantity, by the corresponding antenna set of the modulus value of preset quantity at
Alternative antenna set；
Step S204, the antenna that destination number is chosen from alternative antenna set are combined, and by all antenna combinations
Assemble antenna combination set；
Step S205, calculate antenna combination set in each antenna combination minimum euclidean distance, and by minimum Euclidean away from
Maximum antenna combination is combined as target antenna from, and target antenna is combined for emitting the signal to be transmitted information.
In embodiments of the present invention, generalized spatial modulation system refers to by passing through the original data bits stream of transmitting terminal
Grouping, spatial modulation module are mapped to transmitting vector, and are emitted by the activation antenna of spatial modulation selection, other are inactive
Antenna keeps silent, i.e., does not emit data.Ideal communication channel refers to the undistorted desired transmission channel in signals transmission；To
Transmitting signal message refers to the data information of radio wave carried, and the antenna of destination number refers to drops from the air modulated process in broad sense
In, it will usually activate more antennas for emitting signal to be transmitted information, for emitting the activation antenna of signal to be transmitted information
Corresponding quantity is destination number, and preset quantity is then the quantity first preselected on the basis of destination number.
In embodiments of the present invention, the generalized spatial modulation system model in step S201 is by NtRoot transmitting antenna and NrRoot
Receiving antenna composition, ideal communication channel are frequency selectivity slow fading channel, and channel matrix may be expressed as:
Wherein, H obeys multiple Gauss distribution CN (0,1), i.e. element in H is to obey that the mean value being independently distributed is 0, variance is
1 multiple Gauss stochastic variable,Indicate transmitting antenna to receiving antenna frequency selectivity slow fading channel channel gain,Expression channel matrix is Nr×NtTie up matrix.
In embodiments of the present invention, calculated in step S202 the modulus value that respectively arranges of channel matrix take two norm calculation modes into
Row, calculation formula may be expressed as:
Wherein,Indicate transmitting antenna to receiving antenna frequency selectivity slow fading channel channel gain,Table
Show and two norm calculations are carried out to channel gain.
Specifically, being ranked up to above-mentioned modulus value Z according to descending, it is as follows to obtain H modulus value sorting representationb:
Take the preceding n of ktAlternately antenna forms alternative antenna set to+m values, that is, the antenna of preset quantity is chosen, with public affairs
Formula indicates are as follows:
Wherein m is the difference of preset quantity and destination number, is the positive integer that can be adjusted in itself, for controlling
Alternative antenna set IaltSize.
By taking IaltIn ntA value, antenna selection combinations alternately are a total ofKind combination, i.e.,
In embodiments of the present invention, two norm calculations refer to 2 norms of matrix A, are exactly the transposition conjugate matrices and matrix of A
The square root of the Maximum characteristic root of the product of A refers to the linear distance of spatially two vector matrixs, similar to asking two on chessboard
Linear distance between point.
In embodiments of the present invention, step S205 be calculate antenna combination set in each antenna combination minimum it is European away from
From, and combined antenna combination maximum in minimum Eustachian distance as target antenna, it specifically includes:
Step S301 is modulated and is mapped to signal message to be launched by the antenna combination in antenna combination set,
Obtain constellation symbol corresponding with signal to be transmitted information；
In embodiments of the present invention, considering one has NtRoot transmitting antenna and NrThe generalized space of root receiving antenna modulates system
System, day line options are from NtN is adaptive selected in root transmitting antennatRoot carries out data transmission, in transmitting terminal, P (P < nt) root
Transmitting antenna is activated for sending constellation symbol.In embodiments of the present invention, the signal to be transmitted information be modulated to M member
Quadrature amplitude modulation or multi-system phase-modulation, specifically, assuming that modulation system is multi-system phase-modulation.Such broad sense is empty
Between modulating system it is a total ofKind antenna combination,Indicate binomial coefficient.It choosesKind activation antenna combination is come
Modulation intelligence bit remembers that this N kind activation antenna combination is II=[I1,I2,…,IN], whereinIt indicates to be rounded downwards.SelectionA bit determines antenna index, selectsA bit determines M constellation symbol.
Step S302, the transmitting vector of transmitting antenna is calculated according to constellation symbol, and calculation formula may be expressed as:
Wherein IkIndicate the antenna combination, modulation symbolIt is in the corresponding antenna combination
The constellation symbol that transmitting antenna is sent, S indicate the set of all constellation symbols；
Step S303 calculates minimum euclidean distance according to transmitting vector, and calculation formula may be expressed as:
Wherein, dminFor minimum euclidean distance,For the channel matrix of the correspondence antenna combination,For
The difference of the transmitting vector of the different transmitting antennas in the corresponding antenna combination；
Step S304 screens maximum antenna combination in minimum Eustachian distance, and combines as target antenna.
In embodiments of the present invention, the difference of preset quantity and destination number can carry out automatically according to the size of destination number
Adjustment to control the quantity for the antenna that alternative antenna set includes, and then is tentatively dropped by the size of control alternative antenna set
The difficulty of low selection antenna.
In addition, in embodiments of the present invention, by carrying out MATLAB emulation to maximum based on minimum Eustachian distance to algorithm
Change criterion Antenna Selection Algorithem, compared based on modulus value ranking criteria Antenna Selection Algorithem and Antenna Selection Algorithem of the invention
Compared with:
In one embodiment, as shown in figure 4, simulated conditions are transmitting antenna number Nt=6, the antenna preset quantity of selection
For nt=4, antenna destination number P=2, receiving antenna quantity Nr=4, control alternative set size parameter m=2.For simulation result
As can be seen that maximizing criterion algorithm based on minimum Eustachian distance has best performance, but its algorithm complexity is also highest
's.Algorithm in conjunction with modulus value and Euclidean distance possesses and is based on the similar performance of Euclidean distance algorithm, and its complexity is only
There is the one third based on Euclidean distance.On the other hand, modulus value algorithm is based in conjunction with the algorithm performance of modulus value and Euclidean distance ratio
Performance it is good.
In another embodiment, as shown in figure 5, simulation parameter is transmitting antenna number Nt=12, the antenna of selection is default
Quantity nt=4, antenna destination number P=2 control alternative set size parameter m=2, receiving antenna quantity Nr=4, simulation result
It is similar with Fig. 4's.As it can be seen that antenna selecting method of the invention can obtain preferably between computation complexity and transmission performance
Compromise, belongs to more efficient system optimization algorithm.
Antenna selecting method in the embodiment of the present invention reduces the quantity of selection target by the way that antenna is first carried out screening,
Selection target antenna further is maximized using modulus value sequence and minimum euclidean distance, greatly reduces answering for day line options
Miscellaneous degree, additionally it is possible to guarantee the performance of selected antenna combination.
Embodiment two
As shown in fig. 6, in one embodiment, providing a kind of antenna selection apparatus, which can collect
At in above-mentioned day line options equipment 130, can specifically include:
Generalized space model creation module 601, for obtaining signal to be transmitted information, according to signal to be transmitted information architecture
Generalized spatial modulation system model, and generalized spatial modulation system model is estimated by ideal communication channel, obtain broad sense sky
Between modulating system model channel matrix；
Magnitude calculation module 602, the modulus value respectively arranged for calculating channel matrix；
Alternative antenna set generation module 603, for the modulus value of descending selection preset quantity, by the mould of preset quantity
It is worth corresponding antenna set into alternative antenna set；
Antenna combination set closes generation module 604, and the antenna for choosing destination number from alternative antenna set carries out group
It closes, and by all antenna combination set synthetic antenna composite sets；
Target antenna combines selecting module 605, and the minimum for calculating each antenna combination in antenna combination set is European
Distance, and using antenna combination maximum in minimum Eustachian distance as target antenna combine, target antenna combination for emit to
Emit signal message.
In embodiments of the present invention, generalized spatial modulation system refers to by passing through the original data bits stream of transmitting terminal
Grouping, spatial modulation module are mapped to transmitting vector, and are emitted by the activation antenna of spatial modulation selection, other are inactive
Antenna keeps silent, i.e., does not emit data.Ideal communication channel refers to the undistorted desired transmission channel in signals transmission.
In embodiments of the present invention, generalized space model creation module 601 create generalized spatial modulation system model by
NtRoot transmitting antenna and NrPiece-root grafting receives antenna composition, and ideal communication channel is frequency selectivity slow fading channel, and channel matrix can indicate
Are as follows:
Wherein, H obeys multiple Gauss distribution CN (0,1), i.e. element in H is to obey that the mean value being independently distributed is 0, variance is
1 multiple Gauss stochastic variable,Indicate transmitting antenna to receiving antenna frequency selectivity slow fading channel channel gain,Expression channel matrix is Nr×NtTie up matrix.
In embodiments of the present invention, the modulus value that magnitude calculation module 602 calculates that channel matrix respectively arranges takes two norm calculations
Mode carries out, and calculation formula may be expressed as:
Wherein,Indicate transmitting antenna to receiving antenna frequency selectivity slow fading channel channel gain,Table
Show and two norm calculations are carried out to channel gain.
Specifically, being ranked up to above-mentioned modulus value Z according to descending, it is as follows to obtain H modulus value sorting representationb:
Take the preceding n of ktAlternately antenna forms alternative antenna set to+m values, that is, the antenna of preset quantity is chosen, with public affairs
Formula indicates are as follows:
Wherein m is the difference of preset quantity and destination number, is the positive integer that can be adjusted in itself, for controlling
Alternative antenna set IaltSize.
By taking IaltIn ntA value, antenna selection combinations alternately are a total ofKind combination, i.e.,
In embodiments of the present invention, two norm calculations refer to 2 norms of matrix A, are exactly the transposition conjugate matrices and matrix of A
The square root of the Maximum characteristic root of the product of A refers to the linear distance of spatially two vector matrixs, similar to asking two on chessboard
Linear distance between point.
As shown in fig. 7, in embodiments of the present invention, target antenna combines selecting module 605, comprising:
Signal conversion unit 701, for being carried out by the antenna combination in antenna combination set to signal message to be launched
Modulation and mapping, obtain constellation symbol corresponding with signal to be transmitted information；
In embodiments of the present invention, considering one has NtRoot transmitting antenna and NrThe generalized space of root receiving antenna modulates system
System, day line options are from NtN is adaptive selected in root transmitting antennatRoot carries out data transmission.In transmitting terminal, P (P < nt) root
Transmitting antenna is activated for sending constellation symbol.In embodiments of the present invention, the signal to be transmitted information be modulated to M member
Quadrature amplitude modulation or multi-system phase-modulation, specifically, assuming that modulation system is M-PSK.Such generalized space modulation system
It unites a total ofKind antenna combination,Indicate binomial coefficient.It choosesKind activation antenna combination carrys out modulation intelligence
Bit remembers that this N kind activation antenna combination is II=[I1,I2,…,IN], whereinIt indicates to be rounded downwards.Selection
A bit determines antenna index, selectsA bit determines M constellation symbol.
Emit vector calculation unit 702, for calculating the transmitting vector of transmitting antenna according to constellation symbol, calculation formula can
It indicates are as follows:
Wherein IkIndicate the antenna combination, modulation symbolIt is to be sent out in the corresponding antenna combination
The constellation symbol of antenna transmission is penetrated, S indicates the set of all constellation symbols；
Euclidean distance computing unit 703, for calculating minimum euclidean distance according to transmitting vector, calculation formula can be indicated
Are as follows:
Wherein, dminFor minimum euclidean distance,For the channel matrix of the correspondence antenna combination,For
The difference of the transmitting vector of the different transmitting antennas in the corresponding antenna combination；
Target antenna determination unit 704, for screening maximum antenna combination in minimum Eustachian distance, and as mesh
Mark antenna combination.
In embodiments of the present invention, the difference of preset quantity and destination number can carry out automatically according to the size of destination number
Adjustment to control the quantity for the antenna that alternative antenna set includes, and then is tentatively dropped by the size of control alternative antenna set
The difficulty of low selection antenna.
Antenna selection apparatus in the embodiment of the present invention reduces the quantity of selection target by the way that antenna is first carried out screening,
Selection target antenna further is maximized using modulus value sequence and minimum euclidean distance, greatly reduces answering for day line options
Miscellaneous degree, additionally it is possible to guarantee the performance of selected antenna combination.
Embodiment three
As shown in figure 8, in one embodiment, a kind of antenna selecting system is provided, provided in an embodiment of the present invention one
Kind antenna selecting system, comprising:
Signal transmitting terminal 801, for sending signal；
Signal receiving end 802, for receiving signal；
Its line options equipment 803, including the antenna selection apparatus in above-described embodiment, for according to transmitting antenna and reception
The signal that antenna sends and receives calculates and selection target antenna combination, and target antenna is combined for emitting signal.
Antenna selecting system in the embodiment of the present invention reduces the quantity of selection target by the way that antenna is first carried out screening,
Selection target antenna further is maximized using modulus value sequence and minimum euclidean distance, greatly reduces answering for day line options
Miscellaneous degree, additionally it is possible to guarantee the performance of selected antenna combination.
Example IV
As shown in figure 9, being a kind of structural block diagram of computer equipment provided in an embodiment of the present invention, the embodiment of the present invention is mentioned
A kind of computer equipment supplied, including memory 901, processor 902, communication module 903 and user interface 904.
Operating system 905 is stored in memory 901, for handling various basic system services and for executing hardware phase
The program of pass task；It is stored with application software 906, also for realizing each step of the antenna selecting method in the embodiment of the present invention
Suddenly.
In embodiments of the present invention, memory 901 can be high-speed random access memory, such as DRAM, SRAM, DDR,
RAM or other random access solid states storage equipment or nonvolatile memory, such as one or more hard-disc storages are set
Standby, optical disc memory apparatus, memory device etc..
In embodiments of the present invention, processor 902 can send and receive data by communication module 903 to realize block chain
Network communication or local communication.
User interface 904 may include one or more input equipments 907, such as keyboard, mouse, touch screen displays, use
Family interface 904 can also include one or more output equipment 908, such as display, loudspeaker etc..
Embodiment five
In addition, the embodiment of the invention also provides a kind of computer readable storage medium, on computer readable storage medium
It is stored with computer program, when computer program is executed by processor, so that processor executes the step of above-mentioned antenna selecting method
Suddenly.
Although should be understood that various embodiments of the present invention flow chart in each step according to arrow instruction successively
It has been shown that, but these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein,
There is no stringent sequences to limit for the execution of these steps, these steps can execute in other order.Moreover, each embodiment
In at least part step may include that perhaps these sub-steps of multiple stages or stage are not necessarily multiple sub-steps
Completion is executed in synchronization, but can be executed at different times, the execution in these sub-steps or stage sequence is not yet
Necessarily successively carry out, but can be at least part of the sub-step or stage of other steps or other steps in turn
Or it alternately executes.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a non-volatile computer and can be read
In storage medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, provided herein
Each embodiment used in any reference to memory, storage, database or other media, may each comprise non-volatile
And/or volatile memory.Nonvolatile memory may include that read-only memory (ROM), programming ROM (PROM), electricity can be compiled
Journey ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include random access memory
(RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms, such as static state RAM
(SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhanced SDRAM
(ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) directly RAM (RDRAM), straight
Connect memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of antenna selecting method, which is characterized in that described method includes following steps:
Signal to be transmitted information is obtained, according to the signal to be transmitted information architecture generalized spatial modulation system model, and is passed through
Ideal communication channel estimates the generalized spatial modulation system model, obtains the channel of the generalized spatial modulation system model
Matrix；
Calculate the modulus value that the channel matrix respectively arranges；
The modulus value of descending selection preset quantity, by the corresponding antenna set of the modulus value of preset quantity at alternative day
Line set；
The antenna that destination number is chosen from the alternative antenna set is combined, and all antenna combinations are assembled
Antenna combination set；
Calculate the minimum euclidean distance of each antenna combination in the antenna combination set, and by the minimum Eustachian distance
In the maximum antenna combination combined as target antenna, target antenna combination is for emitting the signal to be transmitted letter
Breath.
2. antenna selecting method as described in claim 1, which is characterized in that the generalized spatial modulation system model is by NtRoot
Transmitting antenna and NrPiece-root grafting receives antenna composition, and the ideal communication channel is frequency selectivity slow fading channel, and the channel matrix can
It indicates are as follows:
Wherein,Indicate transmitting antenna to receiving antenna the frequency selectivity slow fading channel channel gain,Table
Show that the channel matrix is Nr×NtTie up matrix.
3. antenna selecting method as claimed in claim 2, which is characterized in that the modulus value for calculating the channel matrix and respectively arranging
Two norm calculation modes are taken to carry out, calculation formula may be expressed as:
Wherein,Indicate transmitting antenna to receiving antenna the frequency selectivity slow fading channel channel gain,Table
Show and two norm calculations are carried out to the channel gain.
4. antenna selecting method as claimed in claim 3, which is characterized in that each in the calculating antenna combination set
The minimum euclidean distance of the antenna combination, and using the antenna combination maximum in the minimum Eustachian distance as target day
Line combination, specifically includes:
The signal to be transmitted information is modulated and is mapped by antenna combination described in the antenna combination set, is obtained
Constellation symbol corresponding with the signal to be transmitted information；
The transmitting vector of the transmitting antenna is calculated according to the constellation symbol, calculation formula may be expressed as:
Wherein IkIndicate the antenna combination, modulation symbolIt is to emit day in the corresponding antenna combination
The constellation symbol that line is sent, S indicate the set of all constellation symbols；
The minimum euclidean distance is calculated according to the transmitting vector, calculation formula may be expressed as:
Wherein, dminFor minimum euclidean distance,For the channel matrix of the correspondence antenna combination,For correspondence
The difference of the transmitting vector of the different transmitting antennas in the antenna combination.
5. antenna selecting method as claimed in claim 4, which is characterized in that the modulation system of the signal to be transmitted information is
M member quadrature amplitude modulation or multi-system phase-modulation.
6. antenna selecting method as described in claim 1, which is characterized in that the difference of the preset quantity and the destination number
Value can be adjusted automatically according to the size of the destination number, to control the antenna that the alternative antenna set includes
Quantity.
7. a kind of antenna selection apparatus, which is characterized in that described device includes:
Generalized space model creation module is wide according to the signal to be transmitted information architecture for obtaining signal to be transmitted information
Adopted spatial modulation system model, and the generalized spatial modulation system model is estimated by ideal communication channel, it obtains described
The channel matrix of generalized spatial modulation system model；
Magnitude calculation module, the modulus value respectively arranged for calculating the channel matrix；
Alternative antenna set generation module will be described in preset quantity for the modulus value of descending selection preset quantity
The corresponding antenna set of modulus value is at alternative antenna set；
Antenna combination set closes generation module, and the antenna for choosing destination number from the alternative antenna set carries out group
It closes, and by all antenna combination set synthetic antenna composite sets；
Target antenna combines selecting module, and the minimum for calculating each antenna combination in the antenna combination set is European
Distance, and combined the antenna combination maximum in the minimum Eustachian distance as target antenna, the target antenna group
It shares in the transmitting signal to be transmitted information.
8. a kind of antenna selecting system characterized by comprising
Signal transmitting terminal, for sending signal；
Signal receiving end, for receiving signal；
Its line options equipment, including antenna selection apparatus as claimed in claim 7, for according to the transmitting antenna and described connecing
It receives the signal that antenna sends and receives and calculates simultaneously selection target antenna combination, the target antenna combination is for emitting signal.
9. a kind of computer equipment, which is characterized in that including memory and processor, computer journey is stored in the memory
Sequence, when the computer program is executed by the processor, so that the processor perform claim requires any one of 1 to 6 power
Benefit requires the step of antenna selecting method.
10. a kind of storage medium, which is characterized in that be stored with computer program, the computer program on the storage medium
When being executed by processor, so that the processor perform claim requires antenna selecting method described in any one of 1 to 6 claim
The step of.
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