CN107425893A - Generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity - Google Patents
Generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity Download PDFInfo
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- CN107425893A CN107425893A CN201710456193.5A CN201710456193A CN107425893A CN 107425893 A CN107425893 A CN 107425893A CN 201710456193 A CN201710456193 A CN 201710456193A CN 107425893 A CN107425893 A CN 107425893A
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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
- H04B7/0413—MIMO systems
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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
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
Abstract
The invention belongs to communication technical field, is related to the generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity.The invention provides a kind of sending and receiving end antenna selecting method of the generalized spatial modulation system based on power system capacity, the technology is according to channel information, select suitable dual-mode antenna set, the capacity of system is set significantly to improve, making system the BER performances of system are improved in the case where introducing less feedback quantity and increasing less complexity.
Description
Technical field
The invention belongs to Communication Anti-Jamming Techniques field, is related to generalized space modulation (Generalized Spatial
Modulation, SM) technology, orthogonal amplitude (Quadrature Amplitude Modulation, QAM) modulation technique, and its
Related MIMO (Multiple Input Multiple Output) technology, is in particular a kind of based on power system capacity
Generalized spatial modulation system sending and receiving end antenna selecting method.
Background technology
MIMO modulation techniques are the high speed transmission technologies under a kind of wireless environment, and it is configured in transmitting terminal and/or receiving terminal
More antenna elements, and advanced Space Time Coding modulation scheme is combined, can band by being made full use of to spatial degrees of freedom
Come extra diversity, multiplexing and beam forming gain.
Recently, space-modulation technique is proposed as a kind of new modulation skill as a kind of new MIMO modulation schemes
Art.The general principle of the technology is by activating different antennas, and antenna index value is used to modulate and carrys out transmission information bit.This
The essence of kind transmission plan is to utilize the independence of different channels in mimo system.Because an only antenna is activated every time,
And then a radio frequency unit and this process energy hop bit are only needed in transmitting terminal, so this approach increases transmission speed
Rate, and reduce the cost and complexity of mimo system.Generalized spatial modulation system is carried out on the basis of spatial modulation system
Extension, each time slot have more transmitting antennas to be activated, improve the spectrum utilization efficiency of system.However, its BER performance is deposited
In certain loss.
The content of the invention
The purpose of the present invention, aiming in the above-mentioned problems of the prior art, there is provided one kind is based on power system capacity
Generalized spatial modulation system sending and receiving end antenna selecting method, be cost by increasing less complexity, obtain BER performances
Significantly improve.
The technical scheme is that：Generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity,
The combination of each reception antenna includes N in the described generalized spatial modulation system of definitionrsRoot reception antenna, each transmitting antenna
Combination includes NtsRoot transmitting antenna, each transmission antenna group intersection includes m emitting antenna combination, and m is 2 power side,
This method purpose combines { R to select reception antenna1…RnAnd emitting antenna combination set { CR1…CRmCombination [Ri,CRj],
It is characterised in that it includes following steps：
A, each reception antenna combination R is obtainediWith one group of transmission antenna group intersection CRjUnder the capacity of the gsm system of composition
Boundary βij：
Wherein, HkRepresenting under the antenna combination, k-th of transmission antenna group is combined into obtain channel matrix,Represent that size is
NtsUnit square formation, ρ represent signal to noise ratio；
B, the reception antenna combination that capacity lower bound β can be made maximum and transmission antenna group intersection are selected：
Wherein, S represents the set of all satisfactory antenna selecting plan compositions, [Ri,CRj] represent a kind of day line selection
Select scheme,Represent reception antenna combination and the transmission antenna group intersection finally selected.
Beneficial effects of the present invention are that the invention provides a kind of receipts of the generalized spatial modulation system based on power system capacity
Originator antenna selecting method, the technology select suitable dual-mode antenna set, make the capacity of system significant according to channel information
Improve, the BER performances of system are improved in the case where introducing less feedback quantity and increasing less complexity making system.
Brief description of the drawings
Fig. 1 is conventional GSM system block diagram；
Fig. 2 is the system block diagram of the sending and receiving end antenna selecting method proposed by the present invention based on generalized spatial modulation system.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is described in detail：
For preferably the present invention will be described, term and generalized space used in technical solution of the present invention described herein
Modulating system transmitter architecture.
Generalized space is modulated：Assuming that GSM-MIMO systems have NtRoot transmitting antenna and NrRoot reception antenna, each time slot
Transmitting terminal only selects Np(Np<Nt) root transmitting antenna transmission data symbol.Due in NtN is selected in root transmitting antennapRoot antenna
Combine a total ofIt is individual, according to bit map rule, it is only necessary toIndividual antenna combination is used for information bit
Mapping,Expression rounds downwards.So similar Traditional Space is modulated, information bit waiting for transmission is divided into two parts, a part
For select emitting antenna combination, it is necessary to bit length forAnother part is used to select APM constellations
SymbolThe bit length needed is l2=log2(M), wherein, M is order of modulation,Represent APM constellation symbol set.
If the information bit vector of transmission is b, length L, thenAccording to transmission
Information bit select emitting antenna combination and APM constellation points after, activation combination in transmitting antenna and simultaneously send symbol
S, and remaining the antenna in the combination of selection does not keep silent then, do not send any signal.
Such as Fig. 1, b is the bit data for needing to transmit, and can be considered as L × T matrix, wherein L=log2 (M)+
2*log2 (Mary) is the amount of bits entrained by a GSM modulation symbol, and Mary is quadrature amplitude modulation (Quadrature
Amplitude Modulation, QAM) exponent number, T expression number of time slot.The amount of bits that one GSM modulation symbol is carried by
Together decided on by QAM modulation exponent number and emitting antenna combination quantity.GSM modulation criterions are to be transformed into b according to GSM translation tables
One M × T matrix x.In x, a row represent the data sent at a moment, and any one row only have in each antenna combination
Ns non-zero of antenna number, it is meant that the antenna that any time only has selected combination sends data.
Specific embodiments of the present invention system diagram as shown in Figure 2.
Transmitter architecture is roughly divided into following several steps：
Step 1：It is determined that the parameter for the system to be selected, that is, determine transmitting antenna number Nt, reception antenna number Nr, every time
The transmitting antenna number N being activateds, activation transmission antenna group number to be selected is Nts, qam symbol order of modulation average is m, root
According to
Step 2：Using the method in the content of the invention, reception antenna set, and emitting antenna combination set are obtained；
Step 3：Reception antenna and emitting antenna combination set is selected to carry out information transfer using above-mentioned steps.
Claims (1)
1. the generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity, define described generalized space modulation
The combination of each reception antenna includes N in systemrsRoot reception antenna, each emitting antenna combination include NtsRoot transmitting antenna,
Each transmission antenna group intersection includes m emitting antenna combination, and m is 2 power side, and this method purpose is to select reception day
Line combines { R1…RnAnd emitting antenna combination set { CR1…CRmIn objective cross [Ri,CRj], it is characterised in that including with
Lower step：
A, each reception antenna combination R is obtainediWith one group of transmission antenna group intersection CRjThe capacity lower bound of the gsm system of composition
βij：
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</mrow>
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Wherein, HkRepresenting under the antenna combination, k-th of transmission antenna group is combined into obtain channel matrix,Expression size is Nts's
Unit square formation, ρ represent signal to noise ratio；
B, the reception antenna combination that capacity lower bound β can be made maximum and transmission antenna group intersection are selected：
<mrow>
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Wherein, S represents the set of all satisfactory antenna selecting plan compositions, [Ri,CRj] represent a kind of antenna selecting party
Case,Represent reception antenna combination and the transmission antenna group intersection finally selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710456193.5A CN107425893A (en) | 2017-06-16 | 2017-06-16 | Generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity |
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| CN201710456193.5A CN107425893A (en) | 2017-06-16 | 2017-06-16 | Generalized spatial modulation system sending and receiving end antenna selecting method based on power system capacity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274410A (en) * | 2018-07-23 | 2019-01-25 | 华东交通大学 | A kind of generalized spatial modulation system and its modulator approach based on day line options |
| CN110417451A (en) * | 2019-08-16 | 2019-11-05 | 南通森睿信息科技有限公司 | A kind of incremental emitting antenna combination selection method of generalized space modulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120189080A1 (en) * | 2007-05-08 | 2012-07-26 | Farooq Khan | Multiple antennas transmit diversity scheme |
| CN106301495A (en) * | 2016-08-03 | 2017-01-04 | 南京理工大学 | Generalized spatial modulation system antenna selecting method based on maximum channel capacity criterion |
| CN106452533A (en) * | 2016-11-16 | 2017-02-22 | 电子科技大学 | Receiving end antenna selecting method based on maximized capacity |
| CN106792817A (en) * | 2016-12-23 | 2017-05-31 | 北京邮电大学 | For the antenna allocation method and device of distributed extensive mimo system |
-
2017
- 2017-06-16 CN CN201710456193.5A patent/CN107425893A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120189080A1 (en) * | 2007-05-08 | 2012-07-26 | Farooq Khan | Multiple antennas transmit diversity scheme |
| CN106301495A (en) * | 2016-08-03 | 2017-01-04 | 南京理工大学 | Generalized spatial modulation system antenna selecting method based on maximum channel capacity criterion |
| CN106452533A (en) * | 2016-11-16 | 2017-02-22 | 电子科技大学 | Receiving end antenna selecting method based on maximized capacity |
| CN106792817A (en) * | 2016-12-23 | 2017-05-31 | 北京邮电大学 | For the antenna allocation method and device of distributed extensive mimo system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274410A (en) * | 2018-07-23 | 2019-01-25 | 华东交通大学 | A kind of generalized spatial modulation system and its modulator approach based on day line options |
| CN110417451A (en) * | 2019-08-16 | 2019-11-05 | 南通森睿信息科技有限公司 | A kind of incremental emitting antenna combination selection method of generalized space modulation |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
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