KR20100137722A - Apparatus and method for transmit antenna selection in multiple antennas communication system - Google Patents

Abstract

PURPOSE: An antenna transmission device and a method thereof for reducing the operation quantity in a multiple antenna communication system are provided to calculate the singular value toward the channel of each part transmission antenna combination generation. CONSTITUTION: A generating unit(110) generates partial transmission antennas sets through the combination according to the number of transmission antennas. An operation unit(120) calculates the unusual values about the channels of the part transmission antenna combination generations. In case the calculated singular value satisfies the predetermined threshold value, a selecting unit(130) selects the transmission antenna combination generation corresponding to the calculated singular value.

Description

Apparatus and method for selective antenna transmission in multi-antenna communication system {APPARATUS AND METHOD FOR TRANSMIT ANTENNA SELECTION IN MULTIPLE ANTENNAS COMMUNICATION SYSTEM}

Embodiments of the present invention relate to a multi-antenna communication system.

The invention of the Ministry of Knowledge Economy and ICT IT It is derived from the research conducted as part of the original technology development project [Task Management No .: 2008-F-001-01, Project Name: Research on the Environment-Adaptive Autonomous Control Technology for the Wireless Communication Method].

Multi-antenna transmission technique has several advantages that can be obtained through spatial diversity and spatial multiplexing, but has a disadvantage in that complexity is increased because multiple RF chains must be implemented. . A selective antenna transmission technique has been proposed as a method to overcome the above disadvantages while taking advantage of the multiple antenna technique.

이므로 수신 장치로부터 송신 장치로 전해지는 피드백 정보량은

이다. 여기서,

는 송신 장치에 배치된 송신 안테나의 개수이고

은 선택되어 실제 전송에 사용되는 송신 안테나의 개수이다.Since the selective antenna transmission scheme uses a method of selecting an optimal transmission antenna and assigning the selected antenna to a given RF chain, complexity can be reduced by reducing the number of RF chains. In addition, the selective antenna transmission technique can additionally obtain diversity gain by the number of antennas not used. In order to use the selective antenna transmission scheme, an optimal antenna set information is fed back from a receiving device that identifies a channel state. The partial antenna set that can be selected

Since the amount of feedback information transmitted from the receiving device to the transmitting device is

to be. here,

Is the number of transmitting antennas arranged in the transmitting apparatus

Is the number of transmit antennas selected and used for actual transmission.

However, the conventional selective antenna transmission technique requires a large amount of computation to find the optimal partial transmit antenna set as the number of antennas increases. In an effort to reduce the complexity by reducing the amount of association, the channel information of the antenna having a small mutual information is ignored using mutual information of the channel or the channel component having a high correlation is measured by measuring the correlation of the channel. A method of reducing complexity by reducing the channel size has been proposed.

However, in the embodiments of the present invention, the complexity is improved by developing a new selection algorithm, rather than lowering the complexity by manipulating the channel value as in the conventional method described above.

An embodiment of the present invention calculates a singular value for a channel of each partial transmit antenna set until a partial transmit antenna set is found that satisfies a preset threshold value, and calculates the singular value for the remaining partial transmit antenna set. Provided are an apparatus and method for selective antenna transmission of a multi-antenna communication system that can reduce complexity by not calculating a singular value of a channel.

According to an embodiment of the present invention, by using the characteristic that the greater the distance between multiple antennas (transmission antennas), the greater the probability that channel correlation is lower, and performing singular value calculation from a partial transmission antenna set having a large distance between each transmission antenna, Provided are an apparatus and method for selective antenna transmission of a multi-antenna communication system to reduce complexity by reducing the complexity.

The problem to be solved by the present invention is not limited to the above-mentioned problem, another task (s) not mentioned will be clearly understood by those skilled in the art from the following description.

An selective antenna transmission apparatus of a multi-antenna communication system according to an embodiment of the present invention includes a generation unit for generating a plurality of partial transmission antenna sets through a combination according to the number of transmission antennas used for actual transmission among all transmission antenna sets; A calculator for calculating a singular value for each channel of the generated partial transmit antenna set; And a selector for selecting a partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set when the calculated singular value satisfies a preset threshold.

An selective antenna transmission apparatus of a multi-antenna communication system according to an embodiment of the present invention includes a generation unit for generating a plurality of partial transmission antenna sets through a combination according to the number of transmission antennas used for actual transmission among all transmission antenna sets; An operation unit that determines a priority for each of the generated partial transmit antenna sets based on a distance between each transmit antenna and calculates a singular value for each channel of the generated partial transmit antenna sets according to the determined priority. ; And a selector for selecting a partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set when the calculated singular value satisfies a preset threshold.

Selective antenna transmission method of a multi-antenna communication system according to an embodiment of the present invention comprises the steps of: generating a plurality of partial transmission antenna sets through a combination according to the number of transmission antennas used for actual transmission of the entire transmission antenna set; Calculating a singular value for each channel of the generated partial transmit antenna set; And when the calculated singular value satisfies a preset threshold, selecting the partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set.

Selective antenna transmission method of a multi-antenna communication system according to an embodiment of the present invention comprises the steps of: generating a plurality of partial transmission antenna sets through a combination according to the number of transmission antennas used for actual transmission of the entire transmission antenna set; Determining a priority for each of the generated partial transmit antenna sets based on a distance between each transmit antenna; Calculating a singular value for each channel of the generated partial transmit antenna set according to the determined priority; And when the calculated singular value satisfies a preset threshold, selecting the partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set.

Specific details of other embodiments are included in the detailed description and the accompanying drawings.

Advantages and / or features of the present invention and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

According to an embodiment of the present invention, until a partial transmit antenna set is found that satisfies a threshold value, a singular value for a channel of each partial transmit antenna set is calculated, and for the remaining partial transmit antenna sets, By not calculating the singular values of the channels, complexity can be reduced by reducing the amount of computation.

According to an embodiment of the present invention, the singular value calculation is performed from a set of partial transmit antennas having a large distance between transmit antennas by using a characteristic that a channel correlation is low as a distance between multiple antennas (transmit antennas) increases. Therefore, the complexity can be reduced by reducing the amount of computation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a selective antenna transmission apparatus of a multi-antenna communication system according to an embodiment of the present invention.

Referring to FIG. 1, the selective antenna transmission apparatus 100 of the multi-antenna communication system according to an exemplary embodiment of the present invention may include a generation unit 110, an operation unit 120, a selection unit 130, and a control unit 140. It may include.

The generation unit 110 generates a plurality of partial transmit antenna sets according to the total number of transmit antennas and the number of antennas to be actually used for transmission. That is, the generation unit 110 generates all possible partial transmission antenna sets by combining antennas according to the number of transmission antennas to be used for actual transmission among the entire transmission antenna sets, and generates information on each of the generated partial transmission antenna sets (eg, Index) may be provided to the operation unit 120.

For example, it is assumed that the entire transmit antenna set is [antenna 1, 2, 3, 4], and the number of transmit antennas to be used for actual transmission is two. In this case, the generator 110 may combine all possible combinations of two antennas, that is, [antenna 1, 2], [antenna 1, 3], [antenna 1, 4], [antenna 2, 3], [antenna 2, 4] and [antennas 3 and 4] can be generated as the plurality of partial transmission antenna sets.

The calculator 120 may receive the index from the generator 110 and calculate a singular value for each channel of the generated partial transmit antenna set. In this case, when the calculated singular value satisfies a preset threshold vaule, the operation unit 120 may determine the remaining partial transmit antenna set of the plurality of partial transmit antenna sets that have not been calculated. The calculation of singular values for the channel can be stopped. That is, when the calculated singular value is greater than or equal to the threshold, the operation unit 120 determines that the signal-to-noise ratio (SNR) of the partial transmit antenna set corresponding to the calculated singular value is excellent, and the rest is determined. The calculation of the singular values for the channels of the partial transmit antenna set can be stopped. Here, the threshold value may be set in advance using the Poincare separation theory.

On the other hand, when the calculated singular value does not satisfy the threshold value, the calculation unit 120 does not perform the calculation until the singular value satisfying the threshold value is calculated. The singular values for can be calculated. That is, when the calculated singular value is smaller than the threshold, the operation unit 120 determines that the signal-to-noise ratio (SNR) of the partial transmit antenna set corresponding to the calculated singular value is not excellent, and thus the threshold is determined. The singular value for the channel of the remaining partial transmit antenna set can be continuously calculated until a singular value greater than or equal to the value is calculated.

When the calculation unit 120 calculates a singular value for each channel of the partial transmit antenna set, the partial transmit antenna set is randomly selected so as not to overlap, and the singularity for the channel of the selected partial transmit antenna set is not included. The value can be calculated.

Alternatively, the calculation unit 120 determines a priority for each of the generated partial transmit antenna sets based on the distance between each transmit antenna, and according to the determined priority, the channel of each of the generated partial transmit antenna sets The singular values for can be calculated. That is, when calculating the singular value for each channel of the partial transmit antenna set, the calculator 120 may first calculate the singular value of the channel from the partial transmit antenna set having a long distance between the transmit antennas.

To this end, the selective antenna transmission apparatus of the multi-antenna communication system according to an embodiment of the present invention may further include a correlation unit for calculating a correlation value according to the distance between the respective transmission antennas. That is, the calculator 120 may calculate a singular value for each channel of the partial transmit antenna set based on the calculated correlation value. For example, the calculator 120 may first calculate a singular value of the channel from the partial transmit antenna set including the transmit antennas having the small correlation value. This is because, when the distance between the transmitting antennas is far and the channel correlation is relatively lower than that of the other partial transmitting antenna sets, the minimum singular value is higher than or equal to the reference (threshold value), so the probability of selection is high.

The selector 130 may select a partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set. Accordingly, the selective antenna transmission apparatus of the multi-antenna communication system according to an embodiment of the present invention may transmit a transmission signal to the reception apparatus using the selected partial transmission antenna set.

The controller 140 controls overall operations of the selective antenna transmitter 100 of the multi-antenna communication system according to an embodiment of the present invention, that is, the generator 110, the calculator 120, the selector 130, and the like. can do.

Hereinafter, a selective antenna transmission apparatus of a multi-antenna communication system according to an embodiment of the present invention will be described in more detail.

The selective antenna transmission apparatus of the multi-antenna communication system according to an embodiment of the present invention calculates only until a partial transmit antenna set is found that satisfies a preset threshold, and does not calculate the remaining partial transmit antenna set, thereby calculating the amount of computation. Can reduce the complexity. Here, the threshold can be determined using the Poincare separation theory. By using H _p as the product of H _corr and the unit matrix, and using the Pangancurry separation theory, we can obtain the following inequality:

λ _N ( H _p ) ≤λ _N ( H _corr )

Here, H _p represents a channel that is substantially applied among the transmit antennas, and p represents a selected partial transmit antenna set. Λ _N (A) represents the N-th largest singular value of the A matrix, and λ _min (A) represents the minimum singular value of the A matrix. Therefore, λ _N ( H _p ) can be said to be equal to λ _min ( H _p ).

In an embodiment of the present invention, a criterion (threshold value) such as α * λ _N ( H _corr ) may be obtained by multiplying the right value α between 0 and 1 by the right side of Equation 1 above. Accordingly, as shown in FIG. 2, a relationship between λ _N ( H _corr ) and α * λ _N ( H _corr ) may be formed. For reference, H _corr indicates the actual entire channel and may be expressed as Equation 2 below.

과

는 각각의 크기가

와

인 상관 행렬이다.here,

and

Is the size of each

Wow

Is a correlation matrix.

라 하면,

인 경우와

인 경우의 두 가지 경우가 발생할 수 있다.In an embodiment of the present invention, the ultimate optimal partial transmit antenna set to be selected is selected.

Say,

If and

Two cases may occur.

의 채널

에 대하여 특이값

을 구하여

보다 크거나 같으면 그

를 선택하고, 작다면 찾을 때까지 다른 부분 송신 안테나 집합에 관하여 조사할 수 있다. 이러한 경우, 본 발명의 일 실시예에서는, 최종적으로 도 3의 빗금 표시(310)에 해당되는 특이값을 갖는 부분 송신 안테나 집합을, 최적의 부분 송신 안테나 집합으로 선택할 수 있다.The former is as shown in Figure 3, in an embodiment of the present invention,

'S channel

Singular Values for

To obtain

Is greater than or equal to

If it is small, we can investigate other partial transmit antenna sets until found. In this case, in one embodiment of the present invention, a partial transmit antenna set having a singular value corresponding to the hatched mark 310 of FIG. 3 can be finally selected as an optimal partial transmit antenna set.

를 포함한 모든

에 대하여 조사하게 되며, 상기 기준(임계값)을 넘는 부분 송신 안테나 집합을 찾지 못하게 된다. 즉, 본 발명의 일 실시예에서는,

번의 연산과 비교를 통해서도 상기 기준을 만족시키는

를 찾지 못하게 되며, 계산한

개의 특이값의 최대값에 해당하는

를, 최적의 부분 송신 안테나 집합으로 선택할 수 있다.The latter case is as shown in Figure 4, and in one embodiment of the present invention, the optimal partial transmit antenna set

Including all

In this case, a partial transmit antenna set exceeding the reference (threshold value) cannot be found. That is, in one embodiment of the present invention,

Satisfies the above criteria through comparison and calculation

Will not be found,

Is the maximum of the singular values

May be selected as an optimal partial transmit antenna set.

값의 설정에 따라 상기와 같이 전자와 후자의 경우로 나뉘게 되며,

가 상대적으로 작게 설정이 되어 전자의 경우가 되면 연산량이 줄어들어 복잡도가 감소하게 되지만 약간의 성능 저하를 가져올 수 있다. 반면,

가 상대적으로 크게 설정이 되어 후자가 되면 복잡도는 줄어 들지 않지만 성능은 최적이 될 수 있다. 따라서,

값에 따라 계산량과 성능 간의 트레이드 오프(trade-off)가 존재하므로, 본 발명의 일 실시예에서는

값을 적절하게 설정할 필요가 있다.Thus, in one embodiment of the present invention,

According to the value setting, it is divided into the former and the latter case as above.

Is set to be relatively small, and the former case reduces the computational complexity and reduces the complexity, but may cause some performance degradation. On the other hand,

Is set relatively large so that the latter does not reduce complexity, but performance can be optimal. therefore,

Since there is a trade-off between the amount of computation and the performance depending on the value, in one embodiment of the present invention

You need to set the value appropriately.

On the other hand, in one embodiment of the present invention, the complexity can be further reduced in consideration of the correlation according to the distance between each transmitting antenna. In one embodiment of the present invention, a singular value for a channel of each partial transmit antenna set is sequentially obtained from a partial transmit antenna set having a long distance between each transmit antenna to a partial transmit antenna set having a minimum distance between each transmit antenna. Can be calculated

This is because, when the distance between each transmit antenna is far and the channel correlation is relatively lower than that of other partial transmit antenna sets, the minimum singular value is higher than or equal to the reference, and thus the probability of selecting the optimal partial transmit antenna set is high. Therefore, according to an embodiment of the present invention, an optimal partial transmit antenna set may be selected while further reducing complexity by further reducing computation amount.

이고 3가지의 그룹으로 나뉘어져 있다고 가정한다. 여기서, 상기 각 그룹은 부분 송신 안테나 집합을 가리킨다. 이러한 경우, 본 발명의 일 실시예에서는 그룹 1(510), 그룹 2(520), 그룹 3(530) 순서로 순차적으로 각 부분 송신 안테나 집합의 채널에 대한 특이값을 계산할 수 있다.For example, as shown in FIG. 5,

And it is divided into three groups. Here, each group indicates a partial transmit antenna set. In this case, in one embodiment of the present invention, a singular value for a channel of each partial transmit antenna set may be sequentially calculated in the order of group 1 510, group 2 520, and group 3 530.

Performance and complexity that can be obtained through simulation according to an embodiment of the present invention are shown in FIGS. 7 and 8, respectively. Simulation according to an embodiment of the present invention is in accordance with the environment as shown in FIG.

값의 변화에 따른 성능 변화를 보인 도면이다.7 is obtained through a simulation according to an embodiment of the present invention

The figure shows the performance change according to the change of the value.

가 1인 경우는 가능한 모든 부분 송신 안테나 집합에 대해 특이값을 비교해서 최적의 부분 송신 안테나 집합을 선택할 수 있다.

가 0인 경우 무작위로 부분 송신 안테나 집합을 선택하기 때문에 다이버시티 이득을 전혀 얻을 수 없으며,

다중 안테나 시스템의 공간 다중화 송신과 간섭 제거 수신기를 사용했을 때의 성능과 같은 결과를 얻을 수 있음을 알 수 있다.As shown in FIG.

If 1, the optimal partial transmit antenna set may be selected by comparing singular values for all possible partial transmit antenna sets.

Is 0, no diversity gain can be obtained at all because the randomly selected partial transmit antenna set is selected.

It can be seen that the same results can be obtained when the spatial multiplexing transmission of the multi-antenna system and the interference cancellation receiver are used.

가 1이 아닌 경우, 즉

가 0에서 1 사이의 값을 가지는 경우, 복잡도를 낮출 수 있으면서도 최적의 부분 송신 안테나 집합을 선택할 수 있는 성능을 얻을 수 있음을 알 수 있다.In comparison,

Is not 1, that is,

When 0 has a value between 0 and 1, it can be seen that the performance of selecting the optimal partial transmit antenna set can be obtained while reducing the complexity.

FIG. 8 is a diagram illustrating a trade-off relationship between signal-to-noise ratio performance versus complexity when bit error probability 10 ^-3 .

값의 크기가 작아질수록 계산량은 줄어들지만 성능은 저하되고,

값의 크기가 클수록 계산량은 증가하지만 성능은 좋아짐을 알 수 있다. 따라서, 본 발명의 일 실시예에서는 적절하게

값을 선택함으로써 최소한의 계산량으로 최적의 성능을 얻을 수 있다. 또한, 각 송신 안테나 간의 거리가 멀리 떨어진 부분 송신 안테나 집합부터 조사(특이값 계산)를 함으로써 계산량을 더욱 줄일 수 있다.As shown in FIG. 8,

Smaller values reduce computation, but degrade performance.

The larger the value, the more the calculation increases but the better the performance. Therefore, in one embodiment of the present invention,

By choosing a value, you can obtain optimal performance with minimal computation. In addition, the amount of calculation can be further reduced by performing irradiation (calculation of a specific value) from a partial transmission antenna set having a long distance between each transmission antenna.

9 is a flowchart illustrating a selective antenna transmission method of a multi-antenna communication system according to an embodiment of the present invention. Here, the selective antenna transmission method of the multi-antenna communication system according to an embodiment of the present invention may be performed by the selective antenna transmission apparatus 100 of FIG. 1.

Referring to FIG. 9, in step 910, the selective antenna transmitting apparatus generates a plurality of partial transmit antenna sets according to the total number of transmit antennas and the number of antennas actually used for transmission. That is, step 910 may generate all possible partial transmission antenna sets by combining the transmission antennas according to the number of transmission antennas to be used for actual transmission among the entire transmission antenna sets.

Next, in step 920, the selective antenna transmitting apparatus may calculate a singular value for each channel of the generated partial transmit antenna set.

Next, in step 930, the selective antenna transmitting apparatus may determine whether the calculated singular value satisfies a preset threshold. To this end, the selective antenna transmission apparatus compares the calculated singular value with the threshold value, and when the singular value is greater than or equal to the threshold value, determines that the singular value satisfies the threshold value. When the singular value is smaller than the threshold, it may be determined that the singular value does not satisfy the threshold.

As a result of the determination, when the singular value satisfies the threshold (YES direction 930), in operation 940, the selective antenna transmitting apparatus selects a partial transmit antenna set corresponding to the singular value, the optimal part. It can be selected as a set of transmit antennas.

Next, in step 950, the selective antenna transmitting apparatus may stop calculating the singular value for the channel of the remaining partial transmit antenna set among the plurality of generated partial transmit antenna sets that are not performed. .

On the other hand, if the singular value does not satisfy the threshold as a result of the determination (No direction of 930), the selective antenna transmitting apparatus may perform step 920. That is, the selective antenna transmitting apparatus may calculate the singular value for the channel of the remaining partial transmit antenna set until the singular value satisfying the threshold is calculated.

On the other hand, when the selective antenna transmitting apparatus calculates a singular value for each channel of the partial transmit antenna set, randomly selects the partial transmit antenna set without overlapping, and singular values for the channels of the selected partial transmit antenna set. Can be calculated.

Alternatively, the selective antenna transmitting apparatus determines a priority for each of the generated partial transmit antenna sets based on the distance between each transmit antenna, and according to the determined priority, each of the generated partial transmit antenna sets The singular values for the channel can be calculated. That is, when calculating the singular value for each channel of the partial transmit antenna set, the selective antenna transmitting apparatus may first calculate the singular value of the channel from the partial transmit antenna set having a long distance between the transmit antennas.

To this end, the selective antenna transmission apparatus may calculate a correlation value according to the distance between the respective transmission antennas, and calculate a singular value for each channel of the partial transmission antenna set based on the calculated correlation value. For example, the selective antenna transmission apparatus may first calculate a singular value of the channel from the partial transmission antenna set including transmission antennas having a small correlation value. This is because, when the distance between the transmitting antennas is far and the channel correlation is relatively lower than that of the other partial transmitting antenna sets, the minimum singular value is higher than or equal to the reference (threshold value), so the probability of selection is high.

Embodiments of the present invention include computer readable media including program instructions for performing various computer implemented operations. The computer readable medium may include program instructions, local data files, local data structures, or the like, alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, magnetic-optical media such as floppy disks, and ROM, RAM, flash memory, and the like. Hardware devices specifically configured to store and execute the same program instructions are included. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

1 is a block diagram illustrating a selective antenna transmission apparatus of a multi-antenna communication system according to an embodiment of the present invention.

2 is a diagram illustrating an example of setting a threshold value according to an embodiment of the present invention.

3 and 4 illustrate an example of selecting an optimal partial transmit antenna set by comparing a threshold value and a singular value according to an embodiment of the present invention.

FIG. 5 is a diagram illustrating an example of sequentially calculating singular values for channels of each partial transmit antenna set according to a distance between each transmit antenna.

FIG. 6 is a diagram illustrating an example of an environment of a simulation relating to performance and complexity according to an embodiment of the present invention.

값의 변화에 따른 성능 변화를 보인 도면이다.7 is obtained through a simulation according to an embodiment of the present invention

The figure shows the performance change according to the change of the value.

FIG. 8 is a diagram illustrating a trade-off relationship between signal-to-noise ratio performance versus complexity when bit error probability 10 ^-3 .

9 is a flowchart illustrating a selective antenna transmission method of a multi-antenna communication system according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: optional antenna transmitter

110: generator

120: calculator

130: selection

 140: control unit

Claims (10)

A generation unit for generating a plurality of partial transmission antenna sets through a combination according to the number of transmission antennas used for actual transmission among the entire transmission antenna sets; A calculator for calculating a singular value for each channel of the generated partial transmit antenna set; And A selection unit for selecting a partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set when the calculated singular value satisfies a preset threshold Optional antenna transmission apparatus of a multi-antenna communication system comprising a. The method of claim 1, If the calculated singular value satisfies the threshold, The calculation unit, The selective antenna transmission apparatus of the multi-antenna communication system of the generated plurality of partial transmit antenna set, the calculation of the singular value for the channel of the remaining partial transmit antenna set, the calculation is not performed. The method of claim 1, If the calculated singular value does not satisfy the threshold, The calculation unit, The apparatus for selective antenna transmission of a multi-antenna communication system for calculating a singular value for a channel of the remaining partial transmit antenna set until the singular value satisfying the threshold is calculated. The method of claim 1, The threshold is Optional antenna transmission device of a multi-antenna communication system preset using Poincare separation theory. A generation unit for generating a plurality of partial transmission antenna sets through a combination according to the number of transmission antennas used for actual transmission among the entire transmission antenna sets; An operation unit that determines a priority for each of the generated partial transmit antenna sets based on a distance between each transmit antenna and calculates a singular value for each channel of the generated partial transmit antenna sets according to the determined priority. ; And A selection unit for selecting a partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set when the calculated singular value satisfies a preset threshold Optional antenna transmission apparatus of a multi-antenna communication system comprising a. The method of claim 1, Correlator for calculating a correlation value according to the distance between each transmitting antenna More, The calculation unit, The selective antenna transmission apparatus of the multi-antenna communication system for calculating a singular value for each channel of the partial transmit antenna set based on the calculated correlation value. Generating a plurality of partial transmit antenna sets through a combination according to the number of transmit antennas used for actual transmission among the entire transmit antenna sets; Calculating a singular value for each channel of the generated partial transmit antenna set; And Selecting the partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set when the calculated singular value satisfies a preset threshold. Selective antenna transmission method of a multi-antenna communication system comprising a. The method of claim 7, wherein If the calculated singular value satisfies the threshold, Stopping the calculation of the singular values for the channels of the remaining partial transmit antenna sets among the plurality of generated partial transmit antenna sets that are not performed. Selective antenna transmission method of a multi-antenna communication system further comprising. Generating a plurality of partial transmit antenna sets through a combination according to the number of transmit antennas used for actual transmission among the entire transmit antenna sets; Determining a priority for each of the generated partial transmit antenna sets based on a distance between each transmit antenna; Calculating a singular value for each channel of the generated partial transmit antenna set according to the determined priority; And Selecting the partial transmit antenna set corresponding to the calculated singular value as an optimal partial transmit antenna set when the calculated singular value satisfies a preset threshold. Selective antenna transmission method of a multi-antenna communication system comprising a. 10. The method of claim 9, Calculating a correlation value according to the distance between each transmitting antenna More, Calculating the singular value, Calculating a singular value for each channel of the partial transmit antenna set based on the calculated correlation value; Selective antenna transmission method of a multi-antenna communication system comprising a.

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