Abstract: A wireless communication device for facilitating wireless communication is provided. The device transmits a training frame, and receives a plurality of feedback frames including channel quality information from a plurality of stations in response to the training frame. The device determines a plurality of groups based on the channel quality information in the plurality of feedback frames. Each of the plurality of groups is associated with a respective one of the plurality of stations and includes an associated station as a primary station and at least one secondary station. The device determines channel capacities of the plurality of groups and selects a group of the plurality of groups based on the channel capacities of the plurality of groups. The device determines users of the selected group as MU-MIMO users and transmits a MU PPDU in MU-MIMO for the users of the selected group.

Abstract: The present disclosure discloses systems and methods of calculating a near-maximum likelihood detection (MLD) performance capability signal to interference plus noise ratio (SINR) according to instructions stored in non-transitory computer readable memory that when executed by a processor of a multiple-input, multiple output orthogonal frequency-division multiplexing (MIMO-OFDM) wireless communications receiver device cause the processor to perform operations including the processor acquiring Hi and noise variance ?n2 for each subcarrier of a set of subcarriers between a MIMO-OFDM wireless communications transmitter device and the wireless communications receiver device, computing an average received bit mutual information rate (RBIR) over all subcarriers, converting the average RBIR to an effective SINR; and selecting a modulation coding scheme (MCS).

Abstract: The present disclosure discloses systems and methods of calculating a near-maximum likelihood detection (MLD) performance capability signal to interference plus noise ratio (SINR) according to instructions stored in non-transitory computer readable memory that when executed by a processor of a multiple-input, multiple output orthogonal frequency-division multiplexing (MIMO-OFDM) wireless communications receiver device cause the processor to perform operations including the processor acquiring Hi and noise variance ?n2 for each subcarrier of a set of subcarriers between a MIMO-OFDM wireless communications transmitter device and the wireless communications receiver device, computing an average received bit mutual information rate (RBIR) over all subcarriers, converting the average RBIR to an effective SINR; and selecting a modulation coding scheme (MCS).

Abstract: Disclosed are a spatial multiplexing method and apparatus using polarization in a multi-beam system. As the spatial multiplexing method using polarization in a multi-beam system, an embodiment of the present invention provides a spatial multiplexing method including determining different phases and different polarizations to be applied to a first beam and a second beam, precoding a signal so that the first beam and the second beam have the determined different phases, and converting polarization of the precoded signal so that the first beam and the second beam have the determined different polarizations.

Abstract: Disclosed are a method for temporal/spatial polarized beams and channel non-reciprocity correction and a multi-beam antenna apparatus using the same. According to one aspect of the present disclosure, a multi-beam antenna apparatus includes an array antenna including transmission antenna elements used for forming a plurality of transmission beams and reception antenna elements used for forming a plurality of reception beams. The multi-beam antenna apparatus separates polarized beams temporally and spatially by using two kinds of different orthogonal polarizations, while corrects a channel non-reciprocity which occurs due to temporal polarization separation.

Abstract: Disclosed are a method for temporal/spatial polarized beams and channel non-reciprocity correction and a multi-beam antenna apparatus using the same. According to one aspect of the present disclosure, a multi-beam antenna apparatus includes an array antenna including transmission antenna elements used for forming a plurality of transmission beams and reception antenna elements used for forming a plurality of reception beams. The multi-beam antenna apparatus separates polarized beams temporally and spatially by using two kinds of different orthogonal polarizations, while corrects a channel non-reciprocity which occurs due to temporal polarization separation.

Abstract: Disclosed are a spatial multiplexing method and apparatus using polarization in a multi-beam system. As the spatial multiplexing method using polarization in a multi-beam system, an embodiment of the present invention provides a spatial multiplexing method including determining different phases and different polarizations to be applied to a first beam and a second beam, precoding a signal so that the first beam and the second beam have the determined different phases, and converting polarization of the precoded signal so that the first beam and the second beam have the determined different polarizations.

Abstract: A method for discovering pharmacologically active substances from natural products at high speed, including: obtaining an activity profile by testing pharmacological activity of a plurality of samples; obtaining mass profiles based on mass spectra resulting from analysis of the samples by mass spectrometry; and determining molecular weight of pharmacologically active substances by comparing and analyzing the activity profile and the mass profile. The method allows fast discovery of pharmacologically active substances by performing high resolution mass spectrometry for numerous components included in an extract sample of natural products and comparing with the activity test data. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products.

Abstract: A method for discovering pharmacologically active substances from natural products at high speed, including: obtaining an activity profile by testing pharmacological activity of a plurality of samples; obtaining mass profiles based on mass spectra resulting from analysis of the samples by mass spectrometry; and determining molecular weight of pharmacologically active substances by comparing and analyzing the activity profile and the mass profile. The method allows fast discovery of pharmacologically active substances by performing high resolution mass spectrometry for numerous components included in an extract sample of natural products and comparing with the activity test data. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products.

Abstract: The present invention relates to a method for reconstructing protein database for identifying a protein and a method for screening a protein using the same, more precisely a method for reconstructing protein database, and a method for identifying a protein using the same. The method for reconstructing protein database and the method for identifying the protein of the invention are very useful for the investigation of endogenous proteins and their functions and interactions, and are further effectively used for the development of diagnostic and therapeutic agents for various diseases.

Abstract: The present invention relates to a method for reconstructing protein database for identifying a protein and a method for screening a protein using the same, more precisely a method for reconstructing protein database comprising the steps of i) Grouping proteins having a required homology by using the clustering software from the primary database which minimizes the overlapping of proteins and then recording sequence information of each protein group on a recording system of a computer; and ii) Designating a representative protein in each protein group and then constructing the representative protein database composed of the representative proteins, followed by recording the results containing sequence information on a recording system of a computer, and a method for identifying a protein using the same; and iii) Identifying proteins from the protein sequences of the protein group which the identified representative protein belongs to.

Abstract: The present invention relates to a method of analyzing protein modification. The method of invention for analyzing protein distribution and characteristics on one-dimensional gel provides the way to analyze proteins of samples on one-dimensional gel quantitatively and provides information on interactions among proteins and further can be effectively used for the development of a novel diagnostic and therapeutic method for a disease by screening a disease marker protein.