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Journal articles on the topic 'Configuration MISO'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Abboubi, Adil El, Fouzia Elbahhar, Marc Heddebaut, and Yassin Elhillali. "Energy Consumption Models For MISO-UWB and TR-MISO-UWB Systems." International Journal of Electronics and Telecommunications 63, no. 3 (August 28, 2017): 285–91. http://dx.doi.org/10.1515/eletel-2017-0038.

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Abstractthis paper, an energy consumption model is developed and exploited to evaluate the electrical energy consumption of ultra-wideband impulse radio (UWB-IR) systems. We develop the energy consumption models and our comparative study, on the one hand, for a system based single-input singleoutput (SISO) configuration and a multiple-input single-output (MISO) and, on the other hand, for a time reversal TR-MISO configuration and for MISO alone configuration. We consider an indoor propagation environment based on the 802.15.4a channel model. The results show very different behaviors depending on the propagation conditions, the number of antennas used, or on the number of transmitted symbols. Using such a model, a radiofrequency designer can obtain significant inputs to optimally select an adequate configuration to design an adaptive energyaware UWB-IR system.

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2

Chau, Jorge Luis, Juan Miguel Urco, Juha Pekka Vierinen, Ryan Andrew Volz, Matthias Clahsen, Nico Pfeffer, and Jörg Trautner. "Novel specular meteor radar systems using coherent MIMO techniques to study the mesosphere and lower thermosphere." Atmospheric Measurement Techniques 12, no. 4 (April 5, 2019): 2113–27. http://dx.doi.org/10.5194/amt-12-2113-2019.

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Abstract. Typical specular meteor radars (SMRs) use one transmitting antenna and at least a five-antenna interferometric configuration on reception to study the mesosphere and lower thermosphere (MLT) region. The interferometric configuration allows the measurement of the angle-of-arrival (AOA) of the detected meteor echoes, which in turn is needed to derive atmospheric parameters (e.g., mean winds, momentum fluxes, temperatures, and neutral densities). Recently, we have shown that coherent MIMO configurations in atmospheric radars, i.e., multiple input (transmitters) and multiple output (receivers), with proper diversity in transmission can be used to enhance interferometric atmospheric and ionospheric observations. In this study we present novel SMR systems using multiple transmitters in interferometric configuration, each of them employing orthogonal pseudorandom coded transmitted sequences. After proper decoding, the angle of departure (AOD) of the detected meteor echoes with respect to the transmitter site are obtained at each receiving antenna. We present successful bistatic implementations of (1) five transmitters and one receiver using coded continuous wave (CW) (MISO-CW), and (2) five transmitters and five receivers using coded CW (MIMO-CW). The latter system allows simultaneous independent observations of the specular meteor trails with respect to the transmitter (AOD) and with respect to the receiver (AOA). The quality of the obtained results is evaluated in terms of the resulting mean winds, the number of detections and the daily diffusion trail vs. altitude behavior. We show that the proposed configurations are good alternatives to explore the MLT region. When combined with multi-static approaches, they can increase the number of meteor detections, thereby improving the quality of atmospheric estimates and allowing the measurement of new atmospheric parameters (e.g., horizontal divergence, vorticity), The use of multiple collocated transmitters for interferometric AOD determination makes building a multi-static radar network easier logistically, as only one receiver per receiving site antenna is sufficient.

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Xie, Xin, Xianliang Jiang, Shixun Fan, and Dapeng Fan. "Compact design of a novel precise cable drive mechanism with high precision and large torque-to-weight ratio." Mechanical Sciences 10, no. 1 (January 11, 2019): 47–56. http://dx.doi.org/10.5194/ms-10-47-2019.

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Abstract. Precise cable drive is an elegant transmission mode and has many advantages of high efficiency, flexible layout, besides being lightweight. Since the common layout, Single-Input Single-Output (SISO) spur gear configuration, suffers from low torque-to-weight ratio and loose structure, this paper proposes a novel transmission configuration with large torque-to-weight and compact size. It combines the advantages of Multiple-Input Single-Output (MISO) configuration and bevel gear configuration. The design methods and transmission kinematics of the novel configuration are studied. An analytical model is developed for characterizing the transmission backlash of the proposed configuration, which is derived by simultaneous satisfying system's constitutive relation, equilibrium, and geometric constraints. Parametric sensitivities are carried out to investigate the influence of the major design parameter on the transmission characteristics. At last, a prototype of MISO with bevel gear configuration cable drive mechanism (MBCDM) is built, with which a series of experiments are carried out. This mechanism could achieve maximum output torque of 3.3 Nm with considerable toque-to-weight ratio of 9.649 Nm kg−1. The experimental results show that the transmission backlash and ripple torque are dominant nonlinear effects in the MBCDM system. It shows that the ripple torque is connected with the rotational displacement, with the highest peak at 694.3 cycle rad−1 and the amplitude of 24.67 µrad. The transmission backlash experimental results are in good agreement with simulation ones, with the error level of 4.14 %.

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4

Krejčí, Jakub, and Petr Beneš. "A COMPARISON OF TWO MODAL ANALYSIS METHODS: AN IMPACT HAMMER VERSUS LASER VIBROMETRY." Acta Polytechnica 60, no. 5 (November 16, 2020): 420–27. http://dx.doi.org/10.14311/ap.2020.60.0420.

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This paper presents a comparative experimental-analytical study on the performance of Multi-Input Single-Output (MISO) and Single-Input Multi-Output (SIMO) techniques to identify the modal properties of a cantilever beam. A 2-D laser interferometry was employed to perform the SIMO modal test, while for the MISO test configuration, a conventional accelerometer was used to measure the response of the structure. Comparing the experimentally-measured natural frequencies with those calculated by the FEM model, a maximum difference of 4% between natural frequencies was observed. The repeatability of both techniques is also investigated in this paper and it is shown that the difference between modal properties identified under different operators is less than 0.5% for both the MISO and SIMO techniques.

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5

Pushkar, K. L., D. R. Bhaskar, and Dinesh Prasad. "A New MISO-Type Voltage-Mode Universal Biquad Using Single VD-DIBA." ISRN Electronics 2013 (March 20, 2013): 1–5. http://dx.doi.org/10.1155/2013/478213.

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A new multiple-input single-output-(MISO-)-type multifunction voltage-mode universal biquadratic filter employing single voltage differencing differential input buffered amplifier (VD-DIBA), two capacitors, and one resistor are proposed. The proposed structure can realize second-order low pass, high pass, band pass, band stop, and all pass filter responses without altering the circuit topology. The proposed new filter configuration also provides the following advantageous features, not available simultaneously in any of the single active device /element-based universal biquad in realizing all the five filter functions known earlier so far: (i) no requirement of any passive component(s) matching condition or inversion of input signal(s), (ii) independent electronic control of angular frequency () and bandwidth (BW), and (iii) low active and passive sensitivities. SPICE simulation results have been included using 0.35 µm TSMC technology to confirm the validity of the proposed new universal biquadratic filter configuration.

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6

Shihuang Shao, Hao Ying, and Yongsheng Ding. "Necessary conditions on minimal system configuration for general MISO Mamdani fuzzy systems as universal approximators." IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics) 30, no. 6 (2000): 857–64. http://dx.doi.org/10.1109/3477.891147.

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7

Dai, Chenxi, Yonghong Chen, Fengyu Wang, Jie Wan, and Lei Wu. "A Configuration-Component-Based Hybrid Model for Combined-Cycle Units in MISO Day-Ahead Market." IEEE Transactions on Power Systems 34, no. 2 (March 2019): 883–96. http://dx.doi.org/10.1109/tpwrs.2018.2872927.

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8

Agustin, Desy, Nachwan Mufti Adriansyah, and Muhsin. "Enhancement of Twice Quasi Orthogonal Space Time Block Coded (QOSTBC) Performance System with Zero Forcing EVCM Decoder." MATEC Web of Conferences 218 (2018): 03009. http://dx.doi.org/10.1051/matecconf/201821803009.

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In today’s modern telecommunications systems, makes the number of studies and development of multiple antennas and multiple-input multiple-output (MIMO) systems to achieve high reliability and low complexity. One attractive approach to improve that performance is using technique transmit diversity which is spacetime block coding and receiver diversity i.e. zero forcing EVCM (ZF EVCM). Although some earlier MIMO standards were develop some space-time codes like (O-STBC)and (Q-OSTBC) to provide high reliability but they are limited able to achieve orthogonality. In this research will be proposed a MIMO system scheme which is an improvement of QOSTBC that used a transmission diversity technique. This improvement from QOSTBC is Twice QOSTBC uses a provision in two codeword matrices to be sent are arranged diagonally so as to have higher levels of orthogonality. In this case Twice QOSTBC highly structured (4x1) can be replaced as an equivalent EVCM channel H. The proposed Twice-QOSTBC’s results outperform other QOSTBC techniques with a difference around 3 dB for single-input multi-input (MISO) input configuration at 10-6 BER and receiver ZF EVCM has a very similar structure as the code matrix S of the underlying Twice QSTBC which can eliminates the system complexity.

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9

SUSANA, RATNA, MUHAMMAD ICHWAN, and SAVERO AL PHARD. "Penerapan Metoda Serial Peripheral Interface (SPI) pada Rancang Bangun Data Logger berbasis SD card." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 4, no. 2 (March 14, 2018): 208. http://dx.doi.org/10.26760/elkomika.v4i2.208.

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ABSTRAKSerial Peripheral Interface (SPI) adalah protokol komunikasi yang dapat digunakan sebagai interface komunikasi antara mikrokontroler dengan SD Card. Dengan menerapkan metoda SPI pada data logger berbasis SD Card, maka dapat diketahui karakteristik protokol komunikasi SPI antara mikrokontroler dengan SD Card. SD Card diformat dengan tipe FAT 16, dan data di dalam SD Card berupa sekumpulan paket data sensor yang diambil secara periodik dan disimpan dalam bentuk file dengan format.csv. Berdasarkan format paket data sensor yang dibuat, dapat dihitungwaktu perekaman data yang diperlukan agar kapasitas SD Card terisi penuh oleh data sensor. Hasil penelitian menunjukkan,bahwa metoda SPI yang diterapkan pada penelitian ini memiliki sifat akan melakukan pemeriksaan berulang pada pin MISO terhadap command yang dikirimkan oleh mikrokontroler melalui pin MOSI. Proses read/write data pada SD Card data logger memiliki keberhasilan 100%, karena SD Card telah terinisialisasi dalam mode SPI melalui perintah reset dan init SD Card. Komunikasi ini dapat dilakukan dengan menggunakan crystal 4 Mhz – 20 Mhz. Untuk pengujian konfigurasi SPI, hanya Independent Slave Configuration yang dapat digunakan pada komunikasi SPI dengan 2 SD card sebagai slave. Kata kunci: Serial Peripheral Interface (SPI), Data Logger, SD card, FAT16ABSTRACTSerial Peripheral Interface (SPI) is a communication protocol that can be applied as a communication interface between microcontroller to SD Card. By implementing the SPI method to a data logger based on SD Card, it can be known the characteristics of the SPI communications protocol between microcontroller to SD Card. SD Card formatted in FAT 16 type, and data on the SD Card is the form of sensor data packets collection which be captured periodically and saved in .csv format file. Based on the sensor data packet format is created, it can be calculated recording time data required so that the SD Card capacity completely filled by the sensor data. Research results show, that the SPI method applied in this study has the properties will do repeated testing on MISO pin to the command sent by the microcontroller through the MOSI pin. The read / write data on the SD Card data logger has a 100% success, because the SD Card has been initialized in SPI mode through the reset and init SD Card command. This communication can be established using crystal 4 Mhz - 20 Mhz. At SPI configuration testing, only the Independent Slave Configuration can be used in SPI communication with 2 SD card as a slave.Keywords: Serial Peripheral Interface (SPI), Data Logger, SD card, FAT16

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10

Fortes, Miqueas, and Oswaldo González. "Testbed for Experimental Characterization of Indoor Visible Light Communication Channels." Electronics 10, no. 11 (June 7, 2021): 1365. http://dx.doi.org/10.3390/electronics10111365.

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In this paper, we describe an experimental testbed designed to evaluate indoor visible light communications (VLC) in realistic scenarios. The system is based on a mockup where the location and orientation of the optical receiver can be modified with precision for a static configuration of walls and ceiling lamp arrangements. The system utilizes a timing synchronization method, which is based on evaluating the training sequence periods used for channel response estimation, which enables robust frame synchronization. In addition, an adaptive rate orthogonal frequency-division multiplexing (OFDM) scheme is used to assess the VLC performance throughout the receiver plane emulating a real communication. The preliminary results obtained with this prototype, considering a multiple-input single-output (MISO) scenario, demonstrate that reflection on walls yields a significant increase in data rates, which can be additionally improved if appropriate orientation of the receiver is implemented. However, vertical orientation upward of the optical receiver still constitutes a simple solution but efficient enough. Moreover, a good agreement between simulation and experimental results is observed, which confirms the suitability of the mockup as an experimental testbed for practical evaluation of indoor VLC systems, where system performance for different lamp arrangements and receiver designs, including multi-user communications, can be studied.

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11

Wang, Weimin, Huaqiang Gao, Yongle Wu, and Yuanan Liu. "Impact of Probe Configurations on Maximum of Test Volume Size in 3D MIMO OTA Testing." Wireless Communications and Mobile Computing 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/2716149.

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With the development of multiple-input-multiple-output (MIMO) technology, the over-the-air (OTA) testing of MIMO capable devices with different sizes needs to be conducted for performance evaluation. The device under test (DUT) should be within a tridimensional test volume created by multiprobe configurations. Thus, determining the maximum size of test volume could be vital to test the DUT of different size and larger test volumes should be adopted to evaluate larger DUTs. All types of probe configurations including the fixed and the flexible probe configurations are investigated in this paper to address this issue. The maximum of test volume size (MTVS) is determined within the given error threshold of spatial correlation for a given probe configuration. Simultaneously, the impact of different probe configurations on MTVS is studied in order to obtain larger MTVSs. Simulation results show that larger MTVSs can be obtained by utilizing the optimal probe configuration with any given 3D channel model for 3D MIMO OTA testing.

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12

Wang, Hsiao-Chi, Tung-Lin Liu, Yuan-Wei Wu, and Hsi-Pin Ma. "A Power-Efficient Soft-Output Detector for Spatial-Multiplexing MIMO Communications." Journal of Electrical and Computer Engineering 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/938490.

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VLSI implementation of a configurable power-efficient MIMO detector is proposed to support4×4spatial multiplexing and modulation from QPSK to 64-QAM. A novel tree search algorithm is proposed to enable the detector to provide soft outputs and to be implemented in parallel and pipelined hardware architecture. The frame error rate (FER) of the detector approaches the quasi-optimal sphere decoder, with 0.5-dB degradation. Moreover, the proposed detector can operate at the optimal voltage under different configurations and detect/recover timing error at run time by a novel adaptive voltage scaling technique with double sampling circuitry. The proposed detector, using TSMC 0.18 μm single-poly six-metal CMOS process with a core area of1.17×1.17 mm2, provides fixed throughput of 45 Mbps in 64-QAM configuration, 120 Mbps in 16-QAM configuration, and 60 Mbps in QPSK configuration. The normalized power efficiency of the design for 64-QAM and 16-QAM configurations is 1.56 Mbps/mW and 2.53 Mbps/mW, respectively. Compared with the conservative margin-based design, the proposed design achieves a 48.8% power saving.

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13

Akhtar, Jobaida, Mohammad Istiaque Reja, Md Al Amin, and Md Sahidur Rahman. "A Comprehensive Performance Analysis of MIMO-OFDM Technology Using Different MIMO Configurations and M-QAM Modulation Schemes for LTE Cellular Network." Modern Applied Science 12, no. 4 (March 30, 2018): 118. http://dx.doi.org/10.5539/mas.v12n4p118.

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MIMO-OFDM (Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing) uses multiple antennas at transmitter and receiver side to facilitate high throughput performance without needing additional bandwidth or transmission power. But frequency synchronization, Inter Carrier Interference (ICI) minimization and antenna diversity are the main challenges for MIMO-OFDM wireless technology. In this paper, a MIMO-OFDM hybrid model is designed with proper frequency synchronization and antenna diversity that minimizes ICI with improved signal strength. Using the model a comprehensive analysis in terms of Bit Error Rate (BER) performance with respect to Signal to Noise Ratio (SNR) and Bit Rate for different M-ary QAM modulation schemes and different MIMO configurations are presented over Rayleigh fading and AWGN channel. After an extensive analysis, it is found that the propose OFDM scheme shows better Bit Error rate (BER) performance for 64-QAM than any other M-ary QAM modulation schemes and the optimum MIMO configuration for this good quality performance is found to be 3×2 configuration.

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14

Sinz, Carsten, Albert Haag, Nina Narodytska, Toby Walsh, Esther Gelle, Mihaela Sabin, Ulrich Junker, et al. "Configuration." IEEE Intelligent Systems 22, no. 1 (January 2007): 78–90. http://dx.doi.org/10.1109/mis.2007.6.

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15

Olmedo, Ignacio, Marie-Aurélie Chanut, Cyril Douthe, Mathieu Verdet, Clément Galandrin, Loic Dugelas, and David Bertrand. "Étude expérimentale multi-échelle sur les écrans pare-blocs : comportement des ouvrages hors cadre ETAG27." Revue Française de Géotechnique, no. 163 (2020): 8. http://dx.doi.org/10.1051/geotech/2020018.

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Dans le cadre du projet national C2ROP, une large campagne d’essais expérimentaux a été conduite. Des essais sous sollicitations quasi-statiques et dynamiques ont été réalisés sur les composants les plus critiques des écrans pare-blocs (filets, dissipateur d’énergie) et sur un ouvrage complet selon différentes configurations. Une dizaine d’essais d’impact a été réalisée sur un écran développé spécifiquement pour étudier expérimentalement le comportement de ce type d’ouvrage. Des méthodes d’acquisition de données spécifiques ont été mises en place, et une grande quantité de données a été recueillie puis exploitée. La force d’impact utile pour le dimensionnement des composants, le phasage de la déformation de l’ouvrage (de l’impact à l’arrêt du bloc), et la cinématique des dissipateurs d’énergie ont ainsi pu être étudiés. Des configurations d’impacts inhabituelles représentatives des conditions de sollicitation de l’ouvrage dans son contexte de mise en œuvre ont été réalisées et comparées aux configurations de certification prescrites par l’ETAG27. Des coefficients ont été proposés afin de quantifier l’endommagement de l’ouvrage par rapport à la configuration de certification en fonction du type d’impact. Les résultats obtenus mettent en évidence que la configuration définie par l’ETAG27 n’est pas nécessairement la configuration la plus défavorable.

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16

Bhange, Dinesh N., and Chandrashekhar G. Dethe. "Performance of Pilot-Aided 3D- OFDM Channel Estimation using Different Antenna Configurations." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (October 1, 2017): 77. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp77-84.

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<p>This paper aims, a 3D-Pilot Aided Multi-Input Multi-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) Channel Estimation (CE) for Digital Video Broadcasting -T2 (DVB-T2)for the 5 different proposed block and comb pilot patterns model and performed on different antenna configuration. The effects of multi-transceiver antenna on channel estimation are addressed with different pilot position in frequency, time and the vertical direction of spatial domain framing. This paper first focus on designing of 5- different proposed spatial correlated pilot pattern model with optimization of pilot overhead. Then it demonstrates the performance comparison of Least Square (LS) &Linear Minimum Mean Square Error (LMMSE), two linear channel estimators for 3D-Pilot Aided patterns on different antenna configurations in terms of Bit Error Rate. The simulation results are shown for Rayleigh fading noise channel environments. Also, 3x4 MIMO configuration is recommended as the most suitable configuration in this noise channel environments.</p>

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17

Sanad, Mohamed, and Noha Hassan. "Novel Wideband MIMO Antennas That Can Cover the Whole LTE Spectrum in Handsets and Portable Computers." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/694805.

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A dual resonant antenna configuration is developed for multistandard multifunction mobile handsets and portable computers. Only two wideband resonant antennas can cover most of the LTE spectrums in portable communication equipment. The bandwidth that can be covered by each antenna exceeds 70% without using any matching or tuning circuits, with efficiencies that reach 80%. Thus, a dual configuration of them is capable of covering up to 39 LTE (4G) bands besides the existing 2G and 3G bands.2×2MIMO configurations have been also developed for the two wideband antennas with a maximum isolation and a minimum correlation coefficient between the primary and the diversity antennas.

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18

Dong, Jian, Ronghua Shi, and Ying Guo. "Minimum redundancy MIMO array synthesis with a hybrid method based on cyclic difference sets and ACO." International Journal of Microwave and Wireless Technologies 9, no. 1 (July 24, 2015): 35–43. http://dx.doi.org/10.1017/s1759078715001257.

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As a recently proposed concept, multiple-input multiple-output (MIMO) radars exhibit much higher spatial resolution than traditional transmitter based radars because of the synthesized virtual array. In this paper, the problem of minimum redundancy (MR)-MIMO array synthesis is addressed, which seeks to maximize the virtual array aperture of MIMO radars for a given number of transmitting and receiving elements. A hybrid method combining autocorrelation property of cyclic difference sets (CDSs) and global search characteristics of ant colony optimization (ACO) is proposed for a rapid and numerically-effective exploration of MR-MIMO array configurations. Numerical experiments validate the proposed method, showing improvements in convergence rate and computational cost with respect to bare ACO-based search as well as improvements in the generality and configuration variety with respect to the CDS-based method.

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Karimian, Reza, and Hamed Tadayon. "Multiband MIMO Antenna System with Parasitic Elements for WLAN and WiMAX Application." International Journal of Antennas and Propagation 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/365719.

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A new microstrip slot antenna with parasitic elements has been presented in this paper. The proposed antenna is composed of a microstrip feed line, a ground plane on which some simple slots are etched, and parasitic elements. Simulation results show that the antenna structure allows for the independent adjustment of each frequency. A two-element array configuration of this antenna for MIMO application is investigated as well. For comparison between simulation and measurement result both single and array configurations have been fabricated. The measurement result exhibits good radiation performance in terms of return loss, low mutual coupling, and compactness.

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20

Freuder, E. C. "The Role of Configuration Knowledge in the Business Process [Configuration Roundtable]." IEEE Intelligent Systems and their Applications 13, no. 4 (July 1998): 29–31. http://dx.doi.org/10.1109/mis.1998.708429.

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21

Ibrahim, Ahmed A., and Mahmoud A. Abdalla. "CRLH MIMO antenna with reversal configuration." AEU - International Journal of Electronics and Communications 70, no. 9 (September 2016): 1134–41. http://dx.doi.org/10.1016/j.aeue.2016.05.012.

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22

Qi, Fei, Xuetian Zhu, Xinran Zhang, and Songlin Sun. "Hybrid Multicast Transmission for Public Safety Network in 5G." Mobile Information Systems 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/4306356.

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We investigate the application of wireless multicast technology in public safety network (PSN) in future wireless communication system. The hybrid unicast/multicast transmission system is proposed and analyzed in 3D massive multi-input multioutput (MIMO) channel. The mutual coupling channel model is adopted under the different antenna array configuration scenarios. The proposed hybrid system adopts multicast beamforming in the multicast groups as well as multiuser-MIMO (MU-MIMO) linear precoding in the unicast group to increase system throughput. The null space method based interference cancellation is further performed between each group to eliminate signal leakage generated from each group. Comparisons between two types of antenna array configurations, different channel models, linear precoding as well as multicast beamforming, and user grouping strategies for multicast services are presented and analyzed by simulation.

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Faltings, B., and E. C. Freuder. "Configuration [Guest Editor's Introduction]." IEEE Intelligent Systems and their Applications 13, no. 4 (July 1998): 32–33. http://dx.doi.org/10.1109/mis.1998.708430.

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24

Li, Jialing, Enoch Lu, and I.-Tai Lu. "Joint MMSE Transceiver Designs and Performance Benchmark for CoMP Transmission and Reception." ISRN Communications and Networking 2012 (June 13, 2012): 1–21. http://dx.doi.org/10.5402/2012/682090.

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Coordinated Multipoint (CoMP) transmission and reception has been suggested as a key enabling technology of future cellular systems. To understand different CoMP configurations and to facilitate the configuration selection (and thus determine channel state information (CSI) feedback and data sharing requirements), performance benchmarks are needed to show what performance gains are possible. A unified approach is also needed to enable the cluster of cooperating cells to systematically take care of the transceiver design. To address these needs, the generalized iterative approach (GIA) is proposed as a unified approach for the minimum mean square error (MMSE) transceiver design of general multiple-transmitter multiple-receiver multiple-input-multiple-output (MIMO) systems subject to general linear power constraints. Moreover, the optimum decoder covariance optimization approach is proposed for downlink systems. Their optimality and relationships are established and shown numerically. Five CoMP configurations (Joint Processing-Equivalent Uplink, Joint Processing-Equivalent Downlink, Joint Processing-Equivalent Single User, Noncoordinated Multipoint, and Coordinated Beamforming) are studied and compared numerically. Physical insights, performance benchmarks, and some guidelines for CoMP configuration selection are presented.

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Lee, Su-Won, Jae-Du Lee, and Hai-Young Lee. "2.6 GHz-Band MIMO Omni Antenna Having Folded Configuration." Journal of Korean Institute of Electromagnetic Engineering and Science 26, no. 2 (February 27, 2015): 127–34. http://dx.doi.org/10.5515/kjkiees.2015.26.2.127.

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Alamayreh, Ahmad, Nidal Qasem, and Jamal S. Rahhal. "General configuration MIMO system with arbitrary OAM." Electromagnetics 40, no. 5 (June 17, 2020): 343–53. http://dx.doi.org/10.1080/02726343.2020.1780378.

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27

Du, J., and Y. Li. "Optimization of Antenna Configuration for MIMO Systems." IEEE Transactions on Communications 53, no. 9 (September 2005): 1451–54. http://dx.doi.org/10.1109/tcomm.2005.855002.

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Mansour, Ibrahim, Jamal S. Rahhal, and Hasan Farahneh. "Two Slot MIMO Configuration for Cooperative Sensor Network." International Journal of Communications, Network and System Sciences 03, no. 09 (2010): 750–54. http://dx.doi.org/10.4236/ijcns.2010.39100.

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Correll, Bill. "Efficient Spotlight SAR MIMO Linear Collection Configurations." IEEE Journal of Selected Topics in Signal Processing 4, no. 1 (February 2010): 33–39. http://dx.doi.org/10.1109/jstsp.2009.2038960.

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30

Riché, Vishal, Stéphane Méric, and Éric Pottier. "Study of receiver design in a MIMO SAR configuration." International Journal of Microwave and Wireless Technologies 4, no. 3 (May 16, 2012): 335–39. http://dx.doi.org/10.1017/s175907871200044x.

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In this paper, we are concerned on the receiver design and the different imaging possibilities for radar multiple input multiple output (MIMO) synthetic aperture radar (SAR). The transmission of pseudo-orthogonal waveforms gives many opportunities in reception on how to manage these different signals. We proposed to compare different resolutions and robustness for SAR measurements: single input single output (SISO) and MIMO. Moreover, we developed different SAR processings based on MIMO configuration by using the Stolt interpolation on simulations. On real data, these SAR processing will be adapted for the backprojection processing.

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Karasawa., Yoshio, Yannes Gunawan, Sahrul Pasisingi, Katsuhiro Nakada, and Akira Kosako. "Development of a MIMO-OTA System with Simplified Configuration." Journal of electromagnetic engineering and science 12, no. 1 (March 31, 2012): 77–84. http://dx.doi.org/10.5515/jkiees.2012.12.1.77.

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Tang, Jun, Yong Wu, YingNing Peng, and XiuTan Wang. "On detection performance and system configuration of MIMO radar." Science in China Series F: Information Sciences 52, no. 7 (July 2009): 1250–57. http://dx.doi.org/10.1007/s11432-009-0046-4.

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Saad, A., M. Ismail, and N. Misran. "Capacity of MIMO Channels at Different Antenna Configurations." Journal of Applied Sciences 8, no. 24 (December 1, 2008): 4595–602. http://dx.doi.org/10.3923/jas.2008.4595.4602.

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Fan, Yijia, and John Thompson. "MIMO Configurations for Relay Channels: Theory and Practice." IEEE Transactions on Wireless Communications 6, no. 5 (May 2007): 1774–86. http://dx.doi.org/10.1109/twc.2007.360379.

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35

Sehrai, Daniyal Ali, Muhammad Asif, Nosherwan Shoaib, Muhammad Ibrar, Saeedullah Jan, Mohammad Alibakhshikenari, Ali Lalbakhsh, and Ernesto Limiti. "Compact Quad-Element High-Isolation Wideband MIMO Antenna for mm-Wave Applications." Electronics 10, no. 11 (May 29, 2021): 1300. http://dx.doi.org/10.3390/electronics10111300.

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This paper presents a multiple-input multiple-output (MIMO) antenna system for millimeter-wave 5G wireless communication services. The proposed MIMO configuration is composed of four antenna elements, where each antenna possesses an HP-shaped configuration that features simple configuration and excellent performance. The proposed MIMO design can operate at a very wideband of 36.83–40.0 GHz (measured). Furthermore, the proposed MIMO antenna attains a peak gain of 6.5 dB with a maximum element-isolation of −45 dB. Apart from this, the MIMO performance metrics such as envelope correlation coefficient (ECC), diversity gain, and channel capacity (CCL) are analyzed, which demonstrate good characteristics across the operating band. The proposed antenna radiates efficiently with a radiation efficiency of above 80% at the desired frequency band which makes it a potential contender for the upcoming communication applications. The proposed design simulations were performed in the computer simulation technology (CST) software, and measured results reveal good agreement with the simulated one.

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DUFRESNE, M., M. FRELAT, S. ISEL, A. MANJARRES, N. ODINOT, G. PEREIRA GUIBU, N. SCHAER, J. VAZQUEZ, and J. WERTEL. "Métrologie des rejets des trop-pleins de poste : généralisation et limite de la méthode Coachs." Techniques Sciences Méthodes, no. 6 (June 22, 2020): 45–57. http://dx.doi.org/10.36904/tsm/202006045.

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Un des objectifs de ce travail est l’autosurveillance des déversements d’un réseau d’assainissement vers le milieu naturel via la configuration spécifique des trop-pleins. La méthode décrite dans le guide n° 3 Coachs est aujourd’hui régulièrement mise en oeuvre pour ce type d’ouvrage. Le présent article présente neuf configurations qui ont été étalonnées par modélisation numérique 3D, car elles sortent de sa gamme d’application. Les lois hauteur-débit obtenues sont comparées à Coachs. Cette démarche montre que la gamme des diamètres peut être étendue aux Ø100 et Ø800, les débords et les obstacles ont peu d’impact. En revanche, une canalisation non perpendiculaire à la paroi de la chambre a un impact significatif sur la loi h/Q du fait de la déformation de la section mouillée et des lignes de courants à l’engouffrement.

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Rizki, Abdurrahman, Alloysius Adya Pramudita, and Trasma Yunita. "PENGARUH PENYUSUNAN POLARISASI PADA SISTEM ANTENA MIMO TERHADAP KAPASITAS KANAL." TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika 5, no. 1 (September 14, 2020): 13. http://dx.doi.org/10.25124/tektrika.v5i1.3240.

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Multiple Input Multiple Output (MIMO) system is a technology that has the potential to be developed to increase channel capacity. The increase in channel capacity in the MIMO system is not only determined by the number of antennas, but is determined by the characteristics and arrangement of the antenna concept. This study identifies the effect of circular polarization on the MIMO antenna system on channel capacity. Co-polarization consists of a Left Hand Circular Polarization (LHCP) and Right Hand Circular Polarization (RHCP) configuration, while cross-polarization consists of an RHCP-LHCP configuration. The co-polarization of the antenna with the LHCP configuration results in an estimated channel capacity of 11,578 bps / Hz when it is at the lowest Signal to Noise Ratio (SNR) is 5 dB

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38

Li, Yachao, Ziqiang Meng, Shengqi Zhu, Yinghui Quan, Mengdao Xing, and Zheng Bao. "Property Analysis of MIMO-Based Missile-Borne Forward-Looking SAR." International Journal of Antennas and Propagation 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/578792.

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As a special multiple-input multiple-output (MIMO) radar networking mode, missile-borne forward-looking synthetic aperture radar (MFL-SAR) has many potential applications. This paper describes and analyzes properties of this new configuration. Range history and Doppler history are analyzed and derived using the designed geometric configuration. Then the expressions of range and Doppler resolution are determined based on the validity of two-dimensional (2D) resolution imaging capability. To help to design the proper system and motion parameters of this configuration, key parameters affecting the imaging ability are found out. Due to high velocities and accelerations of both transmitter and receiver, high-order terms in the slant range equation should be kept to reduce the approximation error. The range resolution and Doppler resolution of MFL-SAR are both space-variant and time-variant owing to the complexity of this configuration. The tiny changes of 2D resolution during the synthetic aperture time should be considered when designing the imaging algorithm of MFL-SAR.

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Lazaropoulos, Athanasios G. "Broadband over Power Lines Systems Convergence: Multiple-Input Multiple-Output Communications Analysis of Overhead and Underground Low-Voltage and Medium-Voltage BPL Networks." ISRN Power Engineering 2013 (September 15, 2013): 1–30. http://dx.doi.org/10.1155/2013/517940.

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This review paper reveals the broadband potential of overhead and underground low-voltage (LV) and medium-voltage (MV) broadband over power lines (BPL) networks associated with multiple-input multiple-output (MIMO) technology. The contribution of this review paper is fourfold. First, the unified value decomposition (UVD) modal analysis is introduced. UVD modal analysis is a new technique that unifies eigenvalue decomposition (EVD) and singular value decomposition (SVD) modal analyses achieving the common handling of traditional SISO/BPL and upcoming MIMO/BPL systems. The validity of UVD modal analysis is examined by comparing its simulation results with those of other exact analytical models. Second, based on the proposed UVD modal analysis, the MIMO channels of overhead and underground LV and MV BPL networks (distribution BPL networks) are investigated with regard to their inherent characteristics. Towards that direction, an extended collection of well-validated metrics from the communications literature, such as channel attenuation, average channel gain (ACG), root-mean-square delay spread (RMS-DS), coherence bandwidth (CB), cumulative capacity, capacity complementary cumulative distribution function (CCDF), and capacity gain (GC), is first applied in overhead and underground MIMO/LV and MIMO/MV BPL channels and systems. It is found that the results of the aforementioned metrics portfolio depend drastically on the frequency, the power grid type (either overhead or underground, either LV or MV), the MIMO scheme configuration properties, the MTL configuration, the physical properties of the cables used, the end-to-end distance, and the number, the electrical length, and the terminations of the branches encountered along the end-to-end BPL signal propagation. Third, three interesting findings concerning the statistical properties of MIMO channels of distribution BPL networks are demonstrated, namely, (i) the ACG, RMS-DS, and cumulative capacity lognormal distributions; (ii) the correlation between RMS-DS and ACG; and (iii) the correlation between RMS-DS and CB. By fitting the numerical results, unified regression distributions appropriate for MIMO/BPL channels and systems are proposed. These three fundamental properties can play significant role in the evaluation of recently proposed statistical channel models for various BPL systems. Fourth, the potential of transformation of overhead and underground LV/BPL and MV/BPL distribution grids to an alternative solution to fiber-to-the-building (FTTB) technology is first revealed. By examining the capacity characteristics of various MIMO scheme configurations and by comparing these capacity results against SISO ones, a new promising urban backbone network seems to be born in a smart grid (SG) environment.

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Shah, Zawar, and Ashutosh Kolhe. "Throughput Analysis of IEEE 802.11ac and IEEE 802.11n in a Residential Home Environment." International Journal of Interdisciplinary Telecommunications and Networking 9, no. 1 (January 2017): 1–13. http://dx.doi.org/10.4018/ijitn.2017010101.

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IEEE 802.11ac is the latest WiFi standard that operates in 5GHz frequency band and promises high data rate than IEEE 802.11n. In this paper, the authors carry out experiments using commercial off-the-shelf equipment in a typical home environment and quantify the gain provided by IEEE 802.11ac compared to IEEE 802.11n. Their experimental results obtained in a typical home environment show that in 5GHz frequency band with a 2x2 MIMO configuration, IEEE 802.11ac provides much higher throughput than IEEE 802.11n. IEEE 802.11ac provides an average throughput gain of 94% and 91% at a distance of 3.6m and 8.5m from the wireless router, respectively. The authors further investigate the gain in average throughput that is provided by IEEE 802.11ac when the transmit antenna diversity on the wireless router is increased from two to three. They note that IEEE 802.11ac with a 3x2 MIMO configuration helps to combat multipath fading effect present in residential home environment and provides higher average throughput than 2x2 MIMO e.g. at a distance of 11m from the wireless router, 3x2 MIMO configuration provides a gain of 15.13% than the 2x2 MIMO configuration. The authors conclude based on their results (obtained via experiments in a typical home environment) that although IEEE 802.11ac wireless routers are more expensive than IEEE 802.11n wireless routers however, high throughput provided by IEEE 802.11ac justifies the high cost associated with its routers.

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Uthansakul, Peerapong, and Arfat Ahmad Khan. "Enhancing the Energy Efficiency of mmWave Massive MIMO by Modifying the RF Circuit Configuration." Energies 12, no. 22 (November 15, 2019): 4356. http://dx.doi.org/10.3390/en12224356.

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Hybrid architectures are used in the Millimeter wave (mmWave) Massive MIMO systems, which use a smaller number of RF chains and reduces the power and energy consumption of the mmWave Massive MIMO systems. However, the majority of the hybrid architectures employs the conventional circuit configuration by connecting each of the RF chains with all the transmitting antennas at the base station. As a result, the conventional circuit configuration requires a large number of phase shifters, combiners, and low-end amplifiers. In this paper, we modify the RF circuit configuration by connecting each of the RF chains with some of the transmitting antennas of mmWave Massive MIMO. Furthermore, the hybrid analogue/digital precoders and decoders along with the overall circuit power consumptions are modelled for the modified RF circuit configuration. In addition, we propose the alternating optimization algorithm to enhance the optimal energy efficiency and compute the optimal system parameters of the mmWave Massive MIMO system. The proposed framework provides deeper insights of the optimal system parameters in terms of throughput, consumed power and the corresponding energy efficiency. Finally, the simulation results validate the proposed framework, where it can be seen that the proposed algorithm significantly reduces the power and energy consumptions, with a little compromise on the system spectral gain.

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Votis, Constantinos, George Tatsis, and Panos Kostarakis. "Envelope Correlation Parameter Measurements in a MIMO Antenna Array Configuration." International Journal of Communications, Network and System Sciences 03, no. 04 (2010): 350–54. http://dx.doi.org/10.4236/ijcns.2010.34044.

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Pal, Paramvir Kaur, and Robert Simon Sherratt. "MIMO Channel Capacity and Configuration Selection for Switched Parasitic Antennas." ETRI Journal 40, no. 2 (April 2018): 197–206. http://dx.doi.org/10.4218/etrij.2017-0071.

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44

Alvarez-Ramirez, Jose, and Rosendo Monroy-Loperena. "A PI Control Configuration for a Class of MIMO Processes." Industrial & Engineering Chemistry Research 40, no. 4 (February 2001): 1186–99. http://dx.doi.org/10.1021/ie9905308.

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45

Zhou, Xiangyun, Parastoo Sadeghi, Tharaka A. Lamahewa, and Salman Durrani. "Optimizing antenna configuration for MIMO systems with imperfect channel estimation." IEEE Transactions on Wireless Communications 8, no. 3 (March 2009): 1177–81. http://dx.doi.org/10.1109/twc.2009.080599.

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Sani, Mohammad Muzammil, Rakesh Chowdhury, and Raghvendra Kumar Chaudhary. "An Ultra-Wideband Rectangular Dielectric Resonator Antenna With MIMO Configuration." IEEE Access 8 (2020): 139658–69. http://dx.doi.org/10.1109/access.2020.3012793.

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47

Jouade, Antoine, Olivier Lafond, Laurent Ferro-Famil, Mohamed Himdi, and Stephane Meric. "Passive Compressive Device in an MIMO Configuration at Millimeter Waves." IEEE Transactions on Antennas and Propagation 66, no. 10 (October 2018): 5558–68. http://dx.doi.org/10.1109/tap.2018.2862365.

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48

Suvikunnas, P., J. Salo, L. Vuokko, J. Kivinen, K. Sulonen, and P. Vainikainen. "Comparison of MIMO Antenna Configurations: Methods and Experimental Results." IEEE Transactions on Vehicular Technology 57, no. 2 (March 2008): 1021–31. http://dx.doi.org/10.1109/tvt.2007.905347.

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Nguyen, Hoang, Johnson I. Agbinya, and John Devlin. "Channel Characterisation and Link Budget of MIMO Configuration in Near Field Magnetic Communication." International Journal of Electronics and Telecommunications 59, no. 3 (September 1, 2013): 255–62. http://dx.doi.org/10.2478/eletel-2013-0030.

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Abstract Traditional radio communication has gained significantly from using multiple input and multiple output (MIMO) architecture in the system. Many wireless applications, such as wireless LAN and cellular network, have adopted this technology to improve their system performance. However, the effect of MIMO systems has not been investigated in the case of inductive near field short range communications. The purpose of this paper is to explore a new method for increasing the magnetic communication range using MIMO. Three system models includingMISO, SIMO and MIMO are proposed to characterize the number of transmitters and receivers to the link. These models have helped to extend not only the range but also the communication channel in NFMIC.

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50

Mun, Byeonggwi, Frances J. Harackiewicz, Byeongkwan Kim, Hyunho Wi, Jonghyun Lee, Myun-Joo Park, Changwon Jung, and Byungje Lee. "New Configuration of Handset MIMO Antenna for LTE 700 Band Applications." International Journal of Antennas and Propagation 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/850489.

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A compact handset multiple-input multiple-output (MIMO) antenna for long-term evolution (LTE) 700 band (746~787 MHz) applications is proposed. The proposed antenna consists of two symmetrical PIFAs. Without the usage of any additional coupling elements between closely mounted antennas, a high isolation (>15 dB) and a low enveloped correlation coefficient (ECC<0.35) are achieved by the optimum location and arrangement of MIMO antenna elements.

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