Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System
The transmission performance for a downlink mobile WiMAX system with multiuser multiple-input multiple-output (MU-MIMO) systems in a computer simulation and field experiment is described. In computer simulation, a MU-MIMO transmission system can be realized by using the block diagonalization (BD) al...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/481676 |
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| author | Kazuhiro Yamaguchi Takaharu Nagahashi Takuya Akiyama Hideaki Matsue Kunio Uekado Takakazu Namera Hiroshi Fukui Satoshi Nanamatsu |
| author_facet | Kazuhiro Yamaguchi Takaharu Nagahashi Takuya Akiyama Hideaki Matsue Kunio Uekado Takakazu Namera Hiroshi Fukui Satoshi Nanamatsu |
| author_sort | Kazuhiro Yamaguchi |
| collection | DOAJ |
| description | The transmission performance for a downlink mobile WiMAX system with multiuser multiple-input multiple-output (MU-MIMO) systems in a computer simulation and field experiment is described. In computer simulation, a MU-MIMO transmission system can be realized by using the block diagonalization (BD) algorithm, and each user can receive signals without any signal interference from other users. The bit error rate (BER) performance and channel capacity in accordance with modulation schemes and the number of streams were simulated in a spatially correlated multipath fading environment. Furthermore, we propose a method for evaluating the transmission performance for this downlink mobile WiMAX system in this environment by using the computer simulation. In the field experiment, the received power and downlink throughput in the UDP layer were measured on an experimental mobile WiMAX system developed in Azumino City in Japan. In comparison with the simulated and experimented results, the measured maximum throughput performance in the downlink had almost the same performance as the simulated throughput. It was confirmed that the experimental mobile WiMAX system for MU-MIMO transmission successfully increased the total channel capacity of the system. |
| format | Article |
| id | doaj-art-f2bee00e8b874d9287f8750fcf03c613 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f2bee00e8b874d9287f8750fcf03c6132025-02-03T01:31:37ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/481676481676Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX SystemKazuhiro Yamaguchi0Takaharu Nagahashi1Takuya Akiyama2Hideaki Matsue3Kunio Uekado4Takakazu Namera5Hiroshi Fukui6Satoshi Nanamatsu7Department of Computer and Media Engineering, Tokyo University of Science, Suwa 5000-1, Toyohira, Chino-shi, Nagano 391-0292, JapanDepartment of Computer and Media Engineering, Tokyo University of Science, Suwa 5000-1, Toyohira, Chino-shi, Nagano 391-0292, JapanDepartment of Computer and Media Engineering, Tokyo University of Science, Suwa 5000-1, Toyohira, Chino-shi, Nagano 391-0292, JapanDepartment of Computer and Media Engineering, Tokyo University of Science, Suwa 5000-1, Toyohira, Chino-shi, Nagano 391-0292, JapanAzumino City, Nagano, JapanMIRAIT Technologies Corporation, JapanMIRAIT Technologies Corporation, JapanNPO CCC21L, JapanThe transmission performance for a downlink mobile WiMAX system with multiuser multiple-input multiple-output (MU-MIMO) systems in a computer simulation and field experiment is described. In computer simulation, a MU-MIMO transmission system can be realized by using the block diagonalization (BD) algorithm, and each user can receive signals without any signal interference from other users. The bit error rate (BER) performance and channel capacity in accordance with modulation schemes and the number of streams were simulated in a spatially correlated multipath fading environment. Furthermore, we propose a method for evaluating the transmission performance for this downlink mobile WiMAX system in this environment by using the computer simulation. In the field experiment, the received power and downlink throughput in the UDP layer were measured on an experimental mobile WiMAX system developed in Azumino City in Japan. In comparison with the simulated and experimented results, the measured maximum throughput performance in the downlink had almost the same performance as the simulated throughput. It was confirmed that the experimental mobile WiMAX system for MU-MIMO transmission successfully increased the total channel capacity of the system.http://dx.doi.org/10.1155/2015/481676 |
| spellingShingle | Kazuhiro Yamaguchi Takaharu Nagahashi Takuya Akiyama Hideaki Matsue Kunio Uekado Takakazu Namera Hiroshi Fukui Satoshi Nanamatsu Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System The Scientific World Journal |
| title | Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System |
| title_full | Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System |
| title_fullStr | Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System |
| title_full_unstemmed | Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System |
| title_short | Computer Simulation and Field Experiment for Downlink Multiuser MIMO in Mobile WiMAX System |
| title_sort | computer simulation and field experiment for downlink multiuser mimo in mobile wimax system |
| url | http://dx.doi.org/10.1155/2015/481676 |
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