| Paper Abstract and Keywords |
| Presentation |
2016-02-19 09:25
Development of Complexity-reduced 4x4 MIMO-MLD Demodulator with Block QR Decomposition
Fumito Ito, Takayuki Nakagawa, Hiroyuki Hamazumi (NHK), Kazuhiko Fukawa (Tokyo Tech) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
The authors have been researching large capacity transmission technology using 4x4 MIMO scheme to develop SHV wireless cameras. As the number of transmitting antennas increases such as a 4x4 MIMO system, the complexity of signal detection by MLD, which is the best technique to achieve low BER performance, becomes large exponentially. To solve this difficulty, we have proposed the complexity-reduced MLD using Block QR decomposition. In this report, we developed an experimental system of 4x4 MIMO-QPSK demodulator using proposed technique and evaluated the effectiveness of complexity reduction and the BER performance. From the result, we succeeded in developing the 4x4 MIMO-QPSK demodulator which reduces multiplications to 54 % and additions-subtractions to 56 % compared with conventional MLD, achieving the BER performance degraded by 1 dB from the result of computer simulation. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Wireless Camera / MIMO / MLD / Complexity Reduction / Block QR Decomposition / / / |
| Reference Info. |
ITE Tech. Rep., vol. 40, no. 4, BCT2016-29, pp. 49-52, Feb. 2016. |
| Paper # |
BCT2016-29 |
| Date of Issue |
2016-02-11 (BCT) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
BCT IEEE-BT |
| Conference Date |
2016-02-18 - 2016-02-19 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kanpo-No-Yado (Otaru) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
BCT |
| Conference Code |
2016-02-BCT-BT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Development of Complexity-reduced 4x4 MIMO-MLD Demodulator with Block QR Decomposition |
| Sub Title (in English) |
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| Keyword(1) |
Wireless Camera |
| Keyword(2) |
MIMO |
| Keyword(3) |
MLD |
| Keyword(4) |
Complexity Reduction |
| Keyword(5) |
Block QR Decomposition |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Fumito Ito |
| 1st Author's Affiliation |
Science and Technology Research Laboratories, NHK (NHK) |
| 2nd Author's Name |
Takayuki Nakagawa |
| 2nd Author's Affiliation |
Science and Technology Research Laboratories, NHK (NHK) |
| 3rd Author's Name |
Hiroyuki Hamazumi |
| 3rd Author's Affiliation |
Science and Technology Research Laboratories, NHK (NHK) |
| 4th Author's Name |
Kazuhiko Fukawa |
| 4th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
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| Speaker |
Author-1 |
| Date Time |
2016-02-19 09:25:00 |
| Presentation Time |
25 minutes |
| Registration for |
BCT |
| Paper # |
BCT2016-29 |
| Volume (vol) |
vol.40 |
| Number (no) |
no.4 |
| Page |
pp.49-52 |
| #Pages |
4 |
| Date of Issue |
2016-02-11 (BCT) |
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