| Presentation | 2010-11-12 Theoretical Study on Power Efficient MIMO Transmission and Operating Frequency Towards Green Radio Yoshitaka HARA, Noriyuki FUKUI, Hiroshi KUBO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents theoretical study on power-efficient MIMO transmission and operating frequency for green radio. It is well known that propagation loss becomes large with increase of operating frequency assuming a fixed number of antennas at both transmitter and receiver. Since the physical size of antenna element or radio frequency (RF) circuit is proportional to wavelength for operation, a larger number of antennas can be arranged within a constant size at higher frequency. In this paper, we study relationship between required transmit power and operating frequency, assuming antenna array in a constant size. Our theoretical study reveals that the transmit power required to satisfy a certain signal quality can be reduced with increase of operating frequency assuming antenna array in a constant size. This relationship leads to a new property that milliwave can realize more power-efficient wireless transmission than microwave. In order to use this property, implementation of high density antenna array or accurate transmit beamforming with a huge number of antennas will become key issues towards future green radio. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Green radio / Power efficiency / Array antennas / MIMO / Carrier frequency |
| Paper # | RCS2010-152 |
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| Committee | RCS |
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| Conference Date | 2010/11/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical Study on Power Efficient MIMO Transmission and Operating Frequency Towards Green Radio |
| Sub Title (in English) | |
| Keyword(1) | Green radio |
| Keyword(2) | Power efficiency |
| Keyword(3) | Array antennas |
| Keyword(4) | MIMO |
| Keyword(5) | Carrier frequency |
| 1st Author's Name | Yoshitaka HARA |
| 1st Author's Affiliation | Mitsubishi Electric Corporation() |
| 2nd Author's Name | Noriyuki FUKUI |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation |
| 3rd Author's Name | Hiroshi KUBO |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation |
| Date | 2010-11-12 |
| Paper # | RCS2010-152 |
| Volume (vol) | vol.110 |
| Number (no) | 268 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |