| Presentation | 2014-06-17 Total Transmit Power Minimization under Per-Antenna Power Constraint for MIMO-SVD Shinya KUMAGAI, Koichi ADACHI, Sumei SUN, Fumiyuki ADACHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper considers a total transmit power minimization problem under per-antenna power constraint and sum-rate requirement for multiple-input multiple-output (MIMO) transmission. The singular-value decomposition (SVD) creates multiple orthogonal spatial streams. Then, transmit power is allocated to each stream in order to satisfy the sum-rate requirement. We formulate the optimization problem and solve it by Lagrangian dual decomposition which requires an iterative update of Lagrangian multipliers. To avoid such an iterative update, we find a closed-form optimal solution by observing a feasible region. We show by numerical analysis that the closed-form solution gives the same performance as that of the iterative algorithm and that the total transmit power is minimized while the sum-rate requirement is satisfied. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / power minimization / per-antenna power constraint / rate requirement |
| Paper # | RCS2014-54 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2014/6/10(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) | Total Transmit Power Minimization under Per-Antenna Power Constraint for MIMO-SVD |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | power minimization |
| Keyword(3) | per-antenna power constraint |
| Keyword(4) | rate requirement |
| 1st Author's Name | Shinya KUMAGAI |
| 1st Author's Affiliation | Dept. of Communications Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Koichi ADACHI |
| 2nd Author's Affiliation | Institutefor Infocomm Research |
| 3rd Author's Name | Sumei SUN |
| 3rd Author's Affiliation | Institutefor Infocomm Research |
| 4th Author's Name | Fumiyuki ADACHI |
| 4th Author's Affiliation | Dept. of Communications Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2014-06-17 |
| Paper # | RCS2014-54 |
| Volume (vol) | vol.114 |
| Number (no) | 86 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |