| Presentation | 2009-11-26 User Selection Scheme with Secrecy Capacity Between Other Users in MIMO Downlink Systems Masatoshi YANASE, Tomoaki OHTSUKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For multiuser Multiple-Input-Multiple-Output (MIMO) downlink systems where some receivers exist, several user selection schemes have been recently proposed. However, these user selection schemes do not take security into consideration. One possible scenario of wireless communication systems is that a transmitter wants to transmit confidential messages only to those legitimate users securely. In this report, we propose a user selection scheme with secrecy capacity for multiuser MIMO downlink system. The security level of each user is measured by the secrecy capacity of its corresponding downlink channel. In the proposed scheme, the transmitter selects a user set so that their secrecy capacities are larger than zero. Thus, the transmitter can send confidential messages to those legitimate users securely. The proposed scheme can be applied to conventional scheduling schemes, such as maximum capacity (MAX) scheduling and proportional fairness (PF) scheduling. Simulation results show that the proposed scheme improves system secrecy capacity performance and has little degradation of system capacity performance when applied to the PF scheduling schemes. Hence, we show that the proposed scheme is an effective user selection scheme to guarantee secrecy of communication. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multiuser MIMO / User selection / Secrecy capacity |
| Paper # | RCS2009-133 |
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| Committee | RCS |
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| Conference Date | 2009/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | User Selection Scheme with Secrecy Capacity Between Other Users in MIMO Downlink Systems |
| Sub Title (in English) | |
| Keyword(1) | Multiuser MIMO |
| Keyword(2) | User selection |
| Keyword(3) | Secrecy capacity |
| 1st Author's Name | Masatoshi YANASE |
| 1st Author's Affiliation | Graduate School of Science and Technology, Keio University() |
| 2nd Author's Name | Tomoaki OHTSUKI |
| 2nd Author's Affiliation | Department of Computer and Information Science, Keio University |
| Date | 2009-11-26 |
| Paper # | RCS2009-133 |
| Volume (vol) | vol.109 |
| Number (no) | 305 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |