| Presentation | 2013-02-01 A Multi-User Wireless Relaying Scheme based on Discrete Hierarchical Modulation Hirofumi YAMAURA, Megumi KANEKO, Kazunori HAYASHI, Hideaki SAKAI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We first consider the downlink of a two-user relay system with one BS and one RS. For this scenario, we propose a two-user Superposition Coding (SC) based relaying scheme using discrete Adaptive Modulation In the proposed method, the messages of the two users are superposed into three layers through Hierarchical Modulation at the BS We optimize the power allocation of the three SC layers to maximize the sum rate by analysis The simulation results show that the proposed scheme improves the sum rate compared to reference schemes Next, we integrate the scheme to a scheduling algorithm for a multi-user cellular system, and show that the proposed scheduler with simultaneous user allocation improves the sum rate and fairness compared to a conventional scheduler based on orthogonal user allocation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multi-user / wireless relaying / superposition coding / hierarchical modulation |
| Paper # | SIP2012-117,RCS2012-274 |
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| Conference Information | |
| Committee | SIP |
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| Conference Date | 2013/1/24(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Signal Processing (SIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Multi-User Wireless Relaying Scheme based on Discrete Hierarchical Modulation |
| Sub Title (in English) | |
| Keyword(1) | multi-user |
| Keyword(2) | wireless relaying |
| Keyword(3) | superposition coding |
| Keyword(4) | hierarchical modulation |
| 1st Author's Name | Hirofumi YAMAURA |
| 1st Author's Affiliation | Graduate School of Engineering, Kyoto University() |
| 2nd Author's Name | Megumi KANEKO |
| 2nd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 3rd Author's Name | Kazunori HAYASHI |
| 3rd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 4th Author's Name | Hideaki SAKAI |
| 4th Author's Affiliation | Graduate School of Engineering, Kyoto University |
| Date | 2013-02-01 |
| Paper # | SIP2012-117,RCS2012-274 |
| Volume (vol) | vol.112 |
| Number (no) | 423 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |