| Presentation | 2009-03-10 A Study on Joint Optimization of Power Allocation and Subcarrier Mapping Method for Dual-hop Non-regenerative OFDM Relay Systems Masato SAITO, Chandra R.N. ATHAUDAGE, Jamie EVANS, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this study, an achievable rate of dual-hop non-regenerative OFDM (Orthogonal Frequency Division Multiplexing) relay systems with subcarrier mapping and power allocation to both source and relay nodes is evaluated. We prove the optimality of rank ordered subcarrier mapping according to the product of channel gain and allocated power and evaluate the improvement of achievable rate by the mapping function for several power allocation methods. We numerically confirm that the combined method of rank ordered subcarrier mapping based on channel gain and sub-optimal power allocation which satisfies KKT (Karush-Kuhn-Tucker) conditions is very close to the jointly optimized method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / Non-regenerative relay / Optimal power allocation / Subcarrier mapping / Water-filling theorem |
| Paper # | IT2008-119,ISEC2008-177,WBS2008-132 |
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| Conference Information | |
| Committee | WBS |
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| Conference Date | 2009/3/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Wideband System(WBS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Joint Optimization of Power Allocation and Subcarrier Mapping Method for Dual-hop Non-regenerative OFDM Relay Systems |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | Non-regenerative relay |
| Keyword(3) | Optimal power allocation |
| Keyword(4) | Subcarrier mapping |
| Keyword(5) | Water-filling theorem |
| 1st Author's Name | Masato SAITO |
| 1st Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology (NAIST)() |
| 2nd Author's Name | Chandra R.N. ATHAUDAGE |
| 2nd Author's Affiliation | ARC Special Research Centre for Ultra-Broadband Information Networks (CUBIN), Department of Electrical and Electronic Engineering, The University of Melbourne |
| 3rd Author's Name | Jamie EVANS |
| 3rd Author's Affiliation | ARC Special Research Centre for Ultra-Broadband Information Networks (CUBIN), Department of Electrical and Electronic Engineering, The University of Melbourne |
| Date | 2009-03-10 |
| Paper # | IT2008-119,ISEC2008-177,WBS2008-132 |
| Volume (vol) | vol.108 |
| Number (no) | 474 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |