Presentation | 2012-01-27 Interference Suppression Method for Spectrum Sharing in MIMO System Keiko ASAUMI, Kenta UMEBAYASHI, Yasuo SUZUKI, |
---|---|
PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | In recent years, the scarcity of vacant spectrum bands has significantly impeded growth in demand for a usable spectrum for new wireless services. On the other hand, the spectrum assigned to licensed system (so called primary user: PU) has not been used efficiently. To overcome this problem, dynamic spectrum sharing has been paid much attention. In this paper, we focus on a multiple input multiple output(MIMO) based space domain spectrum sharing technique in secondary user (SU). The purpose of this technique is to maximization of SU throughput with a constrain of harmful interference at PU. In a related work which also proposed MIMO based spectrum sharing techniques, D-SVD where a singular value decomposition based transmitting weight is used and P-SVD where a transmitting weight is determined to provide a orthogonality in channel toward PU, and Hybrid D-SVD/P-SVD where better one is selected from D-SVD and P-SVD. In our proposed method, a parameter indicating a degree of orthogonality in terms of channel toward PU is used to determine a transmitting weight in SU. Use of this parameter can increase a degree of freedoms in power allocation and it leads to enhancement of SU channel capacity. We verify the effectiveness of the proposed method by computer simulation simulations. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | harmful interference / spatial spectrum sharing / MIMO / channel capacity / dynamic resource allocation |
Paper # | SR2011-89 |
Date of Issue |
Conference Information | |
Committee | SR |
---|---|
Conference Date | 2012/1/19(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | |
Vice Chair | |
Secretary | |
Assistant |
Paper Information | |
Registration To | Software Radio(SR) |
---|---|
Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Interference Suppression Method for Spectrum Sharing in MIMO System |
Sub Title (in English) | |
Keyword(1) | harmful interference |
Keyword(2) | spatial spectrum sharing |
Keyword(3) | MIMO |
Keyword(4) | channel capacity |
Keyword(5) | dynamic resource allocation |
1st Author's Name | Keiko ASAUMI |
1st Author's Affiliation | Tokyo University of Agriculture and Technology() |
2nd Author's Name | Kenta UMEBAYASHI |
2nd Author's Affiliation | Tokyo University of Agriculture and Technology |
3rd Author's Name | Yasuo SUZUKI |
3rd Author's Affiliation | Tokyo University of Agriculture and Technology |
Date | 2012-01-27 |
Paper # | SR2011-89 |
Volume (vol) | vol.111 |
Number (no) | 417 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |