| Presentation | 2012-12-14 A Study on Relaxation of Co-Channel Interference Using Cell Blanking for Uplink in Femto Cell Networks Akihiro Ogawa, Shinsuke Ibi, Seiichi Sampei, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper investigates resource allocation problems for spectrum sharing in overlay femto cell network which is constituted by randomly distributed femto base stations. In this scenario, it is subject to severe co-channel interference (CCI). Thus, aiming at maximization of sum-rate capacity, radio resource management (RRM) plays an important role in alleviating the CCI issue. An appropriate RRM is carried out by finding global optimum after formulating an optimization problem which requests information of interference levels from all femto cell. According to the number of users in the overlay networks, it requires huge burden for collections of such kind of information. This paper focuses on autonomous distributed RRM to find local optima without sacrificing costs of the notification. However, due to the distributed manner, it does not take into account inter-femto cell CCI. As a result, the global optimum and combination of local optima are not identical, resulting in different sum rate capacity. In order to shrink the gap, in terms of capacity, this paper proposes a novel mechanism with the assist of several bits notification of knowledge on mutual CCI and a cooperative cell blanking technique. Computer simulations have been conducted to verify the proposed approach. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Femto Cell / Uplink / Co-Channel Interference / Spectrum Sharing / Cell Blanking / Radio Resource Management |
| Paper # | RCS2012-215 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/12/6(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) | A Study on Relaxation of Co-Channel Interference Using Cell Blanking for Uplink in Femto Cell Networks |
| Sub Title (in English) | |
| Keyword(1) | Femto Cell |
| Keyword(2) | Uplink |
| Keyword(3) | Co-Channel Interference |
| Keyword(4) | Spectrum Sharing |
| Keyword(5) | Cell Blanking |
| Keyword(6) | Radio Resource Management |
| 1st Author's Name | Akihiro Ogawa |
| 1st Author's Affiliation | Graduate School of Engineering, Osaka University() |
| 2nd Author's Name | Shinsuke Ibi |
| 2nd Author's Affiliation | Graduate School of Engineering, Osaka University |
| 3rd Author's Name | Seiichi Sampei |
| 3rd Author's Affiliation | Graduate School of Engineering, Osaka University |
| Date | 2012-12-14 |
| Paper # | RCS2012-215 |
| Volume (vol) | vol.112 |
| Number (no) | 351 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |