| Presentation | 2014-10-17 Interference Alignment with Limited Feedback for Macrocell-Femtocell Two-Tier Heterogeneous Networks Mohamed Rihan, Maha Elsabrouty, Osamu Mutat, Hiroshi Furukawa, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Interference Alignment (IA) emerged on the communication scene as a solution to the interference problem in all interference-limited networks, including heterogeneous cellular systems. However, the performance of IA is greatly related to the accuracy of the channel state information at transmitters (CSIT) (namely the number of feedback bits). Thus, in order to improve the performance of IA, it makes sense to analyze the number of feedback bits with respect to the sum rate loss. Motivated by that, this paper studies a limited feedback-based IA scheme suitable for two tier macrocell-femtocell heterogeneous networks. First, a simulation based evaluation of the sum-rate loss due to the implementation of limited feedback IA in heterogeneous networks is obtained. Then, an analytical expression for the upper bound on the total sum rate loss due to limited feedback is derived. Finally, the closed-form expression is followed with some investigations about limited-feedback IA implementation in heterogeneous networks. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Interference Alignment / Femtocell (IA) / Macrocell / Limited Feedback / Loss rate / Heterogeneous Networks (HetNets) |
| Paper # | RCS2014-178 |
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| Committee | RCS |
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| Conference Date | 2014/10/9(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Interference Alignment with Limited Feedback for Macrocell-Femtocell Two-Tier Heterogeneous Networks |
| Sub Title (in English) | |
| Keyword(1) | Interference Alignment |
| Keyword(2) | Femtocell (IA) |
| Keyword(3) | Macrocell |
| Keyword(4) | Limited Feedback |
| Keyword(5) | Loss rate |
| Keyword(6) | Heterogeneous Networks (HetNets) |
| 1st Author's Name | Mohamed Rihan |
| 1st Author's Affiliation | Kyushu University:Egypt-Japan University of Science & Technology() |
| 2nd Author's Name | Maha Elsabrouty |
| 2nd Author's Affiliation | Egypt-Japan University of Science & Technology |
| 3rd Author's Name | Osamu Mutat |
| 3rd Author's Affiliation | Kyushu University |
| 4th Author's Name | Hiroshi Furukawa |
| 4th Author's Affiliation | Kyushu University |
| Date | 2014-10-17 |
| Paper # | RCS2014-178 |
| Volume (vol) | vol.114 |
| Number (no) | 254 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |