| Presentation | 2022-01-20 Design of Coded Caching for Multi-User MISO Channels with Heterogeneous Cache Sizes Ayaka Urabe, Koji Ishibashi, MohammadJavad Salehi, Antti Tolli, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper focuses on coded caching when every user has a different memory size for caching and studies the design over multiple-input single-output (MISO) wireless channels. Specifically, we consider a network composed of a base station with multiple antennas and multiple users with a single antenna and design beamforming, applying the conventional coded caching to the network. We quantitatively show that the conventional coded caching is not optimal in terms of transmission rate when the spatial degree-of-freedom (DoF) is exploited and further propose a new optimization to design the caching phase. Numerical results confirm the improvement of our proposed caching. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | coded caching / beamforming / cache size optimization / MISO channels / heterogeneous network |
| Paper # | IT2021-38,SIP2021-46,RCS2021-206 |
| Date of Issue | 2022-01-13 (IT, SIP, RCS) |
| Conference Information | |
| Committee | RCS / SIP / IT |
|---|---|
| Conference Date | 2022/1/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Yukihiro Bandou(NTT) / Tadashi Wadayama(Nagoya Inst. of Tech.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Toshihisa Tanaka(Tokyo Univ. Agri.&Tech.) / Takayuki Nakachi(Ryukyu Univ.) / Tetsuya Kojima(Tokyo Kosen) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Xiaomi) / Toshihisa Tanaka(Takushoku Univ.) / Takayuki Nakachi(Tokyo Univ. Agri.&Tech.) / Tetsuya Kojima(Saitamai Univ.) |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Taichi Yoshida(UEC) / Seisuke Kyochi(Univ. of Kitakyushu) / Masanori Hirotomo(Saga Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Signal Processing / Technical Committee on Information Theory |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of Coded Caching for Multi-User MISO Channels with Heterogeneous Cache Sizes |
| Sub Title (in English) | |
| Keyword(1) | coded caching |
| Keyword(2) | beamforming |
| Keyword(3) | cache size optimization |
| Keyword(4) | MISO channels |
| Keyword(5) | heterogeneous network |
| 1st Author's Name | Ayaka Urabe |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Koji Ishibashi |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| 3rd Author's Name | MohammadJavad Salehi |
| 3rd Author's Affiliation | University of Oulu(Univ. Oulu) |
| 4th Author's Name | Antti Tolli |
| 4th Author's Affiliation | University of Oulu(Univ. Oulu) |
| Date | 2022-01-20 |
| Paper # | IT2021-38,SIP2021-46,RCS2021-206 |
| Volume (vol) | vol.121 |
| Number (no) | IT-327,SIP-328,RCS-329 |
| Page | pp.pp.57-62(IT), pp.57-62(SIP), pp.57-62(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-01-13 (IT, SIP, RCS) |