| Presentation | 2015-05-22 Low frequency and small communications in dense small cells Takahiko Yamada, Toshikazu Nishimura, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper discusses tiny communications in a campus net, in which small-cells are densely laid. The radius of those cells is about 10m, and they use beamforming millimeter radio. The main target of the campus net is an integration of telephone and computer net with cellular network. Dense small-cells allow ubiquitous tiny communications by low power simple terminals like sensor nodes in the campus area. Supposing use of 3GLTE protocol, small-cells need no synchronization process before communications even after long sleep since the turn around delay between the base station and any terminals in a cell is far smaller than CP (Cyclic Prefix) for the symbol terms. For upward communications, slotted alpha access means are given to tiny communications. The slot means radio resource in PDSCH which is defined by an ID (RNTI in 3GLTE protocol) given to a group not to terminals. Any terminal can put data to a slot at its will. The network can be very flexible since appearing frequency and size of slots can be modified depending on traffic. In base stations, bit-based processing to each frame is executed with no regard to specific terminal. Typical one is ACK processing for success of data transfer. In addition to the LTE functions, TCE (Tiny Communication Entity) is provided, where processing is done with regard to specific terminal. For down ward communications, data are once stored in TCE, and terminals try to read them, since terminals of those tiny communications are usually in power off. Terminals can restart communications at any cell when they move to other cell, though handover is not included since terminal dependent processing is not conducted in eNodeB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LAN / Cellular network / Small cell / Millimeter wave, / Tiny communications, / 3GLTE |
| Paper # | RCS2015-33 |
| Date of Issue | 2015-05-14 (RCS) |
| Conference Information | |
| Committee | RCS / IN |
|---|---|
| Conference Date | 2015/5/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Internet, Multi-hop network, Mesh network, Network coding, Cross layer technique, Wireless communication, etc. |
| Chair | Makoto Taromaru(Fukuoka Univ.) / Hidetsugu Kobayashi(NTT) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Eiji Okamoto(Nagoya Inst. of Tech.) / Katsunori Yamaoka(Tokyo Inst. of Tech.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Eiji Okamoto(NTT DoCoMo) / Katsunori Yamaoka(KDDI Labs.) |
| Assistant | Jun Mashino(NTT) / Manabu Mikami(Softbank Mobile) / Toshiaki Yamamoto(KDDI R&D Labs.) / Takamichi Inoue(NEC) / Tetsuya Yamamoto(Panasonic) / Koji Ishibashi(Univ. of Electro-Comm.) / Yuichi Ooshita(Osaka Univ.) / Yuichi Sudo(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Information Networks |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low frequency and small communications in dense small cells |
| Sub Title (in English) | |
| Keyword(1) | LAN |
| Keyword(2) | Cellular network |
| Keyword(3) | Small cell |
| Keyword(4) | Millimeter wave, |
| Keyword(5) | Tiny communications, |
| Keyword(6) | 3GLTE |
| 1st Author's Name | Takahiko Yamada |
| 1st Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 2nd Author's Name | Toshikazu Nishimura |
| 2nd Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| Date | 2015-05-22 |
| Paper # | RCS2015-33 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-43 |
| Page | pp.pp.49-54(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-05-14 (RCS) |