| Presentation | 2016-03-03 [Special Invited Talk] Continuous Evolution of Wireless Communications Technology Fumiyuki Adachi, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Mobile communications network has evolved into the 4th generation (4G) after 35 years from its birth in December of 1979. We witnessed the new generation every 10 years. From 1G to 2G, the coverage extension was the most important concern. Between 2G and 3G, there was a big leap in the radio transmission data rate. The major communication service was the voice in 1G and 2G networks. In 3G mobile communications, high speed data communications of up to 2Mbps was targeted. Since the start of 3G services, video communications have been getting popular. In 3.9G LTE and 4G LTE-A, much higher quality video communications and close-to-1Gbps broadband data services will become more and more popular. Therefore, the area spectrum efficiency (bps/Hz/km2) is a paramount concern. The mobile data traffic volume in 2020 is expected to reach about 1000 times of 2010. In 5G, much broader data services (>1Gbps/user) and massive device connections services are expected. Hence, not only the radio energy efficiency (bits/Joule) but also the network energy efficiency becomes an important concern. In this paper, we overview the evolution of mobile communications technology over the past 35 years and discuss about the technical issues toward 5G. Finally, we will introduce the distributed antenna cooperative wireless signal transmission techniques which improve simultaneously the spectrum and energy efficiencies while providing seamless connection. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile radio communication / personal mobilecommunication / LTE/LTE-A / 5G mobile communications system / small-cell network / distributed antenna |
| Paper # | CCS2015-70,RCS2015-373,SR2015-107,SRW2015-99 |
| Date of Issue | 2016-02-24 (RCS, SR, SRW), 2016-02-25 (CCS) |
| Conference Information | |
| Committee | RCS / CCS / SR / SRW |
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| Conference Date | 2016/3/2(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Makoto Taromaru(Fukuoka Univ.) / Hiroo Sekiya(Chiba Univ.) / Takeo Fujii(Univ. of Electro-Comm.) / Hiroshi Harada(Kyoto Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada(Kagawa National College of Tech.) / Yasuhiro Tsubo(Kyoto Sangyo Univ.) / Naoki Wakamiya(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi(NTT) / Masafumi Kato(NICT) / Satoshi Denno |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Complex Communication Sciences / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Special Invited Talk] Continuous Evolution of Wireless Communications Technology |
| Sub Title (in English) | |
| Keyword(1) | Mobile radio communication |
| Keyword(2) | personal mobilecommunication |
| Keyword(3) | LTE/LTE-A |
| Keyword(4) | 5G mobile communications system |
| Keyword(5) | small-cell network |
| Keyword(6) | distributed antenna |
| 1st Author's Name | Fumiyuki Adachi |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2016-03-03 |
| Paper # | CCS2015-70,RCS2015-373,SR2015-107,SRW2015-99 |
| Volume (vol) | vol.115 |
| Number (no) | CCS-475,RCS-472,SR-473,SRW-474 |
| Page | pp.pp.17-22(CCS), pp.231-236(RCS), pp.107-112(SR), pp.159-164(SRW), |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS, SR, SRW), 2016-02-25 (CCS) |