Presentation 2015-11-05
[Invited Lecture] Characteristics Evaluation of Dense Multipath Component in 11GHz-band Indoor Environment
Kentaro Saito, Junichi Takada, Kim Minseok,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently, the five-generation mobile communication system (5G) has been widely investigated in order to accommodate to the user traffic growing rapidly due to the spreads of tablet computers and various application services. Especially for that purpose, the utilization of higher frequency band above 10 GHz in which the wide band spectrum is expected to be available has been investigated actively. However, in the higher frequency bands, in addition to the higher propagation losses, it is thought that the influence of diffuse scattering will be more dominant in MIMO channel characteristic. Because the influence of diffuse scatter caused by the roughness of surfaces such as floors, walls, and ceilings becomes significant as the wavelength of radio wave decreases. Therefore the clarification and the modeling of diffuse scattering process in the higher frequency band becomes an important research topic in the 5G system. In this paper, the 11GHz band MIMO channel sounding was conducted in the LoS indoor environment to clarify the problem. The Specular Multipath Component (SMC) and the Dense Multipath Component (DMC) was estimated from the measured data by using SAGE algorithm and RiMAX algorithm. The results show that the DMC accounted for the 30% - 60% of the total received power. In the measurements, DMCs with high received power were observed, and it is thought that those came from the diffuse scatters from the floor and ceiling between the transmitter and the receiver. The results also show that the propagation parameters of DMC had significant correlations with the parameters of SMC not only in terms of the propagation delay but also the angular and polarization characteristics.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Diffuse Scattering / Dense Multipath Component / MIMO channel / Propagation parameter estimation / RiMAX algorithm
Paper # AP2015-138,RCS2015-223
Date of Issue 2015-10-28 (AP, RCS)

Conference Information
Committee AP / RCS / WPT / SAT
Conference Date 2015/11/4(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Prefectural Museum & Art Museum
Topics (in Japanese) (See Japanese page)
Topics (in English) Antenna and Propagation, Radio Communication, Satelite Communication, Wireless Power Transfer
Chair Keizo Cho(Chiba Inst. of Tech.) / Makoto Taromaru(Fukuoka Univ.) / Naoki Shinohara(Kyoto Univ.) / Morio Toyoshima(NICT)
Vice Chair Hisato Iwai(Doshisha Univ.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / / Takatoshi Sugiyama(Kogakuin Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.)
Secretary Hisato Iwai(KDDI R&D Labs.) / Hidekazu Murata(Niigata Univ.) / Satoshi Denno(Mitsubishi Electric) / Yukitoshi Sanada(NTT DoCoMo) / (Kagoshima Univ.) / Takatoshi Sugiyama(Toyohashi Univ. of Tech.) / Toshinori Susuki(NICT)
Assistant Yuichi Kimura(Saitama Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takashi Hikagae(Hokkaido Univ.) / Tsunayuki Yamamoto(Yamaguchi Univ.)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems / Technical Committee on Wireless Power Transfer / Technical Committee on Satellite Telecommunications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Lecture] Characteristics Evaluation of Dense Multipath Component in 11GHz-band Indoor Environment
Sub Title (in English)
Keyword(1) Diffuse Scattering
Keyword(2) Dense Multipath Component
Keyword(3) MIMO channel
Keyword(4) Propagation parameter estimation
Keyword(5) RiMAX algorithm
1st Author's Name Kentaro Saito
1st Author's Affiliation Tokyo Institute of Technology(Tokyo Institute of Technology)
2nd Author's Name Junichi Takada
2nd Author's Affiliation Tokyo Institute of Technology(Tokyo Institute of Technology)
3rd Author's Name Kim Minseok
3rd Author's Affiliation Niigata University(Niigata University)
Date 2015-11-05
Paper # AP2015-138,RCS2015-223
Volume (vol) vol.115
Number (no) AP-286,RCS-288
Page pp.pp.161-166(AP), pp.197-202(RCS),
#Pages 6
Date of Issue 2015-10-28 (AP, RCS)