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Technical Committee on Radio Communication Systems (RCS) (Searched in: 2007)
Search Results: Keywords 'from:2007-11-08 to:2007-11-08'
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, AP (Joint) |
2007-11-08 09:00 |
Tokyo | Univ. of Electro-Commun. | Consideration on Adaptive Beamforming for Multiport Parastic Array Radiator Antenna Masayuki Morishita, Hiroyoshi Yamada (Niigata Univ.), Chen Sun, Makoto Taromaru (ATR), Takashi Ohira (Toyohashi Univ. of Tech.)  AP2007-102 |
A digital beamforming(DBF) array with adaptive beamforming has limitation that circuit scale and power consumption incre... [more] | AP2007-102 pp.1-6 |
| RCS, AP (Joint) |
2007-11-08 09:25 |
Tokyo | Univ. of Electro-Commun. | Transmission Characteristics of MIMO with Consideration of Space Correlation and Mutual Coupling of Array Antenna [I]
-- Mutual Coupling Measurement of Array Antenna with Radiation Pattern -- Ichiro Oshima, Katsumori Sasaki, Yukio Nakata, Yukitaka Takahashi (Denki Kogyo), Yoshio Karasawa (UEC) AP2007-103 |
The authors intend to understand the quantitative transmission characteristics of MIMO taken into consideration of the s... [more] | AP2007-103 pp.7-12 |
| RCS, AP (Joint) |
2007-11-08 09:50 |
Tokyo | Univ. of Electro-Commun. | Channel Capacity Maximization of Low-Profile MIMO Terminal Antenna Using Bidirectional Yagi-Uda Array Naoki Honma, Kentaro Nishimori, Yasushi Takatori, Atsushi Ohta, Shuji Kubota (NTT) AP2007-104 |
This paper proposes a compact and low-profile Multi-Input Multi-Output (MIMO) terminal antenna employing the bidirection... [more] | AP2007-104 pp.13-18 |
| RCS, AP (Joint) |
2007-11-08 10:30 |
Tokyo | Univ. of Electro-Commun. | Cooperative interference cancellation for Multi-user MIMO systems Kentaro Nishimori, Riichi Kudo, Yasushi Takatori, Atsushi Ohta, Shuji Kubota (NTT) AP2007-105 |
[more] | AP2007-105 pp.19-24 |
| RCS, AP (Joint) |
2007-11-08 10:55 |
Tokyo | Univ. of Electro-Commun. | Interference estimation method for time varying channel in multiuser MIMO systems Riichi Kudo, Kentaro Nishimori, Yasushi Takatori, Atsushi Ohta, Kazuyasu Okada (NTT) AP2007-106 |
[more] | AP2007-106 pp.25-30 |
| RCS, AP (Joint) |
2007-11-08 11:20 |
Tokyo | Univ. of Electro-Commun. | A Study on Uplink Weights Compensating Terminal Frequency Offsets in a Virtual MIMO System Yuta Saito, Yasutaka Ogawa, Takeo Ohgane, Toshihiko Nishimura (Hokkaido Univ.) AP2007-107 |
Recently, a virtual antenna array, which is formed by multiple terminals cooperating each other, has attracted attention... [more] | AP2007-107 pp.31-36 |
| RCS, AP (Joint) |
2007-11-08 11:45 |
Tokyo | Univ. of Electro-Commun. | Path Visibility and Configuration of SDMA Base Station in Urban Area Satoshi Ishida, Toshikazu Hori, Mitoshi Fujimoto (Fukui Univ), Kentaro Nishimori (NTT) AP2007-108 |
Space division multiple access (SDMA) has been expected for improving frequency utilization efficiency in mobile communi... [more] | AP2007-108 pp.37-40 |
| RCS, AP (Joint) |
2007-11-08 10:30 |
Tokyo | Univ. of Electro-Commun. | Indoor Propagation Measurements for Wireless Control
-- Measurement System and Basic Experiments -- Kouji Endou, Takaya Yamazato, Masaaki Katayama (Nagoya Univ.) RCS2007-97 |
In order to collect basic reference data for wireless controls of industrial equipments, we have constructed a system to... [more] | RCS2007-97 pp.1-6 |
| RCS, AP (Joint) |
2007-11-08 10:55 |
Tokyo | Univ. of Electro-Commun. | Channel generation using simplified 2-D raytracing for area-spectral efficiency evaluation of wireless systems with spatial signal processing Ikuo Hiradate, Kazuto Yano, Makoto Taromaru (ATR) RCS2007-98 |
In this paper, a channel generation method for area-spectral efficiency evaluation of wireless systems with spatial si... [more] |
RCS2007-98 pp.7-12 |
| RCS, AP (Joint) |
2007-11-08 11:20 |
Tokyo | Univ. of Electro-Commun. | Effects of Spatial Correlation between Signal Subspaces on Indoor Localization Using Subspace Matching Shohei Ikeda (Keio Univ.), Hiroyuki Tsuji (NICT), Tomoaki Ohtsuki (Keio Univ.) RCS2007-99 |
We present experimental results about a spatial correlation between signal subspaces on indoor localization using a subs... [more] | RCS2007-99 pp.13-17 |
| RCS, AP (Joint) |
2007-11-08 11:45 |
Tokyo | Univ. of Electro-Commun. | Bi-directional Link Multiplexing for MIMO Mesh Network Fumie Ono (Yokohama National Univ.), Kei Sakaguchi (Tokyo Tech.) RCS2007-100 |
Wireless mesh network can realize higher connectivity and coverage with reasonable cost. However, wireless mesh network ... [more] | RCS2007-100 pp.19-24 |
| RCS, AP (Joint) |
2007-11-08 13:30 |
Tokyo | Univ. of Electro-Commun. | Interferometric Observation of Over-horizon VHF Signals Associated with Earthquakes Yoshihiro Yasuda (Univ. of Electro-Communications), Takeyoshi Gotoh (Yokogawa Electric Corporation), Yuichi Ida, Naoyuki Yonaiguchi, Masashi Hayakawa (Univ. of Electro-Communications) AP2007-109 |
[more] | AP2007-109 pp.41-46 |
| RCS, AP (Joint) |
2007-11-08 13:55 |
Tokyo | Univ. of Electro-Commun. | An Experimental Study on Characteristics of Arrival direction in 5-GHz Band Non-Line-of-Sight FWA Systems Toshio Ito, Naoki Kita, Wataru Yamada, Atsuya Ando, Takatoshi Sugiyama (NTT) AP2007-110 |
The microwave band around the 5GHz band attracts attention for wireless communication regardless of the fixed/mobile com... [more] | AP2007-110 pp.47-52 |
| RCS, AP (Joint) |
2007-11-08 14:20 |
Tokyo | Univ. of Electro-Commun. | The clearance of dipole antenna and meander line antenna Hiroyuki Arai (Yokohama Natl. Univ.) AP2007-111 |
To clarify the electrically occupied space in the vicinity of the antenna, a clearance of antenna is defined by the vari... [more] | AP2007-111 pp.53-56 |
| RCS, AP (Joint) |
2007-11-08 13:30 |
Tokyo | Univ. of Electro-Commun. | Asynchronous OFDMA using multiuser interference canceler Yosuke Harada, Shogo Yamada, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.) RCS2007-101 |
There has been a increasing interest in the OFDM system as a broadband transmission scheme under the limited frequency b... [more] | RCS2007-101 pp.25-30 |
| RCS, AP (Joint) |
2007-11-08 13:55 |
Tokyo | Univ. of Electro-Commun. | A Study on Channel Capacity of MC-CDMA with ICI Canceller Koichi Adachi (Keio Univ.), Fumiyuki Adachi (Tohoku Univ.), Masao Nakagawa (Keio Univ.) RCS2007-102 |
Orthogonal frequency division multiplexing (OFDM) which uses a number of narrow band sub-carriers and multi-carrier code... [more] | RCS2007-102 pp.31-36 |
| RCS, AP (Joint) |
2007-11-08 14:20 |
Tokyo | Univ. of Electro-Commun. | Delta-Sigma Emvelope Pulse-Width Modulation(EPWM) Transmitter for High Efficiency Linear Amplification Edwin M. Umali, Yoshikazu Toyama, Yasushi Yamao (Univ. of Electro-Comm.) RCS2007-103 |
Multi-carrier systems such as the OFDM require linear amplification and have low power efficiency because of a high peak... [more] | RCS2007-103 pp.37-42 |
| RCS, AP (Joint) |
2007-11-08 15:00 |
Tokyo | Univ. of Electro-Commun. | Design of Reflection Suppression and Aperture Field Disitribution in the Waveguide Two-Dimentional Slot Array using Conbination of Full-Wave MoM Analysis and Equivalent Circuit Model Miao Zhang, Jiro Hirokawa, Makoto Ando (Tokyo Tech.) AP2007-112 |
Waveguide two-dimensional slot arrays are optimally designed by using the combination of a full-wave MoM Analysis and an... [more] | AP2007-112 pp.57-62 |
| RCS, AP (Joint) |
2007-11-08 15:25 |
Tokyo | Univ. of Electro-Commun. | Single-Layer Post-Wall Waveguide Butler Matrix with 180-Degree Dividers to control Crossing and Sidelobe Levels Keiichi Morimoto, Jiro Hirokawa, Makoto Ando (Tokyo Tech) AP2007-113 |
The configuration of an additional circuit to the 4-way Butler matrix was proposed to control the crossover and sidelobe... [more] | AP2007-113 pp.63-68 |
| RCS, AP (Joint) |
2007-11-08 15:50 |
Tokyo | Univ. of Electro-Commun. | Mutual Coupling Reduction Charactersitics of Separate Tx/Rx Aperture-Couplied Patch Antennas Comprised Trapezoidal-shaped Elements Huiling Jiang, Ryo Yamaguchi, Keizo Cho (NTT DoCoMo) AP2007-114 |
A RF integrated antenna configuration which will decrease the feeding loss and ensure the sufficient power for broadband... [more] | AP2007-114 pp.69-73 |
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