Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS |
2010-06-17 14:00 |
Kyoto |
Kyoto Univ. |
Performance comparison of beam forming and transmit diversity with STBC for downlink OFDMA wireless network Atsushi Fujiwara, Yoichi Matsumoto (ArrayComm) RCS2010-27 |
[more] |
RCS2010-27 pp.55-60 |
IN, RCS (Joint) |
2010-04-27 10:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Study of the usage of multi-antenna radio access network for public wireless broadband system in VHF band Yutaka Maeda, Atsushi Fujiwara, Yoichi Matsumoto (ArrayComm) RCS2010-10 |
After analog television broadcast service in VHF band is terminated, public wireless broadband system which uses this VH... [more] |
RCS2010-10 pp.55-60 |
RCS |
2009-10-15 13:40 |
Kyoto |
ATR |
A Study on Radio Link Quality in Urban Area with IEEE 802.16e Based Protocol
-- Analysis on Performance Degradation in in-door Environment -- Yutaka Maeda, Atsushi Fujiwara, Yoichi Matsumoto (ArrayComm) RCS2009-115 |
[more] |
RCS2009-115 pp.31-36 |
RCS, NS (Joint) |
2008-07-17 15:50 |
Kyoto |
Kyoto University |
Channel resource allocation in WiMAX Operation
-- Comparison between Fractional Frequency Reuse and Interference Cancellation -- Atsushi Fujiwara, Arvind Raghavan, Veluppillai Manimohan, Yoichi Matsumoto (Array Comm) RCS2008-39 |
[more] |
RCS2008-39 pp.43-48 |
OCS, NS (Joint) |
2008-01-24 15:55 |
Oita |
OITA University |
A Numerical study on Radio on Fiber Transmission of QAM RF signal Atsushi Fujiwara, Joji Maeda (TUS) OCS2007-88 |
Radio over Fiber transmission of QAM signals on 10GHz frequency carrier is numerically studied. The study is concentrate... [more] |
OCS2007-88 pp.19-23 |
RCS, NS (Joint) |
2006-07-21 10:30 |
Hokkaido |
Hokkaido Univ. |
Topology and Traffic Aware Dynamic Channel Assignment for CSMA/CA Based Mesh Networks in a Distributed Manner Kengo Yagyu, Atsushi Fujiwara, Tomoyuki Ohya (NTT DoCoMo) RCS2006-89 |
This paper proposes a dynamic distributed channel assignment technique suitable for the IEEE802.11-based mesh networks. ... [more] |
RCS2006-89 pp.181-186 |
RCS, NS (Joint) |
2006-07-21 11:50 |
Hokkaido |
Hokkaido Univ. |
Admission control for VoIP traffic in wireless-LAN mesh networks Atsushi Fujiwara, Tomoyuki Ohya (NTT DoCoMo) RCS2006-93 |
Admission control, which is employed to wireless-LAN VoIP network in order to ensure the communication quality, is essen... [more] |
RCS2006-93 pp.205-208 |
IN |
2006-06-22 14:20 |
Hokkaido |
|
Unfairness among stations in Wireless LAN Mesh Networks Hiroyuki Niida, Thamnuvong Nokphalinh, Toshihide Fujiwara, Hiroo Sekiya, Shiro Sakata, Takashi Yahagi (Chiba Univ.), Kengo Yagyu, Atsushi Fujiwara (NTT DoCoMo) IN2006-17 |
[more] |
IN2006-17 pp.1-6 |
RCS |
2006-04-21 13:40 |
Osaka |
Osaka Univ. Nakanoshima Center |
A Study on Interference-Aware Beamforming Control in CSMA/CA-Based Wireless Mesh Networks Jaturong Sangiamwong, Atsushi Fujiwara, Tomoyuki Ohya (NTT DoCoMo) RCS2006-11 |
This paper proposes an interference-aware beamforming control scheme for CSMA/CA-based wireless mesh networks. After rou... [more] |
RCS2006-11 pp.61-66 |
RCS |
2006-04-21 14:00 |
Osaka |
Osaka Univ. Nakanoshima Center |
Capacity Improvement with Distributed EDCA Parameter Optimization Kei Igarashi, Akira Yamada, Atsushi Fujiwara, Takatoshi Sugiyama (NTT DoCoMo) RCS2006-12 |
For real-time WLAN applications, Quality of Service (QoS) technologies for WLANs represent a key challenge to support su... [more] |
RCS2006-12 pp.67-72 |
RCS, SIP (Joint) |
2006-01-27 09:00 |
Fukuoka |
Kyusyu Univ. |
A study on packet collision in wireless mesh networks Atsushi Fujiwara (NTT DoCoMo), Susumu Yoshida (Kyodai) |
When IEEE 802.11 protocol, which is based on CSMA/CA scheme, is applied to mesh networks, "hidden terminal problem", "ex... [more] |
RCS2005-155 pp.1-4 |
NS, RCS (Joint) |
2005-07-22 14:00 |
Okayama |
Okayama Univ.(Tsushima Campus) |
Experimental Evaluation of Adaptive Contention Window Control for Layer-2 Mesh Networks Akira Yamada, Atsushi Fujiwara, Yoichi Matsumoto (NTT DoCoMo) |
Wireless communications have become very diverse. Wireless Local Area Network (WLAN) Mesh network technologies represent... [more] |
RCS2005-59 pp.115-119 |
NS, RCS (Joint) |
2005-07-22 14:30 |
Okayama |
Okayama Univ.(Tsushima Campus) |
EDCA Parameter Optimization for Throughput Improvement in Layer-2 Mesh Networks Atsushi Fujiwara, Akira Yamada, Yoichi Matsumoto (NTT DoCoMo) |
In this paper, we apply optimized prioritization parameters for Layer-2 mesh networks, in which access points communicat... [more] |
RCS2005-60 pp.121-125 |
NS, RCS (Joint) |
2005-07-22 14:50 |
Okayama |
Okayama Univ.(Tsushima Campus) |
Topology and Traffic Aware Channel Assignment for Layer-2 Mesh Networks Kengo Yagyu, Atsushi Fujiwara, Shinji Takeda, Koji Omae, Hidenori Aoki, Yoichi Matsumoto (NTT DoCoMo) |
This paper proposes a channel assignment technique suitable for the IEEE802.11-based mesh networks. Given the multiple o... [more] |
RCS2005-61 pp.127-132 |
RCS |
2004-08-26 13:40 |
Hokkaido |
Hokkaido University |
Distributed Radio Channel Allocation Technique Using Chromatic Graph for CSMA/CA Based Wireless Mesh Networks Atsushi Fujiwara, Yoichi Matsumoto (NTT DoCoMo) |
In this paper, we apply a channel allocation principle to avoid the exposed terminal problem changing the channel alloca... [more] |
RCS2004-129 pp.55-59 |
RCS |
2004-06-17 14:15 |
Miyagi |
Tohoku University |
Radio Channel Allocation Technique for CSMA/CA-based Wireless Mesh Networks
-- Sollution to Exposed Terminal Problem -- Atsushi Fujiwara, Yoichi Matsumoto (NTT DoCoMo) |
This paper proposes a channel allocation principle that prevents TCP
throughput degradation for multihop transmission i... [more] |
RCS2004-73 pp.19-24 |