New paper accepted for IEEE Wireless Commun. Lett.

Our paper “Diversity-Multiplexing Tradeoff of Dynamic Harvest-and-Foward Cooperation” has been accepted for publication in the  IEEE Wireless Commun. Lett, which was co-authored with Prof. I. Krikidis and Dr. C. K. Ho.

Our paper has been accepted to Asilomar’15

Our paper entitled “Frameless ALOHA with Multiple Base Stations” has been accepted to Asilomar’15 will be held at Asilomar Conference Grounds, CA.

The program is available at the following website:

Presentation@MJWRT 2015

Professor Ishibashi gave an invited talk entitled “Coding over Nodes: A Way Towards Ergodic Capacity” at Malaysia-Japan Workshop on Radio Technology (MJWRT 2015) at UTM Kuala Lumpur on 15th June 2015.

20150623145014-ApeosPort-V C3375 T2(525459)-2434-150623145018

Prof. Chen visited our laboratory.

Prof. Yougan Chen, Ph.D visited our laboratory and had discussions with Prof. Ishibashi on 1st June.

Prof. Chen published the paper entitled “OFDM-Modulated Dynamic Coded Cooperation in Underwater Acoustic Channels” in IEEE Journal of Oceanic Engineering which was inspired by Prof. Ishibashi’s paper on dynamic coded cooperation.

[Prof. Chen’s website]


Our member, Hiroki Kawabata, gave presentation titled “Analysis of Energy Harvesting Relay Selection Using Channel Distribution Information” at IEICE SR, Akashi, Japan.


“チャネル分布情報を用いたエナジーハーベスティング中継端末選択法の解析”,川畑大樹,ヴッパラ サティアナラヤナ,アブレウ ジュゼッペ,石橋功至

Prof. Abreu: New visiting professor.

Prof. Giuseppe Abreu from Jacobs University Bremen, Germany, is now visiting our laboratory.

He will stay until the end of August and we have started a joint research project about the secrecy capacity.

2014 IEICE RCS Active Research Award

Naoki Takeishi, an alumnus of our group, won the 2014 IEICE RCS Active Research Award.

石橋研究室の卒業生である武石直樹君が,2014年度電子情報通信学会 無線通信システム(RCS)研究会活動奨励賞を受賞しました.



English follows Japanese.

2015年3月に滋賀県立命館大学で開催されたIEICE 2015年総合大会において、修士1年川畑大樹君、尾形 駿君が下記のテーマで発表を行いました。

“チャネル分布情報を用いたエナジーハーベスティング中継端末の選択法に関する一検討”,川畑大樹,Abreu Giuseppe,Vuppala Satyanaranaya,石橋功至

“Frameless ALOHAにおけるターゲット重みの最適化”,尾形駿,ジュゼッペ  アブレウ,石橋功至

Our members, Hiroki Kawabata and Shun Ogata gave presentations titled “A study on energy harvesting relay selection using channel distribution information”  and “Optimization of the target degree of frameless ALOHA,” respectively at the 2015 IEICE General Conference.