- 2005 - 現在 Steering Committee Member, 情報処理学会主催ICMU
- 2019/07 - 2020/06 IEEE ICC 2020 CQRM Symposium TPC Co-Chair
- 2014/12 - 2016/08 情報処理学会主催 ICMU(International Conference on Mobile Computing and Ubiquitous Networking) 2016 General Chair
- 2015/10 - 2016/06 IEEE CQR Workshop 2016 TPC Co-Chair
- 2014/10 - 2015/06 IEEE CQR Workshop 2015 TPC Co-Chair
- 2012/05 - 2014/05 電子情報通信学会 通信ソサイエティ 編集長
- 2010/05 - 2012/05 電子情報通信学会 通信ソサイエティ 英文論文誌編集委員長
- 2010/05 - 2012/05 電子情報通信学会 評議員
- 2009/12 - 2010/06 IEICE APSIT 2010, TPC Co-Chair
- 2008/05 - 2010/05 電子情報通信学会 通信ソサイエティ 副会長
- 2008/05 - 2010/05 電子情報通信学会 通信ソサイエティ ネットワークシステム研究専門委員会 委員長
- 2009/07 - 2010/03 21st ITC Specialist Seminar on Multimedia Applications, TPC Co-Chair
- 2007 - 2008 IEEE Kansai Section, Chapter Operation Committee Chair
- 2007 - 2008 Chapter Operation Committee Chair, Kansai Section
- 2003 - 2008 IEEE Region 10, Executive Committee Member
- 2006 - 2007 情報処理学会 モバイルコンピューティングとユビキタス通信研究会幹事
- 2006 - 2007 電子情報通信学会 通信ソサイエティ ネットワークシステム研究会副委員長
- 2006 - 2007 Secretary, Technical Committee of Mobile Computing and Ubiquitous Networking
- 2006 - 2007 Vice Chair, Technical Committee of Network Systems
- 2005 - 2007 Vice Chair, Council of Technical Committee Representatives, Communications Society
- 2005 - 2007 Institute of Electronics, Information and Communication Engineers Member of Board of Directors, Communications Society
- 2003 - 2007 Institute of Electronics, Information and Communication Engineers Member of Technical Committee of Mobile Multimedia Communications
- 2003 - 2006 IEEE Japan Council, Executive Committee Member(Regional Chapter Coordinator)
- 2003 - 2006 Awards Committee Chair, IEEE Kansai Section
- 2003 - 2006 IEEE(Institute of Electorical and Electronics Engineers) Awards Committee Chair, Kansai Section
- 2002 - 2006 Information Processing Society of Japan Member, Technical Committee of Mobile Computing and Ubiquitous Networking
- 2006 - Chapter Promotion Committee Chair, IEEE Kansai Section
- 2006 - IEEE(Institute of Electorical and Electronics Engineers) Chapter Promotion Committee Chair, Kansai Section
- 2002 - 2005 Institute of Electronics, Information and Communication Engineers Member of Technical Committee of Network Systems
- 2005 - Information Processing Society of Japan Steering Committee Member, ICMU
- 2003 - 2004 情報処理学会 ICMU 2004,TPC Chair
- 2003 - 2004 Information Processing Society of Japan Chair, Technical Program Committee, ICMU 2004
- 2002 - 2004 Institute of Electronics, Information and Communication Engineers Member of Technical Committee of Active Network and Its Applications
- 2003 - IEEE(Institute of Electorical and Electronics Engineers) Executive Committee Member of Japan Council
- 2003 - IEEE(Institute of Electorical and Electronics Engineers) Executive Committee Member, Region 10
- 2000/05 - 2002/05 Secretary, Technical Committee of Switching Systems
- 1999/05 - 2001/05 電子情報通信学会 関西支部 評議委員
- 1999 - 2001 Institute of Electronics, Information and Communication Engineers Executive Committee Member, Kansai Section
- 2001 - IEEE(Institute of Electorical and Electronics Engineers) Strategic Plannning and Review Committee Member, Technical Activities Board
- 2001 - IEEE(Institute of Electorical and Electronics Engineers) Executive Committee Member, Kansai Section
- 2001 - IEEE(Institute of Electorical and Electronics Engineers) Member, Japan Council Long Range Strategy Committee
- 2001 - IEEE Technical Activities Board, SPARC委員(Strategic Planning and Review Committee)
- 1999 - 2000 IEEE関西支部, Secretary/Treasurer
- 1999 - 2000 IEEE(Institute of Electorical and Electronics Engineers) Secretary/Treasurer, Kansai Section
- 1997 - 2000 IEICE Transactions on Communications, Associate Editor
- 1997 - 2000 Institute of Electronics, Information and Communication Engineers Associate Editor, Transactions on Communications