- Associate Editor, IEEE Transcations on Dependable and Secure Computing (TDSC) (2015-)
- Associate Editor, IEEE Transcations on Mobile Computing (2008-2013)
- Member of Advisory Board, Wiley/ACM International Journal of Network Management(2004-2007)
- Guest Editor, Special Issue on Issues in Wireless Sensor Network Management , International Journal of Network Management, Volume 15, Number 4, July-August 2005.
- Guest Co-Editor, Special issue of Elsevier's Journal of Computer Communications on Challenges in 4G Wireless Communication, Volume 27, Issue 8, May 2004.
- Guest Co-Editor, Special issue of Elsevier's Journal of Computer Communications, Advances and Directions in Quality of Service Management, vol. 28/15.
Membership of Professional Bodies
- Member-at-Large, Technical Committee on Computer Communications (TCCC), IEEE Computer Society (2006-2008)
- Senior Member IEEE
- Senior Member ACM
- Secretary/Chair/Committee Member, IEEE Computer Chapter of New South Wales (for a number of years to 2000)
Conference Committees Chairing
- Steering Committee Member: ISSNIP 2010
- Steering Committee Member: ACM Sensys 2008-2010
- General Chair: The 5th ACM Conference on Embedded Networked Sensor Systems (ACM Sensys 2007), Sydney, 2007
- Steering Committee Chair: Emnets-III (Harvard) 2006 and Emnets-IV (Cork), 2007
- International Advisor: IEEE Local Computer Network Conference (LCN) 2007-2009)
- Publicity Chair: The 3rd IEEE International Conference on Distributed Computing in Sensor Systems (DCOSS '07) Santa Fe, New Mexico, USA June 18 - 20, 2007.
- General Chair: Second IEEE Workshop on Embedded Networked Sensors (EmNetS -II), Sydney, 2005
- Local Organisation Chair, 30th IEEE Local Computer Network Conference (LCN 2005), November 2005, Sydney, Australia.
- General chair: The Second IEEE Workshop on Embedded Networked Sensors (EmNetS - II), May 2005, Sydney, Australia.
- Technical Program Committee (TPC) Chair: The 29th IEEE Local Computer Network Conference (LCN 2004), Tampa, Florida
- TPC Co-chair: First IEEE Workshop on Embedded Networked Sensors (EmNetS - I) and founder.
- TPC Chair: Australian Telecommunications Network and Applications (ATNAC04), Sydney
- Co-chair : Internet QoS for Global Computing workshop , IEEE/ACM CCGrid Symposium, Brisbane, 2001
- Tutorial Chair: IEEE International Conference on Networking (ICON 2003), Sydney, NSW (also ICON 2001, Bangkok)
Technical Program Committee Membership:
- ICDCN11, ICC11
- ATNAC10, ICDCS10, EWSN10, ICDCN10
- IPSN09, EWSN09, ICC09, ISSNIP 09, GSN3 (OxfordÕ09)
- ICDCS 2007, MASS08, Sensys07, ATNAC07, Secon06, Globecom06, LOCAN/MASS 2005, WirelessCom2005, SNA05, IEEE Mobility Conference 2005, IEEE Secon 2004, Basenets04, Multimedia
- Symposium ICC2004, ICON 2001/3, LCN 2001-2003, IWDC 2003, EESD 2002, SPIE 2001, APNOMS2001 and others.
Keynote/Tutorials and Talks
- Plenary Talk, Challenges in MAC Protocol Design for Multi-hop Wireless Network ACORN ECR Workshop 2006
- Invited talk at CSAIL/MIT and CAL-IT2/UC-Irvine, Wireless Sensor Networks, Nov, 2004
- Invited talk at Intel Research Labs, Berkeley, Mobility Modeling and Trajectory Prediction for Cellular Networks with Mobile Base Stations May 30, 2003
- Invited talk at ACIRI (ICSI), Berkeley, Application Protocol Label Switching (APLS), 2002
- Tutorials on ÒQoS in IP NetworksÓ in IEEE conferences such as ICON 1999, LCN2000