Professor Xiang was a member of the ARC Research Evaluation Committee (Mathematics, Information and Computing Sciences), evaluating the Excellence in Research for Australia (ERA) in 2018. He is the Senior Area Editor of IEEE Signal Processing Letters, the Associate Editor of IEEE Communications Surveys and Tutorials, and the Associate Editor of Computer Standards and Interfaces. He was an Associate Editor of IEEE Signal Processing Letters and IEEE Access and served as Guest Editor for several journals, such as IEEE Transactions on Industrial Informatics, IEEE Multimedia, etc. He has been invited to give keynote speeches and chair committees in many international conferences, review papers for numerous international journals and conferences, serve on conference program committees, chair technical sessions in conferences, and assess grant applications for the ARC and the Swiss National Science Foundation. Professor Xiang is a senior member of the IEEE.