  Since the term first coined in 1999 by Kevin Ashton, the Internet of Things
(IoT) has gained significant momentum as a technology to connect physical
objects to the Internet and to facilitate machine-to-human and
machine-to-machine communications. Over the past two decades, IoT has been an
active area of research and development endeavours by many technical and
commercial communities. Yet, IoT technology is still not mature and many issues
need to be addressed. In this paper, we identify 10 key research topics and
discuss the research problems and opportunities within these topics.
