Welcome from the demo chairs

This year we had 33 demo proposals submitted and 23 of them have been accepted by the committee. These papers address important problems in several application domains ranging from IoT, wearable and mobile devices, security/privacy, and real-life applications in pervasive computing. During PerCom, one of the selected demos receives the "Best Demo Award" based on its research value, originality, and presentation. We thank all the authors who submitted their innovative demo papers to PerCom this year, and the committee members for volunteering their time and hard to benefit the PerCom community by providing high-quality reviews.