Internet of Things (IoT) has been considered as an innovative and imminent information infrastructure enabling to ubiquitously network various machines, physical devices, and objects, denoted as things, for environment sensing, information sharing and collaboration in intelligent and autonomous manner. Such technologies will act as a catalyst to the evolution of a new generation of services that will have a great impact on the social and technological eco-system. It can be envisaged that these next generation systems and services will encompass several domains such as e-Governance, Health Care, Transportation, Waste Management, Food Supply Chains, Energy & Utilities, Insurance etc. New technologies and applications built on top of them must be developed in order to fulfil this vision of Intelligent Infrastructure. IoT poses a number of new challenges and opportunities for computing, networking, data management and analytics due to the large scale and complexity of such systems, and heterogeneity of the things and networks, constrained by limited resources of the things and the network. Encouraged by the good three successive years of ComNet-IoT in conjunction with ICDCN, the goal of CoMNet-IoT 2015 is to provide an inter-disciplinary platform for researchers to exchange ideas, present results, share experience, stimulate new research, and foster collaborations among researchers, professionals, and application developers on the various aspects of sensing, computing, networking, information and distributed systems technologies for IoT, including back-end infrastructure such as the Cloud.