The 2015 IEEE International Conference on Communication, Networks and Satellite (COMNETSAT 2015), the fourth COMNETSAT, targets to address current state of the technology and the outcome of the ongoing research in the area of Communications, Networks and Satellite Systems. Articles of interdisciplinary nature are particularly welcome. COMNETSAT 2015 covers theory, design and application of computer and communication, networks and satellite systems. During recent years there as been an impressive increase in the use of networked applications and networks are now key resources in any information system configuration. Wireless and fixed line networks complemented by a growing range of mobile devices are having a significant impact on the way we run our lives and our business. COMNETSAT 2015 invites papers, original & unpublished work from individuals active in the broad theme of the conference.