This book constitutes the refereed proceedings of the 18th International Conference on Distributed and Computer and Communication Networks, DCCN 2015, held in Moscow, Russia, in October 2015. The 38 revised full papers presented were carefully reviewed and selected from 94 submissions. The papers cover the following topics: computer and communication networks architecture optimization; control in computer and communication networks; performance and QoS evaluation in wireless networks; modeling and simulation of network protocols; queuing and reliability theory; wireless IEEE 802.11, IEEE 802.15, IEEE 802.16, and UMTS (LTE) networks; FRID technology and its application in intellectual transportation networks; protocols design (MAC, Routing) for centimeter and millimeter wave mesh networks; internet and web applications and services; application integration in distributed information systems; big data in communication networks.