Performance analysis of direct communication scheme in tactical radio access networks based on UMTS

In fast moving combat situations, the role of military wireless network is emphasized significantly. Over last decade, the civilian mobile communication technology has proceeded at an unprecedented pace. The advantages of civilian mobile communication technology, such as large capacity and reliable transmission, are attractive to the tactical communication network designers. As a result, lots of researches to apply the advantages of the civilian communications technology and architecture to designing the tactical communication systems have been investigated. Especially, the adaptation of the radio network subsystem (RNS) framework of Universal Mobile Telecommunication System (UMTS) for the tactical wireless communication system has been investigated. In this paper, we propose a new direct communication scheme in tactical radio access networks based on UMTS. The simulation results show the feasible performance when the direct communication scheme is applied in tactical radio access networks based on UMTS