Browsing by Author "Dilli, Orkun"

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Citation - WoS: 3
Citation - Scopus: 3
Application of Fnbdt/Scip Protocol on Local Area Network and Determination of Limit Values
(Gazi Univ, Fac Engineering Architecture, 2010) Dilli, Orkun; Akcam, Nursel; Koyuncu, Murat; Information Systems Engineering; Information Systems Engineering; 06. School Of Engineering; 01. Atılım University
Fast progress in technologies affects all the domains as well as the communication systems. Different types of systems or devices are developed and given to the services without losing time. Although these progresses, in general, have positive effects sometimes they may cause some problems. One of these problems is that the different terminal devices based on ISDN, PSTN and IP cannot communicate end-to-end with each other in a seamless secure way. In this study, FNBDT (Future Narrow Band Digital Terminal)/SCIP (Secure Communication Interoperability Protocol) protocol, which is developed for end-to-end secure communication of different terminal devices communicating on different networks, is tested from different perspectives using terminal emulator on IP Networks. These types of study have great importance in terms of providing some feedbacks to the development of FNBDT/SCIP and, as one of the initial work on this topic, this study will contribute to the future works in the area.
Fnbdt/scıp Protokolünün Yerel Alan Ağında Uygulanması ve Sınır Değerlerin Tespit Edilmesi
(2010) Dilli, Orkun; Akçam, Nursel; Koyuncu, Murat; Information Systems Engineering; 06. School Of Engineering; 01. Atılım University
Teknolojideki hızlı değişim her alanda olduğu gibi haberleşme sistemlerinde de yaşanmaktadır. Geliştirilen farklı sistemler veya cihazlar zaman kaybedilmeden kullanıma sunulmaktadır. Söz konusu değişim genelde olumlu olmakla birlikte bazen olumsuz sonuçlara da yol açabilmektedir. Bu olumsuz sonuçlardan bir tanesi, ISDN, PSTN ve IP tabanlı haberleşme cihazlarının birbirleriyle uçtan uca güvenli olarak haberleşme yapamamasıdır. Bu çalışmada, farklı haberleşme ağları üzerinde uçtan uca emniyetli haberleşmenin yapılması amacıyla geliştirilen FNBDT (Future Narrow Band Digital Terminal)/SCIP (Secure Communication Interoperability Protocol) protokolü, emulatörler vasıtasıyla IP ağ üzerinde değişik açılardan test edilmiştir. Bu tür çalışmaların yapılmasının FNBDT/SCIP protokolünün gelişimine katkıda bulunmak açısından büyük önem arz etmekte olduğu ve sunulan çalışmanın bu alanda gerçekleştirilmiş ilk çalışmalardan birisi olması nedeniyle de gelecekte konuyla ilgili yapılacak çalışmalara katkı sağlayacağı düşünülmektedir.
Citation - WoS: 1
Secure Communication Tests Carried Out With Next Generation Narrow Band Terminal in Satellite and Local Area Networks
(Ieee, 2013) Dilli, Orkun; Akcam, Nursel; Koyuncu, Murat; Oguslu, Ender; Surgical Sciences; Information Systems Engineering; 06. School Of Engineering; 08. Medical School; 01. Atılım University
Communication becomes more and more important day by day and especially secure communication from one end to the other holds a vital place in our daily life. Developed countries which are aware of this fact has started to carry out serious studies on secure communication from one end to the other. One of the most important studies is the project which appeared as FNBDT (Future Narrow Band Digital Terminal) at first and was renamed as SCIP (Secure Communication Interoperability Protocol) later on. FNBDT (Future Narrow Band Digital Terminal) or SCIP (Secure Communication Interoperability Protocol) is a communication protocol which is a result of secure communication need of different network devices in contact with each other. The main purpose of the protocol is to provide the new generation terminals which are source of transmission with secure communication with each other through different networks using narrow band. National and international studies on FNBDT/SCIP has focused on three main points; FNBDT protocol, SCIP protocol and codes of MELP (Mixed Excitation Linear Prediction) Studies about implementation of FNBDT/SCIP are much fewer than theoretical studies on the matter. Some tests of FNBDT/SCIP on satellite and local Networks are carried out to overcome this lack of implementation. It is aimed to set up calls on different Networks, to check transmission of voice and data with and without any loss and to find out the limits with these tests. Results of these tests were declared before. In this study, some tests on satellite and local Networks are carried out; as a result, values about call set ups and limits of voice and data transmission are compared with ITU (International Telecommunications Union) standards.