All-Optical Networking

Koçyiğit, Altan
Gökışık, Demeter
Bilgen, Semih
Gökişik, Demeter
A survey of recent literature on all optical networking is presented. Starting from multiplexing techniques and topological features, network design and performance issues are reviewed. Particular attention is devoted to Wavelength Division Multiplexing (WDM) networks. Static and dynamic solutions of the routing and wavelength assignment (RWA) problem are considered. Issues of current research are summarized.
Turkish Journal of Electrical Engineering & Computer Sciences


Tracing users' behaviors in a multimodal instructional material: An eye-tracking study
Yecan, Esra; Sumuer, Evren; Baran, Bahar; Çağıltay, Kürşat (2007-07-27)
This study aims to explore user behaviors in instructional environments combining multimodal presentation of information. Cognitive load theory and dual coding theory were taken as the theoretical perspectives for the analyses. For this purpose, user behaviors were analyzed by recording participants' eye movements while they were using an instructional material with synchronized video and PowerPoint slides. 15 participants' eye fixation counts and durations for specific parts of the material were collected....
On demand Multicast Routing in Wireless Sensor Networks
Sule, Clifford; Shah, Purav; Doddapaneni, Krishna; Gemikonakli, Orhan; Ever, Enver (2014-05-16)
The wireless networking environment presents imposing challenges to the study of broadcasting and multicasting problems. Developing an algorithm to optimize communication amongst a group of spatially distributed sensor nodes in a WSN (Wireless Sensor Network) has been met with a number challenges due to the characterization of the sensor node device. These challenges include, but are not limited to: energy, memory, and throughput constraints. The traditional approach to overcome these challenges have emphas...
An evaluation of cognitive modeling tools
Bican, Can; Say, Bilge; Department of Cognitive Sciences (2007)
This thesis evaluates several aspects of the cognitive modeling tools, using a questionnaire as the survey method. We try to assess the the suitability for cognitive modeling task of the cognitive modeling tools, from the perspective of international community of cognitive modeling tool users. Part of this assessment is done with respect to general usability of software and the rest is specialized for the cognitive modeling issues. Frequency and correlation analyses reveal that there is a significant relati...
Dominant sets based movie scene detection
SAKARYA, Ufuk; Telatar, Ziya; Alatan, Abdullah Aydın (Elsevier BV, 2012-01-01)
Multimedia indexing and retrieval has become a challenging topic in organizing huge amount of multimedia data. This problem is not a trivial task for large visual databases; hence, segmentation into low- and high-level temporal video segments might improve the realization of this task. In this paper, we introduce a weighted undirected graph-based movie scene detection approach to detect semantically meaningful temporal video segments. The method is based on the idea of finding the dominant scene of the vide...
Eye tracking in multimodal comprehension of graphs
Acartürk, Cengiz (2012-07-31)
Eye tracking methodology has been a major empirical research approach for the study of online comprehension processes in reading and scene viewing. The use of eye tracking methodology for the study of diagrammatic representations, however, has been relatively limited so far. The investigation of specific types of diagrammatic representations, such as statistical graphs is even scarce. In this study, we propose eye tracking as an empirical research approach for a systematic analysis of multimodal comprehensi...
Citation Formats
A. Koçyiğit, D. Gökışık, S. Bilgen, and D. Gökişik, “All-Optical Networking,” Turkish Journal of Electrical Engineering & Computer Sciences, vol. 9, no. 2, pp. 69–121, 2003, Accessed: 00, 2021. [Online]. Available: