Thaere Eido

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In a typical slotted bus-based optical metropolitan network, the position of access node on the networkpsilas bus have a large impact on the network performance. We refer to this problem in data transmission as the unfairness property. In fact, the first nodes on the bus have priority over downstream nodes. Another factor which has a significant impact on(More)
The Ethernet Passive Optical Network (EPON) combines both inexpensive Ethernet equipments and the large bandwidth offered by the optical fiber. Therefore, EPON has been considered as an attractive solution for the next generation broadband access network. In this paper, we present an enhanced Dynamic Bandwidth Allocation (eDBA) algorithm for EPON network.(More)
Optical Packet Switched (OPS) ring Metropolitan Area Networks (MAN) are among the most promising solutions for Next Generation MAN architectures. However, a particular phenomenon is observed in optical ring networks with random access to the transmission medium, such as in asynchronous Optical Unslotted Carrier Sense Multiple Access with Collision Avoidance(More)
This article presents a comparative study between Optical Burst Switching (OBS) and Optical Packet Switching (OPS) with variable-size packets on mono-service and multiservice networkwithQuality of Service (QoS) support. In terms of performance criteria, loss rate in byte and access delay are considered. A 2-state Markov Modulated Poisson Process (MMPP)(More)
Optical Packet Switching (OPS) technologies are among the most promising solutions for Next Generation Network architectures. Resource contention resolution and Quality of Service (QoS) management mechanisms have been developed in order to remedy the lack of optical buffering and implement multi-service support in OPS networks. In this paper we propose an(More)
The problem studied in this paper is a wavelength allocation algorithm applied to a metropolitan optical packet-switched ring network. Existing algorithms that provide optimal wavelength allocation generally require excessive computational time even with a small network of 8 to 16 nodes. Therefore, those approaches seem to be inappropriate for providing a(More)
GMPLS protocol was designed in order to apply label-switching techniques to different network technologies, such as time division multiplexing (TDM), wavelength routing and packet switching networks. Resource reservations are performed all along label switched paths (LSP). This paper proposes a novel constraint-based routing (CBR) algorithm for GMPLS(More)