Ethernet Passive Optical Network (EPON) has been considered for access networks for quite some time to provide high-speed and high-capacity services. As a novel type of network, EPON presents many challenges so one main aim of this paper is to provide a test-bed based on IEEE 802.3ah standards using OPNET Modeler to enable smooth implementation of the wide range of bandwidth allocation algorith...

Advances in optical technology have increased the interest for multiprocessor architectures based on lightwave networks because of the vast bandwidth available. In this paper we propose a passive star multi-hop lightwave network called stack-Kautz, based on the Kautz graph. We show that this architecture is very cost-effective with respect to its resources requirements. We also propose control ...

The delay/disruption tolerant network (DTN) has been researched actively in the last years because of its high applicability to ubiquitous network services such as sensor networks and intelligent transport system (ITS) networks. An efficient data forwarding method for those network services is one of the key components in DTN due to the limitation of wireless network resources. This paper propo...

In this paper, we evaluate the passive optical network based on the transmitting power constraint. A theoretical analysis is carried out to evaluate the performance of a Passive optical network (PON) in the presence of crosstalk due to optical fiber nonlinearities. In this paper most significant nonlinear effects such as four wave mixing (FWM), stimulated Raman scattering (SRS) are investigated...

The paper presents a new method for characterizing communication network performance based solely on passive traffic monitoring at the network edge. More specifically, we devise a novel expectation-maximization (EM) algorithm to infer internal packet loss rates (at routers inside the network) using only observed endto-end (source to receiver) loss rates. The major contributions of this paper ar...

Complementary to performance evaluation, performance testing of communicating protocols is a qualitative and quantitative test of a system, aiming at checking whether performance requirements of protocols have been satisfied under certain conditions. It raises an interesting issue of accurately formalizing specified performance requirements by taking consideration of data values of the protocol...