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Single type of protection for dynamic traffic on WDM network is well-studied, and most protection allocation mechanisms are based on the centralized control. In this paper, we will investigate the mixed-mode protection strategy for the connections in the network, under the assumption of single link failure model. Two types of protection resource allocation methods are proposed. The distributed decision...
The PON and mobile convergence networks is a promising architecture for future access networks to offer seamless services and enhanced experience to users. PON is a wired access technology which is expected to provide a cheap solution to broadband access. Wireless technologies have low deployment costs and mobility. A convergence of PON and wireless could be an attractive solution to broadband network...
Optical performance monitoring (OPM) and optical network management (ONM) are essential in building a reliable and high quality of service system as the optical transmission system continues to evolve towards higher data rates, increased wavelength density and longer transmission distances. Traditional OPM primarily focused on achieving the desired functionality and prove to be insufficient for next...
We propose a new optical hybrid switching solution that takes advantage of both Optical Burst Switching (OBS) and Optical Circuit Switching (OCS) technologies, namely, HyLABS (Hybrid Lightpath and Burst Switching). HyLABS uses static program optimized technology and dynamic switching between OCS and OBS, for network environment with uncertain and high bursty traffic demand. Our study shows that HyLABS...
The typical labeled optical packet switching requires only the header separation at the core node without touching a payload. Thus labeled optical switching is a promising approach to switch and route optical packets in optical packet switching networks. This paper proposes a novel optical header multiplexing technique by coded frequency division multiplexing (CFDM) with the biased 8B/10B coding system...
Network planning methods are evolving to a more automated procedure for designing high investment networks. This automated procedure focuses on the optimization of the economical investment and reliability of the network system. For these purposes, models of networks are used and integrated to be able to compare different potential solutions for a certain region in a fast but efficient way. In this...
Focused all the attention on survivability schemes under the high speed, multi-service and integrated multi-domain optical networks (MDON) environment. In this paper, based on the traits which are multi-service and distributed control for optical network, we first analyze the problems and challenges posed by MDON survivability. According to the survivability need of MDON, we classify associated key...
We evaluate performance of two medium access control methods with token passing, LT-FA MAC and ART MAC, in light trail networks. LT-FA MAC aims at coping with bursty packet arrivals while ART MAC aims at decreasing transmission delay. Simulation evaluation is performed in terms of the number of the maximum transmission nodes accommodated on a light trail and the maximum communication distance under...
With the increasing demands on the capacity of wavelength division multiplexed (WDM) systems, nonlinear effects including inter-channel crosstalk become increasingly important. One of the most significant nonlinear effects in this context is cross-phase modulation (XPM) in optical fiber and accurate determination of this effect is an important issue in the design of WDM optical system. This paper...
In this paper, we present a novel bandwidth-efficient passive optical network (PON) architecture with local customer internetworking capability. It provides high bandwidth efficiency for delivering both upstream and local internetworking data. It is shown through simulation that the throughput and delay performance of the proposed PON is improved compared to conventional PON based on time division...
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