QoS-Guaranteed Wavelength Allocation for WDM Networks with Limited-Range Wavelength Conversion
نویسندگان
چکیده
In this paper, we consider QoS-guaranteed wavelength allocation for WDM networks with limited-range wavelength conversion. In the wavelength allocation, the pre-determined number of wavelengths are allocated to each QoS class depending on the required loss probability. We evaluate the connection loss probability of each QoS class for single-hop and ring networks using continuous-time Markov chain and simulation. Numerical examples show that the proposed wavelength allocation method can provide significantly small connection loss probability for the highest priority class.
منابع مشابه
A Novel Protection Guaranteed, Quality of Transmission Aware Routing and Wavelength Assignment Algorithm for All-optical Networks
Transparent All Optical Networks carry huge traffic and any link failure can cause the loss of gigabits of data; hence protection and its guarantee becomes necessary at the time of failure. Many protection schemes were presented in the literature, but none of them speaks about protection guarantee. Also, in all optical networks, due to absence of regeneration capabilities, the physical layer i...
متن کاملMulticasting in Multihop Optical WDM Networks with Limited Wavelength Conversion
This paper provides an overview on efficient algorithms for multicasting in optical networks supported by Wavelength Division Multiplexing (WDM) with limited wavelength conversion. We classify the multicast problems according to offline and on-line in both reliable and unreliable networks. In each problem class, we present efficient algorithms for multicast and multiple multicast and show their...
متن کاملQoS Provisioning with Shared Wavelength Allocation for Limited-range Wavelength Conversion
With the explosive growth of the Internet, QoS provisioning becomes increasingly important in all-optical wavelength routing network. In this paper, we consider connection loss probability as QoS metrics and propose a wavelength allocation method to provide multiple QoS classes in terms of the connection loss probability. With our method, wavelengths are classified into two types of sets, dedic...
متن کاملApproximate analysis of limited-range wavelength conversion all-optical WDM networks
We use the analytical model for multi-®bre WDM networks to approximately analyse the network performance of limited-range wavelength conversion WDM networks. In addition, we develop a simple analytical model for multi-®bre networks with limited-range wavelength conversion capability by combining the multi-®bre network model and the limited-range wavelength conversion network model. Extensive ca...
متن کاملA real-time distributed scheduling algorithm for supporting QoS over WDM networks
Most existing or proposed WDM networks employ circuit switching, typically with one session having exclusive use of one entire wavelength. Consequently they are not suitable for data applications involving bursty traac patterns. The MIT AON Consortium 1 has developed an all-optical LAN/MAN testbed which provides time-slotted WDM service and employs fast-tunable transceivers in each optical term...
متن کامل