Title :
Generalized wavelength sharing policies for absolute QoS guarantees in OBS networks
Author :
Yang, Li ; Rouskas, George N.
Author_Institution :
Dept. of Comput. Sci., North Carolina State Univ., Raleigh, NC
fDate :
4/1/2007 12:00:00 AM
Abstract :
We consider the problem of supporting absolute QoS guarantees in terms of the end-to-end burst loss in OBS networks. We present a parameterized model for wavelength sharing which provides for isolation among different traffic classes while also making efficient use of wavelength capacity through statistical multiplexing. We develop a heuristic to optimize the policy parameters for a single link of an OBS network. We also develop a methodology for translating the end-to-end QoS requirements into appropriate per-link parameters so as to provide network-wide guarantees. Our approach is easy to implement, it can support a wide variety of traffic classes, and is effective in meeting the QoS requirements and keeping the loss rate of best-effort and overall traffic low
Keywords :
optical burst switching; optical fibre networks; quality of service; statistical multiplexing; wavelength assignment; OBS network; QoS; statistical multiplexing; traffic classes; wavelength sharing; Communication system traffic control; Computer science; Delay; Optical losses; Optical packet switching; Quality of service; Resource management; Telecommunication traffic; Traffic control; WDM networks;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
DOI :
10.1109/TWC.2007.026706