Optical layer multicast refers to the support of point-to-multipoint connections directly at the physical layer by employing passive devices known as power splitters. Since the bandwidth requirement of an individual user is only a fraction of optical channel capacity, traffic grooming problems are becoming a crucial constituent in designing wavelength-division-multiplexing (WDM) networks. This work proposes a new efficient multicast traffic grooming algorithm (EMGA) in the dynamic scenario based on an auxiliary grooming graph. The layered auxiliary graph represents the current network resource state and is modified adaptively, based on which multicast routing and wavelength assignment can be realized at the same time. Simulation results show that, under different network loads, the EMGA has lower traffic blocking probability and good network resource utilization with the constraints of wavelength continuity, and limited wavelengths and transceivers.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.