On the stability of multicast flow aggregation in IP over optical network for IPTV delivery
Chinese Optics Letters, Vol. 6, Issue 8, pp. 553-557 (2008)
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Abstract
The stable multicast flow aggregation (MFA) problem in internet protocol (IP) over optical network under the dynamical scenario is studied. Given an optical network topology, there is a set of head ends and access routers attached to the optical network, in which each head end can provide a set of programs (IP multicasting flows) and each access router requests a set of programs, we find a set of stable light-trees to accommodate the optimally aggregated multicast IP flows if the requests of access routers changed dynamically. We introduce a program correlation matrix to describe the preference of end users' requests. As the original MFA problem is NP-complete, a heuristic approach, named most correlated program first (MCPF), is presented and compared with the extended least tree first (ELTF) algorithm which is topology-aware. Simulation results show that MCPF can achieve better performance than ELTF in terms of stability with negligible increment of network resource usage.
© 2008 Chinese Optics Letters
OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications
Citation
Xuan Luo, Yaohui Jin, Qingji Zeng, Weiqiang Sun, Wei Guo, and Weisheng Hu, "On the stability of multicast flow aggregation in IP over optical network for IPTV delivery," Chin. Opt. Lett. 6, 553-557 (2008)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-6-8-553
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