Title :
On the Spectrum-Efficient Overlay Multicast in Elastic Optical Networks Built with Multicast-Incapable Switches
Author :
Xiahe Liu ; Long Gong ; Zuqing Zhu
Author_Institution :
Sch. of Inf. Sci. & Technol., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
We study overlay multicast (OL-M) in multicast-incapable elastic optical networks (EONs), and propose a spectrum-efficient OL-M scheme that relies on the spectrum-flexible member-only relay, i.e., OL-M-SFMOR. Our simulation results indicate that OL-M-SFMOR achieves significant improvements on the spectrum-efficiency of multicast in EONs, when compared with other multicast schemes, even including the all-optical multicast schemes in multicast-capable EONs.
Keywords :
OFDM modulation; multicast communication; optical fibre networks; optical switches; overlay networks; radio spectrum management; relay networks (telecommunication); OL-M-SFMOR; all-optical multicast schemes; multicast-capable EON; multicast-incapable elastic optical networks; multicast-incapable switches; optical orthogonal frequency division multiplexing; spectrum-efficiency; spectrum-efficient OL-M scheme; spectrum-efficient overlay multicast; spectrum-flexible member-only relay; Optical fiber networks; Optical switches; Optical transmitters; Relays; Topology; Unicast; Overlay multicast; elastic optical networks (EONs); energy-efficient networking; optical orthogonal frequency-division multiplexing (O-OFDM);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.081313.131485
