High QoS and low cost wavelength allocation protocol in optical network using multicast technology

The construction of light-trees is one of the principal sub-problems for all-optical multicast technology in wavelength division multiplexing (WDM) networks. In this paper a new algorithm proposed to maximize quality of service by minimizing dispersion on the converted wavelength. Network cost is significantly reduced by decreasing number of wavelengths and Number of wavelength converters utilized to produce multicast services. The simulation results show that the proposed algorithms have a better performance when compared to existing optimal algorithms.