%0 Journal Article %T Analysis of Coexisting GPON and NG-PON1 (10G-PON) Systems %A M. D. Mrakovi£¿ %A P. S. Matavulj %J Telfor Journal %D 2011 %I Telecommunications Society, Academic Mind %X In this paper, the simulation model of coexisting GPON and NG-PON1 (10G-PON) systems is presented, which has been developed for the analysis of feasibility and implementation issues of this coexistence. The aim was to analyze the impact of the most important parameters of the components that are needed for new network elements, on the performance of these coexistent networks. On the basis of the results obtained, the optimal parameters of the new system components were defined. %K 10 Gb/s %K coexistence %K GPON (Gigabit Passive Optical Networks) %K NG-PON (Next Generation PON) %U http://journal.telfor.rs/Published/Vol3No1/Vol3No1_A9.pdf