NGN, or next-generation network, is a phrase that will always accompany us. It’s one of those buzzwords that, no matter how often we use it, won’t become cliché.
System architecture is about theory and practice. If anyone thinks differently, the end result will be an ill-planed system or worse.
Recently, there’s been tremendous growth in the delivery of next-gen services. This growth is due in large part to the considerable number of operators who have transitioned to NGN (next-generation networks). But has this evolution helped drive optical networking strategy as well? Absolutely! The evolution to NGN has dramatically affected the way optical networks are now being designed and implemented, and vendors and operators alike are looking for innovative ways to cost effectively address an almost insatiable demand for new services.
One of the hot topics today is wavelength division multiplexing passive optical network, or “WDM-PON,” and for good reason. In a nutshell, WDM-PON is a next-gen access technology that provides a dedicated, secure wavelength to each end user in a network, enabling huge subscriber density over just a single fiber. This type of architecture can bring significant advantages over a traditional PON network in which wavelengths are “split” between multiple users, up to 16 or 32 in most cases.