In this study, structures and types of passive optical networks are investigated, and the most commonly used multiple access methods in passive optical networks such as TDMA, Time Division Multiple Access, and WDMA, Wavelength Division Multiple Access, methods are explained. igh capacity, low cost, scalability, elasticity and high energy-efficiency. A. Abstract— The fundamental operational principle of a Passive Optical Network (PON), which is based on a point-to-multipoint fiber infrastructure, is the unicast non-overlapping bandwidth allocations to the ranged Optical Network Units (ONUs). Each of these multiplexing methods has its own pros and cons. TDM-PON utilizes time as the signal division parameter, enabling multiple signals to be transmitted over the same physical. Major standardization bodies like IEEE and ITU-T have introduced several PON solutions to mitigate last-mile broadband access and bandwidth allocation problems for end users. In this case, a compelling dynamic bandwidth allocation (DBA) algorithm can provide contention-free access (fairness) to the. Abstract—In the present article, a comparative analysis on principles of TDM, WDM and TWDM multiplexing in passive optical network in the exchange of information in communication networks is performed. Bandwidth, frequency bands and optical power budget of the optical cable line are considered.
