ROADM: Concept, Function, Application in Telecom Network

ROADM stands for Reconfigurable Optical Add-Drop Multiplexer. It is a device which which is used to change the traffic path in the wavelength level. Now ROADM can remotely add, block, pass or redirect the light wave without converting into electrical signals. This all happens in the wavelength of the optical fiber. Now a days, WDM… Continue reading ROADM: Concept, Function, Application in Telecom Network

What are D-RAN, X-RAN, C-RAN and O-RAN? What’s the relationship between them?

Simply put, RAN is the base station, which is the network. Before the advent of the 5G era, the base station (RAN) consisted of three parts: the antenna, the RRU (radio-frequency pull-out unit), and the BBU (baseband processing unit). RRU is used to transmit and receive signals, while BBU is used to process signaling messages.… Continue reading What are D-RAN, X-RAN, C-RAN and O-RAN? What’s the relationship between them?