liityntäverkkojen

Liityntäverkkojen, also known as access networks, refers to the part of a telecommunications network that connects end-users to the wider network infrastructure. This typically includes the final leg of the journey for a communication signal, from the nearest exchange or point of presence to a subscriber's home or business. The primary function of an access network is to provide the physical link for services such as telephone, internet, and television.

Historically, copper wires formed the backbone of most access networks, supporting traditional analog telephone services. With the advent of digital technologies and the increasing demand for high-speed data, various new access network technologies have emerged. These include fiber optic cables, which offer significantly higher bandwidth and faster speeds, forming fiber-to-the-home (FTTH) or fiber-to-the-premises (FTTP) connections. Other notable technologies include digital subscriber line (DSL) over existing copper lines, cable television networks utilizing coaxial cables, and wireless access technologies like cellular (3G, 4G, 5G) and fixed wireless access (FWA).

The choice of access network technology has a direct impact on the services available to users, their quality, and their cost. Different technologies have varying capabilities in terms of speed, latency, and reliability. The ongoing evolution of access networks is driven by the need to support increasingly data-intensive applications, the Internet of Things (IoT), and the ever-growing demand for seamless connectivity.