Ligipääsuvõrgu

Ligipääsuvõrk, also known as the access network or last-mile network, refers to the part of a telecommunications network that connects end-users to the core network. It is the final segment of the network that delivers services like internet, telephone, and television to homes and businesses. The term "last mile" is commonly used to describe this segment because it represents the final physical connection between the service provider's infrastructure and the customer's premises.

The technology used in ligipääsuvõrk can vary significantly. Historically, copper wire telephone lines were the primary medium, supporting analog voice calls and dial-up internet. With the advent of broadband, technologies like DSL (Digital Subscriber Line) emerged, utilizing existing copper infrastructure to deliver higher speeds. Fiber optic cables are increasingly becoming the preferred medium for ligipääsuvõrk due to their capacity for extremely high bandwidth and faster data transmission. Wireless technologies, such as mobile networks (3G, 4G, 5G) and fixed wireless access (FWA), also play a crucial role, particularly in areas where laying physical cables is difficult or cost-prohibitive.

The efficiency and capacity of the ligipääsuvõrk are critical for the overall performance of telecommunications services. Limitations in the access network can lead to slower speeds and a degraded user experience, even if the core network is robust. Investments in upgrading and expanding ligipääsuvõrk infrastructure are ongoing globally to meet the growing demand for data-intensive applications and services.