Chapter 13 / 13.5

13.5 BROADBAND ACCESS TECHNOLOGIES

Broadband access systems are characterized by significantly larger channel bandwidths, enabling higher data rates and supporting multimedia services such as video, high-speed data, and interactive applications. Unlike narrowband systems, which adapted digital signals to analog voice channels, broadband systems are typically designed from the outset as fully digital end-to-end systems.

Examples include digital subscriber line (DSL) technologies, cable modem systems, fiber-to-the-premises (FTTP), and modern wireless broadband systems. These technologies combine advanced modulation, coding, and multiplexing techniques to maximize throughput over available physical media.