Which technology allows for higher rates of data by minimizing interference through subchannels?

The correct answer is Orthogonal Frequency Division Multiplexing (OFDM). This technology is designed to optimize the transmission of data by splitting the signal into multiple subchannels, which operate at different frequencies. By doing so, OFDM reduces interference between these subchannels, allowing them to transmit data simultaneously without causing significant disruption to one another. This method is particularly effective in environments with high levels of noise and is widely used in various communication standards, including Wi-Fi, LTE, and digital television.

In contrast, Direct Sequence Spread Spectrum (DSSS) works by spreading the signal across a wider frequency band using a pseudo-random code, which helps mitigate interference but does not focus on the efficiency of subchannels like OFDM. Punchdown tools are utilized for terminating cables in telecommunications and networking applications but do not pertain to data transmission techniques. Loopback plugs are used for testing and troubleshooting network ports; they do not play a role in enhancing data rates or minimizing interference during transmission.