What advanced Physical Layer (PHY) technology added to DOCSIS 2.0 includes byte interleaving?

The advanced Physical Layer (PHY) technology that added byte interleaving to DOCSIS 2.0 is advanced time division multiple access (A-TDMA). This technology improves data transmission efficiency by interleaving data across various time slots. Byte interleaving helps in reducing the impact of errors, especially in environments with high noise or interference.

With A-TDMA, data packets are spread over multiple time slots, allowing for better utilization of bandwidth and increased resilience against burst errors. This makes the transmission more robust, as a single error in a byte does not affect the entire data stream. Rather, the design allows for the potential recovery and correction of transmitted information, enhancing overall network performance.

This specific enhancement was crucial as it addressed the growing user demand for reliable and faster data transmission in cable networks, making it a significant development in the evolution of DOCSIS standards.