Final answer:
The higher bandwidth in 802.11n is made possible by a combination of Orthogonal Frequency Division Multiplexing, Multiple Input Multiple Output, and Channel Bonding.
Step-by-step explanation:
The technology that allows higher bandwidth in 802.11n includes Orthogonal Frequency Division Multiplexing (OFDM), Multiple Input Multiple Output (MIMO), and Channel Bonding. These technologies work together to enhance Wi-Fi performance.
OFDM increases efficiency by splitting radio signals into multiple smaller sub-signals that are transmitted simultaneously at different frequencies, preventing interference. MIMO technology allows more data to be transmitted at once by using multiple antennas to send and receive data streams. Channel Bonding allows two channels to be used together, effectively doubling the transmission capacity.
All these technologies together make 802.11n capable of transmitting data faster and more reliably than its predecessors, allowing for higher bandwidth and improved Wi-Fi experiences.