Final answer:
The 802.11n standard employs a transmission technology called Multiple Input Multiple Output (MIMO), which uses multiple antennas to boost wireless network capacity and speed.
Step-by-step explanation:
The new method of transmitting signals used by the 802.11n standard is called Multiple Input Multiple Output (MIMO). This technology allows for multiple signals to be transmitted and received across multiple antennas, significantly increasing the capacity and speed of wireless communications. By using multiple antennas, MIMO technology can send and receive more data simultaneously, which enhances the overall performance of the network. The 802.11n standard, therefore, can support higher data rates than its predecessors, making it well-suited for activities such as streaming high-definition video and online gaming.