What is the maximum data rate that IEEE 802.11n can achieve according to the material?

What is the maximum data rate that IEEE 802.11n can achieve according to the material?

• A. 150 Mbps
• B. 600 Mbps
• C. 300 Mbps
• D. 900 Mbps

Answer: (B)

IEEE 802.11n boosts speed by using multiple antennas (MIMO) and wider channels (40 MHz). The highest theoretical PHY rate is 600 Mbps, achieved when there are four spatial streams on a 40 MHz channel, with each stream delivering up to 150 Mbps. So four streams add up to 600 Mbps. The other options reflect fewer streams or unrealizable figures for 802.11n, and in practice throughput will be lower due to overhead and real-world conditions.

IEEE 802.11n boosts speed by using multiple antennas (MIMO) and wider channels (40 MHz). The highest theoretical PHY rate is 600 Mbps, achieved when there are four spatial streams on a 40 MHz channel, with each stream delivering up to 150 Mbps. So four streams add up to 600 Mbps. The other options reflect fewer streams or unrealizable figures for 802.11n, and in practice throughput will be lower due to overhead and real-world conditions.