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Difficulty: EasyWireless Network Deployment and Standards

Match each IEEE 802.11 wireless standard on the left with its correct maximum theoretical throughput and operating frequency band characteristics on the right.

  • 802.11b11 Mbps maximum throughput operating exclusively in the 2.4 GHz band
  • 802.11g54 Mbps maximum throughput operating exclusively in the 2.4 GHz band
  • 802.11a54 Mbps maximum throughput operating exclusively in the 5 GHz band
  • 802.11ac (Wi-Fi 5)Multi-Gbps maximum throughput operating exclusively in the 5 GHz band

Answer

802.11b matches with 11 Mbps (2.4 GHz); 802.11g matches with 54 Mbps (2.4 GHz); 802.11a matches with 54 Mbps (5 GHz); 802.11ac matches with Multi-Gbps (5 GHz).
Each standard is matched according to its specification in the IEEE 802.11 taxonomy. 802.11b operates in 2.4 GHz at 11 Mbps; 802.11g operates in 2.4 GHz at 54 Mbps; 802.11a operates in 5 GHz at 54 Mbps; and 802.11ac operates exclusively in 5 GHz to deliver multi-gigabit throughput.

Step-by-Step Solution

1
Identify the frequency band and speed limitations of legacy 2.4 GHz standards.
802.11b supports up to 11 Mbps in 2.4 GHz, whereas 802.11g supports up to 54 Mbps in 2.4 GHz.
DSSS modulation limits 802.11b to 11 Mbps, while 802.11g introduced OFDM to 2.4 GHz for 54 Mbps.
2
Differentiate between early 5 GHz standard (802.11a) and modern high-throughput standard (802.11ac).
802.11a provides up to 54 Mbps in 5 GHz, while 802.11ac operates in 5 GHz with multi-gigabit theoretical capabilities.
802.11ac introduced wider channels and MU-MIMO to scale speeds far beyond legacy 54 Mbps limit.

Key Concept

Legacy and modern Wi-Fi standard specifications regarding operating frequency bands and maximum theoretical bandwidth capabilities.
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Topics

Wireless Network Deployment and Standards

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