With the introduction of the 6 GHz band in Wi-Fi 6E and Wi-Fi 7, enterprise wireless engineering requires rigorous RF propagation analysis and channel width optimization to avoid co-channel interference (CCI).
1. Wireless Frequency Bands Comparison
| Frequency Band | Channel Width Options | Wall Penetration | Max Real-World Throughput |
|---|---|---|---|
| 2.4 GHz (Legacy) | 20 MHz (3 non-overlapping) | Superior (Long Range) | 75–150 Mbps (IoT only) |
| 5.0 GHz (Enterprise) | 20/40/80 MHz (DFS channels) | Moderate | 600–1200 Mbps (Standard laptops) |
| 6.0 GHz (6E / 7) | 80/160/320 MHz (59 channels) | Low (Line-of-Sight) | 1.8–4.5+ Gbps (High-density office) |