Research Article
Cognitive Radio for Smart Grid: Theory, Algorithms, and Security
Table 1
IEEE 802.22 characteristics.
| Parameter | Specification |
| Typical cell radius (km) | 30–100 km | Methodology | Spectrum sensing to identify free channels | Channel bandwidth (MHz) | 6, (7, 8) | Modulation | OFDM | Channel capacity | 18 Mbps | User capacity | Downlink: 1.5 Mbps | Uplink: 384 kbps |
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