From: A review of communication-oriented optical wireless systems
 | Link type | ||
---|---|---|---|
 | Point-to-point | Diffuse | Multispot diffusing |
Link rate | High | Moderate | Moderate |
Implementation complexity | Low | Low | High |
Beam pointing | Required (exact) | Not-required | Required (partial) |
Beam blocking | Yes | No | No |
User mobility | Limited | High | High |
Dispersion | None | High | Low |
Path loss | Low | High | Moderate |
Impact of ambient noise | Low | High | Low |