Abstract
An optical wireless multiple-input multiple-output communication system employing intensity-modulation direct-detection is considered. The maximal diversity order of the channel is characterized by studying the outage probability. Then, spatial repetition coding is shown to be diversity-optimal as it achieves the channel's maximal diversity order. This diversity order is given by a simple expression which is suitable for any channel statistics of practical interest. The results are specialized to some practical channel statistics, and numerical results are provided to verify the results.
| Original language | English |
|---|---|
| Pages (from-to) | 74-77 |
| Number of pages | 4 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 7 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Feb 2018 |
| Externally published | Yes |
Keywords
- Intensity-modulation direct-detection
- diversity order
- optical wireless communications
- repetition coding