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 |
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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