期刊
IEEE WIRELESS COMMUNICATIONS LETTERS
卷 7, 期 1, 页码 74-77出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2017.2755011
关键词
Intensity-modulation direct-detection; optical wireless communications; repetition coding; diversity order
资金
- Qatar National Research Fund (a member of Qatar Foundation) under NPRP [9-077-2-036]
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.
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