Capacity Results on Multiple-Input Single-Output Wireless Optical Channels

• Published in: IEEE transactions on information theory Vol. 64; no. 11; pp. 6954 - 6966
• Main Authors: Moser, Stefan M., Wang, Ligong, Wigger, Michele
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.11.2018; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); Institute of Electrical and Electronics Engineers
• Subjects: Average- and peak-power constraint; channel capacity; Communication channels; Computer Science; direct detection; Gaussian noise; Information Theory; infrared communication; Light emitting diodes; Lower bounds; MISO communication; multiple-input single-output (MISO) channel; Optical communication; Optical noise; Optical receivers; Optical transmitters; Photodetectors; Random noise; Signal to noise ratio
• ISSN: 0018-9448; 1557-9654
• DOI: 10.1109/TIT.2018.2825994

This paper derives upper and lower bounds on the capacity of the multiple-input single-output free-space optical intensity channel with signal-independent additive Gaussian noise subject to both an average-intensity and a peak-intensity constraint. In the limit where the signal-to-noise ratio (SNR) tends to infinity, the asymptotic capacity is specified, while in the limit where the SNR tends to zero, the exact slope of the capacity is given.