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- W4200634570 abstract "In this paper, we investigate capacities of two types of the multiple-input multiple-output (MIMO) optical intensity channel (OIC) under per-antenna peak- and average-intensity constraints, called the equal-cost constrained OIC (EC-OIC) and the bounded-cost constrained OIC (BC-OIC). The average intensities of input in the EC-OIC are required to be equal to preassigned constants, while in the BC-OIC those intensities are no larger than preassigned constants. We first consider a general vector Gaussian channel under moment constraints and prove that its high-SNR capacity is determined by the maximum differential entropy with some mild conditions. Then three capacity expressions are derived for the rank-one EC-OIC, the rank-one BC-OIC and the EC-OIC of rank being the number of transmit antennas minus one, respectively, based on which we obtain the results that : 1) either a rank-one EC-OIC and a rank-one BC-OIC is equivalent to some SISO OIC with an amplitude constraint and several moment constraints; 2) by asymptotic results on the moment-constrained vector Gaussian channel, both high-SNR asymptotic capacities of the EC-OIC and the BC-OIC of rank being the number of transmit antennas minus one are characterized. Furthermore, we focus on low-SNR capacity slopes for the general MIMO BC-OIC, and prove properties of the optimal intensity allocation, which simplify the involved nonsmooth optimization problem." @default.
- W4200634570 created "2021-12-31" @default.
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- W4200634570 date "2021-12-03" @default.
- W4200634570 modified "2023-09-23" @default.
- W4200634570 title "Capacity Results for MIMO Optical Wireless Communication With Per-Antenna Intensity Constraints" @default.
- W4200634570 doi "https://doi.org/10.48550/arxiv.2112.02220" @default.
- W4200634570 hasPublicationYear "2021" @default.
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