Title :
On Capacity of Downlink Underwater Wireless Optical MIMO Systems With Random Sea Surface
Author :
Huihui Zhang ; Yuhan Dong ; Like Hui
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In this letter, we focus on the relationship among channel capacity, signal-to-noise ratio (SNR), water types, wind speed, and characteristics of transmiter/receiver array such as inter-spacing and link range for downlink underwater wireless optical communications (UWOC) multiple-input multiple-output (MIMO) systems. Numerical results suggest that more turbid water, larger link range, and larger inter-spacing may reduce the channel capacity, and meanwhile more turbid water and larger link range can weaken the effects of random slopes and inter-spacing at the expense of larger SNR to balance the channel capacity.
Keywords :
MIMO communication; channel capacity; optical receivers; optical transmitters; underwater optical wireless communication; wind; SNR; UWOC; channel capacity; downlink underwater wireless optical MIMO systems; downlink underwater wireless optical communications; multiple-input multiple-output systems; random sea surface; signal-to-noise ratio; transmitter-receiver array; turbid water; water types; wind speed; Channel capacity; MIMO; Optical communication; Receivers; Signal to noise ratio; Underwater communication; MIMO; Underwater wireless optical communications; channel capacity; downlink; pointing error;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2484355
