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In this paper, we analyze the performance of a prism-array receiver in a multiple-input multiple-output (MIMO) intensity-modulated direct-detection optical wireless communication system. The elements of the MIMO channel matrix depend on the geometry of each prism and the orientation of the prism relative to the optical transmitter. An expression is derived for each channel gain as a function of the...
In this paper, a prism array-based receiver for intensity-modulated direct-detection (IM/DD) optical wireless systems has been investigated. The receiver uses an array of prisms to achieve angular diversity within a compact receiver structure. The transmission of light through a prism onto a photodetecting surface is presented, showing the power loss of the light. The resulting channel gains are determined...
White lighting LED based systems are emerging as an important form of high data rate communications, especially for indoor applications. Two limitations of existing systems are the small field of view of typical receivers and the poor performance of optical wireless MIMO due to lack of spatial diversity. In this paper we describe a novel design which overcomes these problems by using a hemispherical...
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