Open AccessImpact of receiver's tilted angle on channel capacity in VLCs
Author(s) -
Wang JinYuan,
Li QingLin,
Zhu JianXia,
Wang Yongjin
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.4657
Subject(s) - channel (broadcasting) , channel capacity , matlab , plane (geometry) , computer science , electronic engineering , mathematics , telecommunications , engineering , geometry , operating system
The impact of receiver's tilted angle on the channel capacity in visible light communications (VLCs) is investigated. First, the system model is analysed. On the basis of the system model, the lower and upper bounds on the channel capacity for the VLC are presented. An optimisation problem is formulated to improve the channel capacity by tilting the receiver plane. The proposed problem is shown to be a convex optimisation problem, which is efficiently solved by using the CVX toolbox for MATLAB. Numerical results show that the channel capacity can be dramatically improved by tilting the receiver plane properly.