TY - JOUR
T1 - A Mobile Channel Model for VLC and Application to Adaptive System Design
AU - Miramirkhani, Farshad
AU - Narmanlioglu, Omer
AU - Uysal, Murat
AU - Panayirci, Erdal
N1 - Funding Information:
Manuscript received November 8, 2016; revised December 25, 2016; accepted January 8, 2017. Date of publication January 9, 2017; date of current version May 6, 2017. This work is carried out as an activity of Optical Wireless Communication Technologies Excellence Centre funded by Istanbul Development Agency (ISTKA) under Innovative Istanbul Financial Support Program 2015 (TR10/15/YNK-72 OKATEM). The statements made herein are solely the responsibility of the authors and do not reflect the views of ISTKA and/or T.R. Ministry of Development. The works of Farshad Miramirkhani and Erdal Panayirci are supported by TUBITAK Research Grant No. 113E307. The associate editor coordinating the review of this letter and approving it for publication was P. C. Sofotasios.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/5
Y1 - 2017/5
N2 - In this letter, we propose a realistic channel model for visible light communication (VLC) assuming a mobile user. Based on non-sequential ray tracing, we first obtain channel impulse responses for each point over the user movement trajectories, and then express path loss and delay spread as a function of distance through curve fitting. Our results demonstrate large variations in received power. In system design, this necessitates the use of adaptive schemes, where transmission parameters can be selected according to channel conditions. To demonstrate the benefits of link adaptation over a mobile VLC channel, we propose an adaptive system with luminary selection and demonstrate improvements in spectral efficiency over non-adaptive systems.
AB - In this letter, we propose a realistic channel model for visible light communication (VLC) assuming a mobile user. Based on non-sequential ray tracing, we first obtain channel impulse responses for each point over the user movement trajectories, and then express path loss and delay spread as a function of distance through curve fitting. Our results demonstrate large variations in received power. In system design, this necessitates the use of adaptive schemes, where transmission parameters can be selected according to channel conditions. To demonstrate the benefits of link adaptation over a mobile VLC channel, we propose an adaptive system with luminary selection and demonstrate improvements in spectral efficiency over non-adaptive systems.
KW - Visible light communications
KW - adaptive transmission
KW - channel modeling
KW - ray tracing
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U2 - 10.1109/LCOMM.2017.2651800
DO - 10.1109/LCOMM.2017.2651800
M3 - Article
AN - SCOPUS:85028710867
SN - 1089-7798
VL - 21
SP - 1035
EP - 1038
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 5
M1 - 7814217
ER -