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Performance analysis of TCP over visible light communication networks with ARQ‐SR protocol
Author(s) -
Mai Vuong V.,
Tran NgocAnh,
Thang Truong C.,
Pham Anh T.
Publication year - 2014
Publication title -
transactions on emerging telecommunications technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 47
ISSN - 2161-3915
DOI - 10.1002/ett.2808
Subject(s) - automatic repeat request , computer science , go back n arq , throughput , computer network , selective repeat arq , transmission control protocol , transmission (telecommunications) , visible light communication , zeta tcp , hybrid automatic repeat request , tcp global synchronization , telecommunications , optics , network packet , physics , wireless , light emitting diode
This paper theoretically studies the performance of transmission control protocol (TCP) over visible light communications (VLC) networks when the automatic‐repeat request, selective repeat (ARQ‐SR) protocol is employed in the link layer. We analytically derive TCP throughput considering the impact of ARQ‐SR parameters and different VLC physical factors, including inter‐symbol interference (ISI), signal reflection and light power distribution. Numerical results show that TCP throughput is strongly dependent on the location of VLC user due to impacts of ISI and signal reflection. It is also seen that the use of ARQ‐SR could significantly improve both the maximum value and the distribution of TCP throughput in the VLC network. Especially, with a proper selection of the number of re‐transmissions by the ARQ‐SR protocol, the dependence of TCP throughput on user location caused by ISI, light signal reflection and distribution could be effectively remedied. Copyright © 2014 John Wiley & Sons, Ltd.