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Updated: Aug 28, 2025

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
New Bounds on Capacity Region of Multiple Access Channels in Visible Light Communications
Ruixin Yang1,2, Bing Li1,2, Shuai Ma1,2,3,4
1School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China.
Abstract:
In this paper, we propose new inner and outer bounds of the capacity region for multiple access channels in visible light communication (VLC) networks under both peak and average optical power constraints. Specifically, the proposed inner bounds are established by employing the single-user capacity achieving input distribution for each user. The proposed outer bounds are derived by determining single-user capacities for each user and calculating a sum capacity upper bound by relaxing the input constraints. Numerical results show that the proposed new bounds are extremely tight and outperform existing bounds over wide ranges of SNRs.
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