A Cross-Layer Heuristic Algorithm for Addressing Shadowing Problem in Optical Attocell Networks

The performance of visible light communication (VLC)-based optical attocell networks degrades due to shadowing caused by opaque objects. In order to improve reliability, we propose a cross-layer algorithm to find the optimal routing and resource allocation schemes when shadowing occurs. Simulation results show that the optimal scheme found by the proposed algorithm significantly improves the performance of optical attocell networks with one randomly shadowed link.

[1]  Edward A. Lee,et al.  Simulation of Multipath Impulse Response for Indoor Wireless Optical Channels , 1993, IEEE J. Sel. Areas Commun..

[2]  Masao Nakagawa,et al.  Adaptive equalization system for visible light wireless communication utilizing multiple white LED lighting equipment , 2009, IEEE Transactions on Wireless Communications.

[3]  Didier Colle,et al.  Mirror-aided non-LOS VLC channel characterizations with a time-efficient simulation model , 2019, Photonic Network Communications.

[4]  Abbas Jamalipour,et al.  Wireless communications , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[5]  Harald Haas,et al.  A Wireless Optical Backhaul Solution for Optical Attocell Networks , 2019, IEEE Transactions on Wireless Communications.

[6]  Jean Armstrong,et al.  Comparison of Asymmetrically Clipped Optical OFDM and DC-Biased Optical OFDM in AWGN , 2008, IEEE Communications Letters.