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Light Beam Allocation Algorithm for Eliminating Interference in Visible Light Communications

Duc-Quan Nguyen and Ngoc-Tan Nguyen and Nam-Hoang Nguyen and Keattisak Spirinmanwat (2016) Light Beam Allocation Algorithm for Eliminating Interference in Visible Light Communications. In: IEEE ATC2016.

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In this paper, we present a model of visible light communication (VLC) systems which exploit light beams for downlink transmission. A calculation method is proposed for light beam configuration which guarantees no blind areas in the whole VLC coverage while minimizing the number of light beams. As a major contribution in this paper, a light beam allocation algorithm is proposed which aims to eliminate interferences between inter VLC Access Points (inter-APs) by using information of incoming data queue length and co-channel interference (CCI) conditions to decide which VLC beams are used for transmitting data to appropriate user equipments (UEs). By deploying the proposed algorithm, CCI can be eliminated because noise-effected regions and noise-free regions can be separated. Performance of the novel light beam allocation algorithm is analyzed, evaluated and then compared with that of another light beam allocation method using the Round-Robin algorithm. Performance results show that there are significantly improvements in SINR, user throughput and packet delay parameters when deploying the proposed light beam allocation algorithm.

Item Type:Conference or Workshop Item (Paper)
Subjects:Electronics and Communications
Divisions:Faculty of Electronics and Telecommunications (FET)
ID Code:2402
Deposited By: Nguy�n Nam Hoàng
Deposited On:12 Jan 2017 11:46
Last Modified:12 Jan 2017 11:46

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