Tran, Cong Nam and Nguyen, Nam Hoang and Hoang, Trong Minh (2019) Coordinated Multi-channel Transmission Scheme for Indoor Multiple Access Point VLC Networks. In: 2019 19th International Symposium on Communications and Information Technologies (ISCIT), 25-27/09/2019, Ho Chi Minh city.
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Abstract
Visible Light Communications (VLC) is considered as an effective complementary solution for indoor wireless communications to achieve high-speed and secure data transmission. Instead of using RF bandwidth, VLC uses the visible light spectrum to perform lighting and communications functions simultaneously. In a large indoor environment, a multiple ceiling access point VLC network (multi-CAP VLC) is deployed to achieve seamless coverage and high spectral efficiency. In the multi-CAP VLC network, random movement of user equipment (UE) leads to an uneven load distribution between CAPs. Furthermore, the quality of service of cell-edge users who reside at cell edge areas is decreased due to the high attenuation of the received signal. In the paper, to improve the QoS of cell-edge UEs, we propose a coordinated multi-channel transmission scheme (CMcT) for indoor multi-CAP VLC networks. The CMcT performs a coordinated downlink data transmission from different CAPs to a UE simultaneously. Performance results obtained by computer simulation show that the CMcT scheme can significantly improve user throughput and packet delay comparing with those of the single-channel transmission scheme.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Electronics and Communications > Communications |
| Divisions: | Advanced Insitute of Engineering and Technology (AVITECH) Faculty of Electronics and Telecommunications (FET) |
| Depositing User: | Nguy�n Nam Hoà ng |
| Date Deposited: | 04 Dec 2019 06:47 |
| Last Modified: | 04 Dec 2019 06:47 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/3682 |
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