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Video streaming in the multiuser indoor visible light downlink

Video streaming in the multiuser indoor visible light downlink
Video streaming in the multiuser indoor visible light downlink
Indoor visible light communication (VLC) using a light emitting diode (LED) transmitter provides a high-signal-to-noise (SNR) link, which is ideal for video transmission. The LED lights illuminate their own attocells and convey video streams in the downlink to multiple mobile terminals (MTs). Three different transmission schemes are considered, namely: the unity frequency reuse, the higher frequency reuse factor-based transmission, and the novel vectored transmission. We then formulate the optimization problems aiming at minimizing the video distortion. This paper commences by evaluating the performance of the MT at specific positions and continues by characterizing the peak SNR (PSNR) degradation across the room. Finally, we quantify the average performance of multiple MTs randomly walking in the room. By investigating the PSNR degradation, the video rate achieved, the energy consumed, and the effects of buffering delay on the video distortion, we demonstrate that the proposed VLC system is capable of supporting high-quality multimedia transmissions.
Li-Fi, PSNR degradation, VLC, VT-2, video frames, video streaming, achieved video rate, vectored transmission, visible light communications
2959-2986
Jiang, Junyi
0a4e01a5-c9d1-4031-8a31-5d6d8e63fa06
Huo, Yongkai
12ef7050-42c0-4660-9776-66ce675fb1ab
Jin, Fan
2494e7f1-0077-4ee7-a274-65cb7a8a5fbd
Zhang, Peichang
e87b4adb-ec8a-47e9-a73e-5b9140f5dc9d
Wang, Zhaocheng
a6bc4037-d26d-4ddd-9ce5-f018980115b6
Xu, Zhengyuan
3fd22483-8a16-4a84-895d-1f73078e3827
Haas, Harald
cdf0c1b3-2410-4cb4-bdc2-0221b5290267
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Jiang, Junyi
0a4e01a5-c9d1-4031-8a31-5d6d8e63fa06
Huo, Yongkai
12ef7050-42c0-4660-9776-66ce675fb1ab
Jin, Fan
2494e7f1-0077-4ee7-a274-65cb7a8a5fbd
Zhang, Peichang
e87b4adb-ec8a-47e9-a73e-5b9140f5dc9d
Wang, Zhaocheng
a6bc4037-d26d-4ddd-9ce5-f018980115b6
Xu, Zhengyuan
3fd22483-8a16-4a84-895d-1f73078e3827
Haas, Harald
cdf0c1b3-2410-4cb4-bdc2-0221b5290267
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Jiang, Junyi, Huo, Yongkai, Jin, Fan, Zhang, Peichang, Wang, Zhaocheng, Xu, Zhengyuan, Haas, Harald and Hanzo, Lajos (2015) Video streaming in the multiuser indoor visible light downlink. IEEE Access, 3, 2959-2986.

Record type: Article

Abstract

Indoor visible light communication (VLC) using a light emitting diode (LED) transmitter provides a high-signal-to-noise (SNR) link, which is ideal for video transmission. The LED lights illuminate their own attocells and convey video streams in the downlink to multiple mobile terminals (MTs). Three different transmission schemes are considered, namely: the unity frequency reuse, the higher frequency reuse factor-based transmission, and the novel vectored transmission. We then formulate the optimization problems aiming at minimizing the video distortion. This paper commences by evaluating the performance of the MT at specific positions and continues by characterizing the peak SNR (PSNR) degradation across the room. Finally, we quantify the average performance of multiple MTs randomly walking in the room. By investigating the PSNR degradation, the video rate achieved, the energy consumed, and the effects of buffering delay on the video distortion, we demonstrate that the proposed VLC system is capable of supporting high-quality multimedia transmissions.

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More information

Accepted/In Press date: 25 December 2015
Published date: 29 December 2015
Keywords: Li-Fi, PSNR degradation, VLC, VT-2, video frames, video streaming, achieved video rate, vectored transmission, visible light communications

Identifiers

Local EPrints ID: 385683
URI: https://eprints.soton.ac.uk/id/eprint/385683
PURE UUID: 38a97730-aa53-4dc7-921b-9a9176d7eea7
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 21 Jan 2016 09:59
Last modified: 06 Nov 2017 12:01

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Contributors

Author: Junyi Jiang
Author: Yongkai Huo
Author: Fan Jin
Author: Peichang Zhang
Author: Zhaocheng Wang
Author: Zhengyuan Xu
Author: Harald Haas
Author: Lajos Hanzo ORCID iD

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