Title :
Performance analysis of indoor MIMO visible light communication systems
Author :
Ngoc-Anh Tran ; Luong, Duy A. ; Thang, Truong C. ; Pham, Anh T.
Author_Institution :
Comput. Commun. Lab., Univ. of Aizu, Aizu-wakamatsu, Japan
fDate :
July 30 2014-Aug. 1 2014
Abstract :
In this paper, we study the performance of Repetition Code (RC) and Spatial Multiplexing (SMP) applied to Visible Light Communication (VLC) in indoor scenarios with non-direct line-of-sight (LOS) characteristics. Considering a VLC MIMO system with 4 transmitters within a typical 5 m × 5 m × 3 m room, by means of simulation, we investigate the distribution of Bit-error-rate (BER) when the receiver moves around the room. For various transmitter separations, the normalized area at which the system performance does not satisfy a required BER level is illustrated. The optimal values of transmitter separation for RC and SMP are 1.5 m and 3.5 m, respectively. Comparing between RC and SMP, the results show that RC outperforms SMP at low spectral efficiency. However, at relatively high spectral efficiency RC does not perform well since it requires a very high constellation size, while SMP with its spatial multiplexing gain can offer a much better performance.
Keywords :
MIMO communication; error statistics; indoor communication; optical communication; optical transmitters; space division multiplexing; BER level; SMP gain; VLC MIMO transmitters; bit-error-rate; distance 1.5 m; distance 3.5 m; high constellation size; indoor MIMO; nondirect LOS characteristics; nondirect line-of-sight; performance analysis; repetition code; spatial multiplexing; spectral efficiency; transmitter separations; visible light communication systems; Arrays; Bit error rate; Irrigation; Light emitting diodes; MIMO;
Conference_Titel :
Communications and Electronics (ICCE), 2014 IEEE Fifth International Conference on
Conference_Location :
Danang
Print_ISBN :
978-1-4799-5049-2
DOI :
10.1109/CCE.2014.6916680
