Title :
Multiuser MISO indoor visible light communications
Author :
Jie Lian ; Noshad, Mohammad ; Brandt-Pearce, Maite
Author_Institution :
Charles L. Brown Dept. of Electr. & Comput. Eng., Univ. of Virginia, Charlottesville, VA, USA
Abstract :
Visible light communications is an energy efficient and cost effective solution for indoor wireless connectivity. In this paper we explore algorithms for supporting many users concurrently by optimizing the use of individual LEDs in each luminary. The directionality of LEDs is considered when assigning multiple LEDs to a user, forming a multiple input single output (MISO) system. Exploiting the spatial separation of detectors, MISO techniques using code division multiple access and minimum mean square error detection can offer high performance to simultaneous users while preserving the properties of the lighting system, such as spatially and temporally continuous dimmable illumination.
Keywords :
code division multiple access; indoor radio; least mean squares methods; light emitting diodes; lighting; multiuser detection; optical communication; telecommunication power management; LED; code division multiple access; energy efficient communication; indoor wireless connectivity; lighting system; luminary detector separation; minimum mean square error detection; multiple input single output system; multiuser MISO indoor visible light communication; Bit error rate; Data communication; Interference; Light emitting diodes; Lighting; Noise; Receivers;
Conference_Titel :
Signals, Systems and Computers, 2014 48th Asilomar Conference on
Print_ISBN :
978-1-4799-8295-0
DOI :
10.1109/ACSSC.2014.7094763
