DocumentCode :
3464930
Title :
A hybrid Radio Frequency and broadcast Visible Light Communication system
Author :
Rahaim, Michael B. ; Vegni, Anna Maria ; Little, Thomas D C
Author_Institution :
Dept. of Electr. & Comput. Eng., Boston Univ., Boston, MA, USA
fYear :
2011
fDate :
5-9 Dec. 2011
Firstpage :
792
Lastpage :
796
Abstract :
Wireless network data consumption is experiencing drastic increases due to growing demands of mobile services and applications. Deployed networks using Radio Frequency (RF) communications are characterized by a shared medium, limited available spectrum and limited ability to scale with increasing demand. Directional communications, including Visible Light Communications (VLC), can limit contention in controlled environments and provide scalability through spatial reuse of the medium. This solution can provide massive aggregate data capacity in indoor scenarios if properly distributed. In this paper we propose an indoor hybrid system that integrates WiFi and VLC luminaries. Our system utilizes (i) broadcast VLC channels to supplement RF communications and (ii) a handover mechanism between WiFi and VLC to dynamically distribute resources and optimize system throughput. This approach offers the bandwidth density benefits of VLC, provides a non-intrusive RF back-channel, maintains compatibility with conventional RF devices, and demonstrates excellent scalability. Analytical and simulation results show improvements in aggregate performance (i.e., throughput and delay) of the hybrid, when compared to either system acting alone.
Keywords :
broadcast communication; mobile communication; mobility management (mobile radio); wireless LAN; RF communications; WiFi; broadcast visible light communication system; directional communications; handover mechanism; indoor hybrid system; mobile services; nonintrusive RF back-channel; radio frequency communication system; wireless network data consumption; Bandwidth; Delay; Downlink; IEEE 802.11 Standards; Radio frequency; Throughput; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
GLOBECOM Workshops (GC Wkshps), 2011 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4673-0039-1
Electronic_ISBN :
978-1-4673-0038-4
Type :
conf
DOI :
10.1109/GLOCOMW.2011.6162563
Filename :
6162563
Link To Document :
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