Title :
A novel protocol design in hybrid networks of Visible Light Communication and OFDMA system
Author :
Aarthi, H. ; James, Komala
Author_Institution :
Dept. of Electron. & Commun. Eng., Valliammai Eng. Coll., Chennai, India
Abstract :
In recent years, Visible Light Communication (VLC)has emerged as a complementary technique to overcome the limitations of crowded radio frequency(RF) spectrum. Its superior characteristics include unlicensed wide bandwidth, high security and dual-use nature. It can transmit 4Mb/s in short distance. However VLC using illumination source is naturally suited to broadcast applications, it can also be used for full duplex communication but it resulted in instability of the system as it cannot operate without optical wireless localization technology, hence a hybrid network has been designed in which OFDMA is used for uplink transmission and VLC is used for downlink transmission. In order to demonstrate this a protocol has been proposed by combining the horizontal and vertical handover mechanisms for mobile terminal to resolve user mobility among different VLC hotspots and orthogonal frequency division multiple access(OFDMA).
Keywords :
OFDM modulation; mobility management (mobile radio); optical communication; protocols; OFDMA system; downlink transmission; horizontal handover mechanisms; hybrid networks; mobile terminal; orthogonal frequency division multiple access; protocol design; uplink transmission; user mobility; vertical handover mechanisms; visible light communication; Light emitting diodes; Logic gates; Mobile communication; Mobile computing; WiMAX; heterogeneous network; horizontal handover; hybrid visible light communication(VLC) and orthogonal frequency division multiple access (OFDMA) system; vertical handover; visible light communication;
Conference_Titel :
Electrical, Computer and Communication Technologies (ICECCT), 2015 IEEE International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4799-6084-2
DOI :
10.1109/ICECCT.2015.7226162
