TY - JOUR
T1 - Improvement of Transmission Bandwidth for Indoor Optical Wireless Communication Systems Using an Elliptical Lambertian Beam
AU - Wu, Dehao
AU - Ghassemlooy, Zabih
AU - Rajbhandari, Sujan
AU - Le Minh, Hoa
AU - Boucouvalas, Anthony
PY - 2013/1
Y1 - 2013/1
N2 - In this letter, we propose a tuned elliptical Lambertian beam (ELB) model to achieve a higher transmission bandwidth than the conventional circular Lambertian beam (CLB) model for indoor optical wireless communication systems. ELB is generated by employing aM°×N° light shaping diffuser, and its power distribution is investigated. We first derive new expressions of the power distribution and the multipath impulse response for ELB. From the precise frequency responses of CLB and ELB sources, we show that the tuned ELB model offers a higher transmission bandwidth than CLB.
AB - In this letter, we propose a tuned elliptical Lambertian beam (ELB) model to achieve a higher transmission bandwidth than the conventional circular Lambertian beam (CLB) model for indoor optical wireless communication systems. ELB is generated by employing aM°×N° light shaping diffuser, and its power distribution is investigated. We first derive new expressions of the power distribution and the multipath impulse response for ELB. From the precise frequency responses of CLB and ELB sources, we show that the tuned ELB model offers a higher transmission bandwidth than CLB.
KW - Elliptical Lambertian beam
KW - multipath dispersion and frequency response
KW - optical wireless communication
U2 - 10.1109/LPT.2012.2227304
DO - 10.1109/LPT.2012.2227304
M3 - Article
SN - 1041-1135
VL - 25
SP - 107
EP - 110
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 2
ER -